777 HAUL TRUCK (1/12 size)

[DADSGARAGE]

Here are a few more recent pics of the "1/12ish" size 777 haul truck I have been working on for a while now... later I will start at the begining and work forward through the build.....

I tend to build simple stuff not true to scale, lacking in detail and usually over build things but hey as long as it works!!! LOL!!!

I also have a link to a vid for this truck that may be helpful...

www.youtube.com/watch?v=1Qvx9eOP_QQ&feature=c4-overview&list=UUwrKPoW2ScnElm7fYjN3bEA

[BRICKNICK]

That's an awesome custom build you've got there. Great job.

[DADSGARAGE]

Thanks!! Now if I could only get it finished...LOL...

[DADSGARAGE]

OK so here is how it started.....the first thing I like to do once I have created a CAD/DXF file for a project is to (water jet) cut a simple plywood profile to see what it will look like more or less..LOL...sorry I'm a bit old school and looking at a drawing isn't the same as having a full size part to work with, besides having a simple plywood models gives me something "real" to look at and get ideas from and a 2D drawing doesn't always work the same in a 3D world...LOL

After I have the plywood model cut out I start designing and cutting the metal parts, making changes as the build progresses...most times there is more changes and less progress...LOL...learning all the time !!!

( here is a vid of my first build... A 1/12ish D11 www.youtube.com/watch?v=AV596tHo0_o )

[DADSGARAGE]

Simple rear suspension cylinders ( about 3/4" stroke) machined from pipe then welded and finished. Time will tell how good and for how long this will work....somethings ya just go to try....LOL
( there is nothing to stop them from pulling apart... I have recently built stops into the rear swing arms to limit the down travel...not sure how many time I lifted it up and pulled it all apart...funny how springs and any small parts like to bounce around and always end up rolling underneath something )

[RCP57]

It looks really good! I can't wait for you to get this done so that you can start on the next project on your list!

[DADSGARAGE]

That's a good laugh....I'm having a hard time building this truck!!! Building the PC1250 face shovel will be nearly impossible for my little brain...LOL

[DADSGARAGE]

OK this is for you Reg....it's started....Happy now?? LOL!!!

[DADSGARAGE]

A few more pics of the truck , D11 and work bench or at least I like to call it a work bench even though there doesn't seem to be much work done on it...LOL

[DADSGARAGE]

Progress on the frame and box.....keep in mind many things changed as I continued to build, so you may see things now in the pics that have now been changed and or removed...because I didn't like something or in most cases it just didn't work....

[DADSGARAGE]

Building the rear axle housing and bearing holder mods

[DADSGARAGE]

Changes made to the frame and swing arms in order to use a linear actuator as a hoist cylinder ( Firgelli linear actuator 12volt , 35 lbs , 9" stroke) This is one thing on this model that is not like the real deal....only a way of making it work, which is something I can live with as long as it works!!??

(The main frame is cut from 1/2" plate and the box frame is 1/4")

[DADSGARAGE]

Front strut build pics ( about 1" travel ).....almost like the real deal...LOL...they will eventually get covered in so you don't see the springs and help keep dirt out.....
(cut from 3/8" plate and 1"-1018 bar stock )

[DADSGARAGE]

More strut pics.....

[kerst]

Pretty impressive!

Kerst

[RCP57]

WHOOOO-HOOOOO!!!! You are showing signs of addiction my friend! I can't wait to see all this stuff moving dirt. That shovel will need some good quality hydraulics but will dig like crazy!

[9W Monighan]

Wow, That's coming along nicely. That water jet really makes it look easy.

[modelman]

DADSGARAGE-That is some nice work. I built the 777 but it was at 1:30 scale and was really difficult to build because of the size. My completed model would fit inside your box with room to spare. Are these the tires that will stay on your truck? Good job!!

[DADSGARAGE]

WHOOOO-HOOOOO!!!! You are showing signs of addiction my friend! I can't wait to see all this stuff moving dirt. That shovel will need some good quality hydraulics but will dig like crazy!

HAHA...signs of addiction to this hobby really?? Not me I can handle my hobby I can stop anytime I want...( OK so I'm in denial )....

If you are interested check out this vid, it's a bit boring but it is one of the few vids of a PC1250 set up as a face/front shovel.

www.youtube.com/watch?v=g_0WMlVWaVA

[DADSGARAGE]

DADSGARAGE-That is some nice work. I built the 777 but it was at 1:30 scale and was really difficult to build because of the size. My completed model would fit inside your box with room to spare. Are these the tires that will stay on your truck? Good job!!

Thanks.....and yes the tires you see are going to stay on the truck, they are a bit small but they are close to being the right size, the rims will all need to have some mods done to them I have made some changes to the rear rims and have done nothing with fronts yet

[DADSGARAGE]

Thanks for the comments guys....I will post more pics once I set up something on Photobucket or image shack...I don't want to waste any more space on here with pics...I just got on a roll posting and didn't realized how many pics I posted.. (OOPS SORRY!!)

Which of the two free photo sites is better?? Or are they both just as good or just as bad??

[doodlebug]

HAHA...signs of addiction to this hobby really?? Not me I can handle my hobby I can stop anytime I want...( OK so I'm in denial )....

If you are interested check out this vid, it's a bit boring but it is one of the few vids of a PC1250 set up as a face/front shovel.

www.youtube.com/watch?v=g_0WMlVWaVA

:lol::lol::lol::cop::cop::cop: Glad those weren't my tool's that got run over:p:p:p

I like the plywood mock up idea!
Cheer's, Neil.

[22fatcat]

Hey i like that haul truck, I use a waterjet at my work and I use the plywood technique on some of my projects. I have built a couple of excavators with it.
Nice job :cool:

[DADSGARAGE]

Glad to see someone else that has some experience with waterjet cutting, they are very useful and versatile machines...funny why more guys on here don't get parts cut on a waterjet or lazer...or maybe half the fun and challenge is in cutting the parts by hand at home. Or is it hard to find a shop that wants to do small jobs.........

[Lil Giants]

Well a great intro to your projects thus far Kordell. :cool:

I've been using photobucket for yrs & the last 2yrs been a subscriber for less than $20/yr. It usually works flawless for me, but it's the only one I've ever used. I saw your link to the comparison sites, pretty much any one of them will suffice. ;)

I see waterjet getting to be more common place all the time b/c more modellers are building the model core with steel instead of aluminum for greater weight, easier to weld together, less wear, less fatigue, ect.

[Espeefan]

Wow, this is a really great project! I'm subscribing. Looking forward to the updates as they come.

[DADSGARAGE]

Thanks Joe

I will most likely go with photobucket , seems to be the most used on here....

This is a good site to learn about waterjet cutting

http://www.waterjets.org/

Here is something else that might also interest builders...small plasma tables

http://torchmate.com/products/growth_series_4x4/

[DADSGARAGE]

Wow, this is a really great project! I'm subscribing. Looking forward to the updates as they come.

Thanks...glad you like it!! Slowly getting it done....as soon as I decide on a place to store pics I will continue to show more of the build and bring it up to date....

[DADSGARAGE]

:lol::lol::lol::cop::cop::cop: Glad those weren't my tool's that got run over:p:p:p

I like the plywood mock up idea!
Cheer's, Neil.

The operator did stop....for a second or so...LOL...and then he drove them over (that was the most exciting part in the video...LOL )

The plywood profiles are very handy...and easy to cut on the table...it also helps keep my kids from asking me when they can see something other than a drawing...LOL...

[DADSGARAGE]

Ok I got set up on photobucket...try to add some pics

Cut some test sprockets.....didn't buy the right ones so I made some to test the drive and speed (.250 Pitch )

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0170_zpsb25960b7.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0170_zpsb25960b7.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0169_zpscc0bccb9.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0169_zpscc0bccb9.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0182_zps611ad6b6.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0182_zps611ad6b6.jpg.html)

[DADSGARAGE]

Pics of the solid rear axle ( no diff. time will tell how it steers )

Shaft c/w flat and 1/2" NC threads

http://http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0173_zps69555960.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0173_zps69555960.jpg.html)

Rear duals on shaft

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0175_zps421a8727.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0175_zps421a8727.jpg.html)

Drive plate c/w flat to match shaft

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0176_zps862aec92.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0176_zps862aec92.jpg.html)

Add spacer to cover the nut

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0177_zps8d33dd57.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0177_zps8d33dd57.jpg.html)

Finished assy. c/w covers

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0184_zpsb759390c.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0184_zpsb759390c.jpg.html)

[DADSGARAGE]

OOPS try again.... here is the first pic

Shaft c/w flat and 1/2" NC treads


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0173_zps69555960.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0173_zps69555960.jpg.html)

[DADSGARAGE]

First try using this type of steering control ( this one did not work needed some changes )

Used a Hitec 785 winch servo ( 3.5 turns) and a 12T sprocket ( servo city)
http://www.servocity.com/html/32p_hitec_metal_gear.html

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0195_zps34c55863.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0195_zps34c55863.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0196_zpsd5571854.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0196_zpsd5571854.jpg.html)

[DADSGARAGE]

Drilled and tapped holes in the strut shafts to attach the steering contol arms
(cut from 10ga)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0207_zpsca256bd3.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0207_zpsca256bd3.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0209_zpscd52c0df.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0209_zpscd52c0df.jpg.html)

[DADSGARAGE]

Needed to get this thing on all fours...or should I say six....
Cut the bearing hubs off the cheap rims that came with the tires , then made simple front hubs for testing this thing out...after welding they got faced off , drilled and reamed for some bushing. I hope to make some better front hubs with ball bearings later on (but most likely I will use these for a long time..LOL)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0242_zps0d61c6f9.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0242_zps0d61c6f9.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0240_zps2ce3bce8.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0240_zps2ce3bce8.jpg.html)

[DADSGARAGE]

Steering design...take 2....

Really wanted to have this all in the body and not under the truck but for now it will work...don't even know how or if this idea will work, needed to do something to test it all out.....(hopefully it will have enough torque for this heavy model)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0213_zpse56429cc.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0213_zpse56429cc.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0212_zps25fa56c0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0212_zps25fa56c0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0219_zps71944676.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0219_zps71944676.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0215_zps85667a17.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0215_zps85667a17.jpg.html)

[doodlebug]

Looking Good, If you decide to swap out the rear axle, this an idea to take a gander at.
http://www.surpluscenter.com/Power-Transmission/Transaxles/Mechanical-Transaxles/AXLE-DIFFERENTIAL-W-SPROCKET-13-1500.axd
Cheer's, Neil.

[DADSGARAGE]

That would work....if it was a bit smaller or if this truck was a bit bigger...LOL

[RCP57]

Looking good man! I can see that it won't be long now and it will be running! I also know from experience that it sucks to have a truck without a loader so something tells me that the loader will be started pretty soon!

That's a good find Neil. I've never seen one that is that small. Too bad there isn't a place like that in Canada to buy from.

[DADSGARAGE]

Looking good man! I can see that it won't be long now and it will be running! I also know from experience that it sucks to have a truck without a loader so something tells me that the loader will be started pretty soon!

That's a good find Neil. I've never seen one that is that small. Too bad there isn't a place like that in Canada to buy from.

There is a place here in Canada it's called Princess Auto...well almost...LOL
(don't tell anyone...but I tried this thing out at the shop today....HEEHEE..)

[RCP57]

There is a place here in Canada it's called Princess Auto...well almost...LOL
(don't tell anyone...but I tried this thing out at the shop today....HEEHEE..)

Princess doesn't have enough junk anymore! Too much made in China new stuff!

...and how did it go???? Did it steer???

[DADSGARAGE]

How did what go ??? Can't tell ya !!!
( Hey man.... I told you not to tell anyone !!!!..... LOL....I will add more soon....)

[DADSGARAGE]

Cut new plates for the rear swing arms to limit the down travel and avoid pulling the rear suspension cylinders apart everytime I picked it up.....needed to do this a long time ago....

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0224_zps2d955ded.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0224_zps2d955ded.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0226_zps3e0e09a0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0226_zps3e0e09a0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0228_zps28289f13.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0228_zps28289f13.jpg.html)

[doodlebug]

I see what you mean about "SPACE".
Cheer's, Neil.

[DADSGARAGE]

Thanks for the link!!...yes a diff. would be much better!!! but space is a problem even on this bigger model...the axle housing (pipe) is about 2.850" OD

[DADSGARAGE]

Here is a vid of the steering...it is a bit slow but it does seem to have enough torque ( about 4 seconds , full travel, left to right)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/th_MVI_0221_zpsf91fd9dd.jpg (http://i1291.photobucket.com/albums/b546/DADSGARAGE/MVI_0221_zpsf91fd9dd.mp4)

Thanks for looking....

[RCP57]

Sweet! Now lets see it driving around!
A friend of mine is running a brand new PC5500 face shovel in a BC coal mine. Yesterday he dropped by for a Xmas visit with a present for me...A 400 page operation and maintenance manual for the machine... In 1/10 it will be 35" tall at the house, and about 29" wide with the standard tracks. I'm not sure if I will try to build it but if I did it would be huge.

[Rimrock]

Hi, thats a fine steering setup you've got there) The speed seams more than fast enough i would say. Is that just a standard servo? It seams to follow the stick, is it some special programing that makes the servo travel that many turns in each direction, is it available on several kinds of radios? what about the pot.meter that usually is in the servos, is it removed or?
I've got a Airtronics Sd-10G here, that I really haven't started to get that familiar to yet, but I noticed something in the book about adjusting servos up to 150% travel. On your, you must have but it to several 1000% travel?

[JAMMER]

Great job on the 777 lot of nice ideas and it also helps to have a water jet close at hand. You have put some great thought into this build and it shows. I would like to do one to match my 1/12 scale excavator with some changer to what you did. Keep up the good work you have a talent. Ed

[DADSGARAGE]

Sweet! Now lets see it driving around!
A friend of mine is running a brand new PC5500 face shovel in a BC coal mine. Yesterday he dropped by for a Xmas visit with a present for me...A 400 page operation and maintenance manual for the machine... In 1/10 it will be 35" tall at the house, and about 29" wide with the standard tracks. I'm not sure if I will try to build it but if I did it would be huge.

Thanks...( I didn't get a video when I was trying it out the other day, the steering set up does have enough power even with 60lbs of weight in the box, but this is on a flat concrete floor...dirt could be a different story.I just have foam in the rear tires and the 60lbs was really flattening them out but it still seemed to turn OK , but I think the rear tires might be slipping on the rims)

A PC5500 in 1/10 would be awesome!!! If you build it you almost won't need your mini ex. anymore. What about the PC3000, just a bit smaller

http://www.equipmentcentral.com/north_america/data/new_equipment/ACF1184.pdf

[DADSGARAGE]

Hi, thats a fine steering setup you've got there) The speed seams more than fast enough i would say. Is that just a standard servo? It seams to follow the stick, is it some special programing that makes the servo travel that many turns in each direction, is it available on several kinds of radios? what about the pot.meter that usually is in the servos, is it removed or?
I've got a Airtronics Sd-10G here, that I really haven't started to get that familiar to yet, but I noticed something in the book about adjusting servos up to 150% travel. On your, you must have but it to several 1000% travel?

Here is a link to the winch servo I'm trying in steering, it has 3.5 turns
http://hitecrcd.com/products/servos/boat-servos/hs-785hb-3.5-turn-winch-servo/product

I got the steering idea from looking at this set up at Servo City
http://www.servocity.com/html/spg785a-bm_bottom_mount.html

[Espeefan]

This is such a cool build to watch, and you are making incredible progress! I'm glad you got some larger photos up. I like your drivetrain and that steering system is pretty cool. I hadn't seen that style servo rack on servocity before. Those guys are constantly coming up with lots of new products. Genius idea on limiting the rear suspension travel, with those new arms and the set screw stops too.

I hope you don't mind, but I'd like to offer a suggestion for your steering knuckle drag links are set up. I've tried an identical system just like that before and I found that you can't get the proper ackerman geometry with it. The inside (of the turn) tire should turn in sharper than the outside. It makes a huge difference in steering. Right now, yours is the opposite. On a heavy truck like this, you might notice an improvement even more so than smaller models. It will 'plow' less in the turns.

It looks you could pretty easily fix the geometry, if you wanted, without changing anything but the way your drag links are bolted to the center steering arm. You just need to swap the right and left side drag links, where they mount to the center arm, with each other. Obviously you can't do that without interference, unless you bolt one drag link on the top of the arm to the top of the steering knuckle, and one on the lower side of both the arm and the knuckle. Picture worth a thousand words....

http://i4.photobucket.com/albums/y127/Espeefan/Steering_zpsd867d91d.jpg

I don't know if you have the room for changing the drag links to one under, one over, but if you do, give it a shot, and then take your truck for another drive to check how much better it steers. Like I said, I've been there, tried that! Just wanted to share my experiences. I hope you don't mind me suggesting this, and my intention is not to offend you. I can't wait to see this truck all finished up!

[RCP57]

Thanks...( I didn't get a video when I was trying it out the other day, the steering set up does have enough power even with 60lbs of weight in the box, but this is on a flat concrete floor...dirt could be a different story.I just have foam in the rear tires and the 60lbs was really flattening them out but it still seemed to turn OK , but I think the rear tires might be slipping on the rims)

A PC5500 in 1/10 would be awesome!!! If you build it you almost won't need your mini ex. anymore. What about the PC3000, just a bit smaller

http://www.equipmentcentral.com/north_america/data/new_equipment/ACF1184.pdf

I think a 1/10th 5500 would be a little hard to move around but you are right, I could probably sell my Kubota!lol I have been planning a big Euc R18 in my head for a while so the shovel may come in handy some day...

Instead of running foams in the rear tires, couldn't you just put the valve stems in the center between the duals?

[DADSGARAGE]

I think a 1/10th 5500 would be a little hard to move around but you are right, I could probably sell my Kubota!lol I have been planning a big Euc R18 in my head for a while so the shovel may come in handy some day...

Instead of running foams in the rear tires, couldn't you just put the valve stems in the center between the duals?

Ya a 1/10 shovel that size would be a challenge to move around sounds like work....you would just have to build a bigger truck to haul it around, something like the photo but bigger...much bigger

I plan on using air on the inside duals and have the stems facing in toward the frame, I really don't want to see valve stems but I can't help it....there is no room between the tires to get at the valve stems, and they are a split rim (two halves) so that means the tires must be mounted in order to put air in them.....may need a way to connect the rims together before they get installed....

[RCP57]

Could you extend the valve stem on the outside dual and run it through the rim of the inside tire so that both stems were on the frame side? Having air in all the tires would be nice so that you could adjust things to suit weight or traction.

[DADSGARAGE]

Good question....need to give that idea some thought !!!

[doodlebug]

What about some of those short chrome valve stems?
Cheers, Neil.

[DADSGARAGE]

This is such a cool build to watch, and you are making incredible progress! I'm glad you got some larger photos up. I like your drivetrain and that steering system is pretty cool. I hadn't seen that style servo rack on servocity before. Those guys are constantly coming up with lots of new products. Genius idea on limiting the rear suspension travel, with those new arms and the set screw stops too.

I hope you don't mind, but I'd like to offer a suggestion for your steering knuckle drag links are set up. I've tried an identical system just like that before and I found that you can't get the proper ackerman geometry with it. The inside (of the turn) tire should turn in sharper than the outside. It makes a huge difference in steering. Right now, yours is the opposite. On a heavy truck like this, you might notice an improvement even more so than smaller models. It will 'plow' less in the turns.

It looks you could pretty easily fix the geometry, if you wanted, without changing anything but the way your drag links are bolted to the center steering arm. You just need to swap the right and left side drag links, where they mount to the center arm, with each other. Obviously you can't do that without interference, unless you bolt one drag link on the top of the arm to the top of the steering knuckle, and one on the lower side of both the arm and the knuckle. Picture worth a thousand words....


I don't know if you have the room for changing the drag links to one under, one over, but if you do, give it a shot, and then take your truck for another drive to check how much better it steers. Like I said, I've been there, tried that! Just wanted to share my experiences. I hope you don't mind me suggesting this, and my intention is not to offend you. I can't wait to see this truck all finished up!

The pics of the steering are deceiving...I didn't have the tie rod lengths set up properly when I took the pics.... one side is longer(oops), which means the steeing arms are not parallel to each other or the frame when pointed straight. I think I know what you mean about the steering geometry when turning the inide tires always have a smaller turning radius which is why the inside front tire need to turn at a sharper angle than the outside tire...this is also the reason why a differential is needed....

Best part of being on here is learning from others...thanks for the input!!

Here is a screen shot of what I used to set up the steering on the truck at full lock....maybe I did this wrong??

http://i1291.photobucket.com/albums/b546/DADSGARAGE/Steeringscreenshot_zpsb00c699d.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/Steeringscreenshot_zpsb00c699d.jpg.html)

[RCP57]

The pics of the steering are deceiving...I didn't have the tie rod lengths set up properly when I took the pics.... one side is longer(oops), which means the steeing arms are not parallel to each other or the frame when pointed straight. I think I know what you mean about the steering geometry when turning the inide tires always have a smaller turning radius which is why the inside front tire need to turn at a sharper angle than the outside tire...this is also the reason why a differential is needed....

Best part of being on here is learning from others...thanks for the input!!

Here is a screen shot of what I used to set up the steering on the truck at full lock....maybe I did this wrong??

http://i1291.photobucket.com/albums/b546/DADSGARAGE/Steeringscreenshot_zpsb00c699d.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/Steeringscreenshot_zpsb00c699d.jpg.html)

Oh come on now that's just cheating! What happened to the build it wrong ten times, get p'd off, forget about it and have the solution come to you when you are thinking about something completely different way of building? I need to get more computer savvy!

[DADSGARAGE]

I need all the help I can get.....I still make things wrong ten times...I just make more mistakes faster....

[modelman]

DADSGARAGE-you are doing some great work on this build. I have enjoyed watching your progress. A bit more on the akerman steering (if you care):confused: I think for proper akerman geometry with both front wheels pointed straight forward, the steering arms should be aligned with the center of the rear axle. Here is a neat diagram that shows how it works.
http://quaxio.com/steering/. Keep up the good work!!!

[DADSGARAGE]

DADSGARAGE-you are doing some great work on this build. I have enjoyed watching your progress. A bit more on the akerman steering (if you care):confused: I think for proper akerman geometry with both front wheels pointed straight forward, the steering arms should be aligned with the center of the rear axle. Here is a neat diagram that shows how it works.
http://quaxio.com/steering/. Keep up the good work!!!

Thanks for the info, getting the steering geomerty right is a tricky thing and challenging...mine will not be exactly right but it will be close"ish".. I found this picture of a truck standing on it's tail...interesting veiw of the steering


http://i1291.photobucket.com/albums/b546/DADSGARAGE/DSC03939_zps5bd58807.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/DSC03939_zps5bd58807.jpg.html)

[Espeefan]

The pics of the steering are deceiving...I didn't have the tie rod lengths set up properly when I took the pics.... one side is longer(oops), which means the steeing arms are not parallel to each other or the frame when pointed straight. I think I know what you mean about the steering geometry when turning the inide tires always have a smaller turning radius which is why the inside front tire need to turn at a sharper angle than the outside tire...this is also the reason why a differential is needed....

Best part of being on here is learning from others...thanks for the input!!

Here is a screen shot of what I used to set up the steering on the truck at full lock....maybe I did this wrong??

http://i1291.photobucket.com/albums/b546/DADSGARAGE/Steeringscreenshot_zpsb00c699d.jpg

That CAD drawing of the truck turning is exactly what you want. Perfect, in fact! I think the problem is your steering drag links do not travel equally, nor in a parallel / linear fashion, if that makes sense. Take a look at this picture.

http://i4.photobucket.com/albums/y127/Espeefan/steering2_zps892dbab3.jpg

Because your center steering arm swings in a substantial arc, the drag links do not maintain much parallelism with each other. With the wheels turned to the left, the more steering throw you add, the more out of parallel the right side link becomes. The result is the right link pushes the right knuckle more than the left link pulls the left knuckle. The knuckle on the right is at a greater angle, which is exactly the opposite effect you are after. Does that make sense, or am I barking up the wrong tree? :D

[Espeefan]

Thanks for the info, getting the steering geomerty right is a tricky thing and challenging...mine will not be exactly right but it will be close"ish".. I found this picture of a truck standing on it's tail...interesting veiw of the steering


http://i1291.photobucket.com/albums/b546/DADSGARAGE/DSC03939_zps5bd58807.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/DSC03939_zps5bd58807.jpg.html)

That is a very interesting photo! In all honesty, your steering set-up looks like a very good facsimile of the 1:1 trucks! Makes me wonder if they have the proper ackerman effect or not? It could be that the 1:1 truck's links to the knuckles are longer, reducing the parallelism problems encountered in small scale, and the travel arc of the center arm may be less, if it's pivot point is further back from the bolts that secure the steering links?

[JAMMER]

I was wondering if you took the two tie rods at the center pivot point and swapped them so that they would be close to the center pivot point if that would work better. Ed

[doodlebug]

I was wondering if you took the two tie rods at the center pivot point and swapped them so that they would be close to the center pivot point if that would work better. Ed

That's what Cat called "sprunion" steering on there forklifts,
If I remember correctly?
Cheers, Neil.

[RCP57]

I say call it good enough on the steering, finish the truck, and get on with the shovel already...:p

[dirtpusher9]

Love the work you've done on the truck and the dozer, very impressive. I with Reg, good enough on the steering, lets see it haul a load.

[DADSGARAGE]

I have to agree with you both (RCP57,dirtpusher9)....enough on the steering already....this is a topic that could go on and on...I don't want to get into a debate on something that is right or wrong, debates only end up with someone getting offended at one point.....so at this point we will say my steering geometry isn't the best ( and no I'm not offended by any comments or suggestions...takes more than that to hurt my "feeling"...LOL) my only concern with the steering idea was if it would be strong enough to turn with/without a load on the truck...the other concern is the fact it has no diff. which could be the biggest problem when steering the truck no matter how good the steering geometry is or isn't. I do appreciate all the suggestions and ideas!!! Thanks guys for all the input!!! Building stuff from scratch is a challenge and any help from others is great and always welcome!!!

[RCP57]

I have to agree with you both (RCP57,dirtpusher9)....enough on the steering already....this is a topic that could go on and on...I don't want to get into a debate on something that is right or wrong, debates only end up with someone getting offended at one point.....so at this point we will say my steering geometry isn't the best ( and no I'm not offended by any comments or suggestions...takes more than that to hurt my "feeling"...LOL) my only concern with the steering idea was if it would be strong enough to turn with/without a load on the truck...the other concern is the fact it has no diff. which could be the biggest problem when steering the truck no matter how good the steering geometry is or isn't. I do appreciate all the suggestions and ideas!!! Thanks guys for all the input!!! Building stuff from scratch is a challenge and any help from others is great and always welcome!!!

Well said...now did you weld it together and paint it this afternoon or what?

[DADSGARAGE]

Well said...now did you weld it together and paint it this afternoon or what?

Ummm...no.....:p......but I will add some pics....

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0189_zps762534d1.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0189_zps762534d1.jpg.html)


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0191_zpsf32c159f.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0191_zpsf32c159f.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0248_zps51b8e8b7.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0248_zps51b8e8b7.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0249_zps027c8d0c.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0249_zps027c8d0c.jpg.html)

[ihbuilder]

awesome job on the ladders :cool:and the whole truck , I've been watchin it on the tube before you posted here .:cool::cool: H2O jet ? if so it's giving me some new ideas in the future .

[RCP57]

Quite a bit of dirt on those tires now hey...


The ladders look great!...The whole truck looks great actually. With some paint it's going to look awesome! Do you find that with each model, you want to create more detail?

[DADSGARAGE]

Quite a bit of dirt on those tires now hey...


The ladders look great!...The whole truck looks great actually. With some paint it's going to look awesome! Do you find that with each model, you want to create more detail?

Ya...look at all the dirt hey...tells you how clean my floor is...I would like to get them really dirty but this time of year dirt is hard to find,or should I say just hard and under snow....

I'm happy with the ladders even though it would be better if they were round and not square...but if I can cut the parts out all the better...good thing I'm not a true scale builder !!
Yes...having a bit more detail does seem to be getting more important for me even on my "Plain Jane" builds!! There are some details that just have to be on the model...just not the same without them. The hardest part is making it all work right...then it seems once you get it working properly you just want to paint it and go use it... adding the details seems to get forgotten...or put off for along time,so the trick is never paint your model that way it is always a work in progress!! LOL :D

[DADSGARAGE]

Great job on the 777 lot of nice ideas and it also helps to have a water jet close at hand. You have put some great thought into this build and it shows. I would like to do one to match my 1/12 scale excavator with some changer to what you did. Keep up the good work you have a talent. Ed

Hi Ed...Thanks....and yes having access to a waterjet is a big plus!! Good thing....because it supplies the "talent" !!;) Hope my build can help you with yours...if I can be of help in anyway let me know. Thanks again glad you like it....

[DADSGARAGE]

awesome job on the ladders :cool:and the whole truck , I've been watchin it on the tube before you posted here .:cool::cool: H2O jet ? if so it's giving me some new ideas in the future .

Thanks IH......being able to cut parts on a waterjet has been very helpful...hopefully more builders will consider getting parts cut on a waterjet or lazer....it is a big time saver!!! The challenge might be in finding a shop to do small jobs....so this link might be of interest to some builders...small plazma cutting tables at "Torchmate"

http://torchmate.com/products/torchmate_2x2/ http://www.youtube.com/watch?v=ozZ52TatcIA

[DADSGARAGE]

A few more pics......

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0257_zps2f0998f2.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0257_zps2f0998f2.jpg.html)


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0258_zps8fd90df4.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0258_zps8fd90df4.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0261_zps5363871e.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0261_zps5363871e.jpg.html)

Thanks again for looking....

[apfubar]

Very nice!

[DADSGARAGE]

Very nice!

Thanks...slowly getting this built....

[JAMMER]

The Tipple 7 is coming along nicely. When I do one it will be made out of aluminum easier to machine and lot lighter. I got the wheels for it and that is as far as I got. I could have it water jetted I have a place that does it for me at a very reasonable price. Right now though I have 3 other projects that are taking up my time. Keep up the great work it. Ed

[Trucker_Jo]

Wow this thing look awesome! (And heavy) The jet seems capable of making some amazing parts for you so far. Looking forward to updates :D

[DADSGARAGE]

Here is short vid of the truck...it is a bit slow but it will have to work for now....

MERRY CHRISTMAS EVERYONE !!!!!


http://i1291.photobucket.com/albums/b546/DADSGARAGE/th_MVI_0266_zps59bbec12.jpg (http://i1291.photobucket.com/albums/b546/DADSGARAGE/MVI_0266_zps59bbec12.mp4)

[RCP57]

Wooo-hooo! Looks good and just in time to haul presents to the Xmas tree! I sure like the size of that. I don't think the speed is too bad? I guess you could always up you voltage or change the front sprocket if you thought it wasn't fast enough.



Kerry Christmas KP!

[JAMMER]

Wo it's alive. It seems to turn all right, great job. With the 5 gallon pail you start to get the size of it. Ed

[RCP57]

....I meant Merry Christmas not Kerry Christmas...

[modelman]

DADSGARAGE-truck looks great. Turning radius is good, speed may be a bit slow but can be easily fixed. Have you calculated what the scale speed should be (ft. per sec.)? Keep the pictures coming.

[FlyingBeagle]

Wow, that looks fantastic. Steering seems to work just fine even without a rear differential. I cant wait to see this truck loaded to the gills lumbering up a haul road.

[DADSGARAGE]

The Tipple 7 is coming along nicely. When I do one it will be made out of aluminum easier to machine and lot lighter. I got the wheels for it and that is as far as I got. I could have it water jetted I have a place that does it for me at a very reasonable price. Right now though I have 3 other projects that are taking up my time. Keep up the great work it. Ed

The truck is slowly coming together...slowly.....ALM. would be a much better and lighter material to use for a bigger model like this...some day when I grow up I want to learn how to weld ALM.....:o:)

Wow this thing look awesome! (And heavy) The jet seems capable of making some amazing parts for you so far. Looking forward to updates :D

Thanks.....and yes it is heavy!!! Might be the only thing about this build that ends up being to scale...LOL....

[DADSGARAGE]

Wooo-hooo! Looks good and just in time to haul presents to the Xmas tree! I sure like the size of that. I don't think the speed is too bad? I guess you could always up you voltage or change the front sprocket if you thought it wasn't fast enough.

Thanks.....it was nice being able to see this thing move around a bit, even if it is a bit slow, hopefully it will have enough power to move with a full load....I did try it with some weight on it but the rear tires are almost running flat because I only have foam in them now...they need air or more foam,deal with that later....


[QUOTE=JAMMER;100417]Wo it's alive. It seems to turn all right, great job. With the 5 gallon pail you start to get the size of it. Ed

It is alive...well almost...finally remember to get vid of it...funny how tricky it is to hold the camera and radio at the same time,good thing I wasn't chewing gum...LOL...glad the pail was helpful I put it down for two reasons...get some idea of it's size and show the turn radius. It does seem to turn alright but this is with no load on concrete and no air in the rear tires,I think the tires might be slipping on the rims...one more thing to figure out later....

[DADSGARAGE]

DADSGARAGE-truck looks great. Turning radius is good, speed may be a bit slow but can be easily fixed. Have you calculated what the scale speed should be (ft. per sec.)? Keep the pictures coming.

Thanks......It does seem to turn alright at this point....the speed thing might be a problem, I do have it geared down now to what I hope will provide enough power when it is loaded...that little motor and gear box has a crazy amount power but it still may not be good enough considering the size of the tires and the size and weight of the truck....should have used ALM....but I can't weld ALM.....more like I just can't weld....LOL

Wow, that looks fantastic. Steering seems to work just fine even without a rear differential. I cant wait to see this truck loaded to the gills lumbering up a haul road.

Thanks...it is starting to look like a truck ,not very true to scale but more of a "looks about rightish" build.....I wish the tires were a bit bigger and wider...
I really want to see this thing finished and hauling a load as well !!
(besides I need to get started on the shovel so someone stops hounding me about it....Reg...LOL:cop:)

[sparkycuda]

This is a really cool truck! Access to the waterjet really helps with correct dimensions and repetitive cuts - and with great accuracy.

I've re-read all the pages and did not see a reference to where to got the inside steering gear sector.?.? Saw the servo info with pinion gear. Did you make the big gear sector?

Anyway, awesome truck.

Ken

[doodlebug]

Have you looked at solid amerityre tires?
Cheers, Neil.

[DADSGARAGE]

This is a really cool truck! Access to the waterjet really helps with correct dimensions and repetitive cuts - and with great accuracy.

I've re-read all the pages and did not see a reference to where to got the inside steering gear sector.?.? Saw the servo info with pinion gear. Did you make the big gear sector?

Anyway, awesome truck.

Ken


Hi Ken glad you like the truck so far......yes the steering segment arm is also cut with a waterjet, a 32P internal spur gear is about the smallest the machine will cut and the root section of the gear is a bit off, the reason is the size of the kerf cut by the nozzle which is about .030" so that means the smallest radius it can cut is half that size or .015"...Hope this makes sence...

Here are a couple more pics of the steering gear set up.....a few things need to be done with it yet....I just have bolt in it now and still need to make a better pivot shaft for it etc......

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0270_zpsfbb0e0d5.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0270_zpsfbb0e0d5.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0271_zpsa3f567c6.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0271_zpsa3f567c6.jpg.html)

[doodlebug]

Have you looked at solid amerityre tires?
Cheers, Neil.

Found the link, http://www.tiresusa.com/amerityre-280-250-4-zig-zag-solid-hand-truck-tire-black.html
http://www.amerityre.com/Our-Products-4.html
Cheer's, Neil.

[RCP57]

Sorry Neil, I don't think they will work as they were made for a "hand Truck" not a "haul truck".:p

Those would make some nice 1/10th loader tires if the tread was a little different.

[DADSGARAGE]

Found the link, http://www.tiresusa.com/amerityre-280-250-4-zig-zag-solid-hand-truck-tire-black.html
http://www.amerityre.com/Our-Products-4.html
Cheer's, Neil.

Thanks for the link Neil...I was looking at this type of tire when I started the truck....a solid tire would be great....but they are a bit too wide, the height is better though...too bad the tread wasn't different because I think a guy could machine off one side to make it narrower..maybe...wish it was a diamond tread......

[DADSGARAGE]

Got some work done on the hand railing for the deck...much the same as the ladders...next will be the side railing and the small deck next to the cab....

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0279_zps7c76ce78.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0279_zps7c76ce78.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0280_zpsdf5191b3.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0280_zpsdf5191b3.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0281_zps3a5d06b5.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0281_zps3a5d06b5.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0284_zps11159cf6.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0284_zps11159cf6.jpg.html)

[doodlebug]

Well I tried :p:p:p Anybody have a regrooving Iron, http://www.ebay.com/itm/Treadtech-T2000-Tire-Regroover-/131079537142?pt=Other_Vehicle_Parts&hash=item1e84f301f6&vxp=mtr

Or maybe a cnc mill with a rotary table :D:D:D :lol::lol::lol:

Cheer's, Neil.

[RCP57]

Man that looks nice! Cheater...:mad::rolleyes::D

[DADSGARAGE]

Well I tried :p:p:p Anybody have a regrooving Iron, http://www.ebay.com/itm/Treadtech-T2000-Tire-Regroover-/131079537142?pt=Other_Vehicle_Parts&hash=item1e84f301f6&vxp=mtr

Or maybe a cnc mill with a rotary table :D:D:D :lol::lol::lol:

Cheer's, Neil.

That's interesting....??? Thanks for trying man!!!!

[DADSGARAGE]

Man that looks nice! Cheater...:mad::rolleyes::D

Cheater...???:eek: ( well maybe.....being able to use the "magic printer" does help!!:D)
You ever need something let me know....

KP

[Espeefan]

Wow, you've made some great progress on the 777. I like the detail you've been putting into the truck. The handrails and ladders look really good. The 5 gallon bucket really helps put things into perspective, on it's shear size. No doubt it will be a very well built, and heavy model. Nice work!

[DADSGARAGE]

Wow, you've made some great progress on the 777. I like the detail you've been putting into the truck. The handrails and ladders look really good. The 5 gallon bucket really helps put things into perspective, on it's shear size. No doubt it will be a very well built, and heavy model. Nice work!

Thanks!!! Adding the details seems to be the biggest challenge but the finished result is always rewarding. Hopefully it is well built...LOL...one thing is for sure...it is heavy!!! :eek::o

[DADSGARAGE]

Got a few more "details" done today..... the side hand railing....

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0286_zps30eef784.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0286_zps30eef784.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0287_zpsc89e8df0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0287_zpsc89e8df0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0289_zps7687665b.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0289_zps7687665b.jpg.html)

Slowly trying to get this thing to look a bit more like the real thing...

[Espeefan]

That's nice! Details always sell the appearance of a model. Are you planning on welding all the super structure components together? I can see some tack welds here and there, and some screws in other places. I would think a lot of the tack welds are probably strong enough for the components that won't be stressed, like the cab, fenders, ect. A little body filler to smooth the joints over, and it would be ready for paint. I wish I was a little better at tig welding. I do all right with SMAC welding. Not to much experience with tig.

[DADSGARAGE]

First attempt at the small deck/walkway beside the cab and the hand railing. Something about this just isn't right....think the walk way is too wide, trying to build this all without a scale model to use as a reference or blue prints is tricky, looking at 1:1 picture can only help so much, and many picture are not at the proper angle to get a good reference from...fun fun....very frustating at times!!! More time is spent looking at what has been added and trying to figure out why it doesn't seem to look right....or maybe it's a combination of a number of things that aren't right which make finding the problem a total DRAG !!! I must say...my hat's off to the scale builders!!!! Hope you don't mind my simple not so scale like build....learning all the time!!!:D:o

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0294_zpsc21f5291.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0294_zpsc21f5291.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0295_zpsbf850d29.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0295_zpsbf850d29.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0296_zps0e1b9ac0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0296_zps0e1b9ac0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0307_zps4e244917.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0307_zps4e244917.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0308_zpsa30f955d.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0308_zpsa30f955d.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0309_zps26f6541b.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0309_zps26f6541b.jpg.html)

[DADSGARAGE]

That's nice! Details always sell the appearance of a model. Are you planning on welding all the super structure components together? I can see some tack welds here and there, and some screws in other places. I would think a lot of the tack welds are probably strong enough for the components that won't be stressed, like the cab, fenders, ect. A little body filler to smooth the joints over, and it would be ready for paint. I wish I was a little better at tig welding. I do all right with SMAC welding. Not to much experience with tig.

Details details....yup it does help sell the appearance...just wish it wasn't so #%$@*^& frustrating....LOL...

All the parts you see that have been bent are done by leaving a small amount of material in place, just enough to hold it together and make it easy to bend by hand, all these areas will end up getting a full weld.
They will be mig welded (.023" solid wire) "down hand" to help reduce the amount of heat and avoid to much warping...Tig would be much better...my Tig welding skills are low...scratch that...more like zero !!! :o:eek: Just one more thing to learn when I grow up!!!:D

[Ken Orme]

A BIG WOW===it is looking good.

I see a valve stem. Are the rims 4 in dia with tube type tires?

Ken

[Espeefan]

Are you kidding me? That walkway and railing along side the cab looks awesome! I'd say it's quite scale looking, but then I do not have a 1:1 photo to compare it to. One benefit to using steel for all this is that it's more durable. Clamping up aluminum parts with vise grips would definitely mar the finish of the surface. Plus like you said, it's easier to weld.

[DADSGARAGE]

A BIG WOW===it is looking good.

I see a valve stem. Are the rims 4 in dia with tube type tires?

Ken


Thanks!!!

Yup , I see it too...:o....I have this rim on the wrong way OOPS...LOL...valve stem should be on the inside, and yes the rims are 4" with tubes....

www.princessauto.com/pal/en/Small-Assemblies/280-x-250-4-Wheel-Assembly/8442410.p

[DADSGARAGE]

Are you kidding me? That walkway and railing along side the cab looks awesome! I'd say it's quite scale looking, but then I do not have a 1:1 photo to compare it to. One benefit to using steel for all this is that it's more durable. Clamping up aluminum parts with vise grips would definitely mar the finish of the surface. Plus like you said, it's easier to weld.

Maybe it's just me but something just doesn't seem right....half the problem is knowing what it looks like when seen from above and or from different angles...most times all the pics I can find of this thing are looking up at the truck and not a birds eye view, maybe the real deal looks "goofy" too from some angles...LOL...not sure ??!!
Using steel does have it's advantages...but you pay a price for the added weight!!! A truck like this is meant to carry a big load..not be a big load..LOL

[porky69]

I drive real 777D's at work and the walkway looks right on. On the real thing the walkway looks large until you try and squeeze my butt on it then it gets pretty crowded.

Awesome build by the way.

[DADSGARAGE]

I drive real 777D's at work and the walkway looks right on. On the real thing the walkway looks large until you try and squeeze my butt on it then it gets pretty crowded.

Awesome build by the way.

Awesome!!!! Someone who actually knows what this rig should actually look like...how wide is that walkway??? I have this at a scale of about 18" wide...somehow I think the short front section is narrower than the side section is....if you could take a measurement for me that would be GREAT !!!!

Glad you like my attemt at building this truck....any pics and or suggestions on this build will be helpful and very much appreciated!!!!

KP

[DADSGARAGE]

One more small detail that got done today...the mud flaps...thankfully they look about right!!?? ;):D

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0291_zps411b2f6d.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0291_zps411b2f6d.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0292_zpse248c244.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0292_zpse248c244.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0293_zps6df9cdf1.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0293_zps6df9cdf1.jpg.html)

[RCP57]

You're a building machine my friend! Kind of reminds me of someone else I know:confused:...You don't sleep much either do you?

Your truck is looking awesome! I'd love to perch my Volvo onto a pile next to it and load it up!

Oh, be careful offering to cut out some pieces for me...I may just take you up on it!lol

[DADSGARAGE]

You're a building machine my friend! Kind of reminds me of someone else I know:confused:...You don't sleep much either do you?

Your truck is looking awesome! I'd love to perch my Volvo onto a pile next to it and load it up!

Oh, be careful offering to cut out some pieces for me...I may just take you up on it!lol

Sleep??? What's that??? Oh I know....something you do at night when it's dark....LOL....most of the time I think I work in my sleep and sleep while I work...HEEHEE...that almost makes sence!!?? ;)

The offer to cut you some parts still stands...however...just after I hit the "submit reply" button I thought about what I may have got myself into and the possible long list of "goodies" you would most likely ask for.....I'm actually kinda surprised you didn't???...yet...LOL...thought for sure I set myself up on that one!!! :eek::D;)

(Really if you want/need something send me an e-mail with dimensions etc ,I would be more than willing to help with a future project.....providing it's not a full blown build!!!! :eek:;):D) )

[doodlebug]

Have you seen the trailer toting version? http://cmpeng.com.au/page/MAJOR_PROJECTS/Low_Loaders/Tilting_Low_Loader.html
I'm guessing you have already seen this page? https://www.google.com/search?q=cat+777&rlz=1T4GGHP_enUS445US445&source=lnms&tbm=isch&sa=X&ei=iMe_UtHwLpLgoASEn4CoDg&ved=0CAkQ_AUoAQ&biw=1024&bih=612
Keep it up!
Cheer's, Neil.

[DADSGARAGE]

Have you seen the trailer toting version? http://cmpeng.com.au/page/MAJOR_PROJECTS/Low_Loaders/Tilting_Low_Loader.html
I'm guessing you have already seen this page? https://www.google.com/search?q=cat+777&rlz=1T4GGHP_enUS445US445&source=lnms&tbm=isch&sa=X&ei=iMe_UtHwLpLgoASEn4CoDg&ved=0CAkQ_AUoAQ&biw=1024&bih=612
Keep it up!
Cheer's, Neil.

Yes I have seen that....way cool....once I'm finished building this haul truck I have considered building another 777 truck c/w trailer for moving my D11,and the future PC1250 shovel....or at least a retro fit for this truck with that set up. It would be a great way to move this heavy stuff around!!! One thing at a time....so many things a guy wants to make!!! LOL!!!!

If I did build another 777 c/w trailer I would also consider this bottom dump trailer idea as well...just something different...but again one thing at a time, funny how working for a living always gets in the way of the fun stuff!! :cop:

http://i1291.photobucket.com/albums/b546/DADSGARAGE/1993-CAT-777C-LG_zps85ed5651.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/1993-CAT-777C-LG_zps85ed5651.jpg.html)

[JAMMER]

Hello you are doing a great job the walk ways and rails look awesome. You are moving right along there no mold growing on you. Keep up the good work. Ed

[porky69]

We are not allowed to have camera at work (get caught with one and you are probably going to lose your job). I will see if I can get some dimensions when I go back to work (work 7 on/7 off) but 18inches sounds about right.


if you are around the Edmonton area you could see these guys http://www.heavymetalequipment.ca/Home.aspx they rent them. Or just get them to deliver one to you and take some measurements, its only $32,000 a month plus delivery.

[Espeefan]

KP, what planetary ratio and motor did you go with for the 777? I'm just curious what you think the truck will gross out at, weight-wise, and about how much power it would take to move the load. How many volts are you running the motor at?

[FlyingBeagle]

I just read through a couple pages of this build to get myself caught back up, and the truck looks amazing. You are a true craftsman.

As far as your question regarding the appearance of the walkway, I think it looks fantastic, but what may be throwing it off to you is the open spaces in the walking surface. In the pictures it looks like the walking surface is expanded metal or diamond plate where you have solid metal with slots. Those slots in scale look a little big, probably a couple scale inches wide. If you attached some scale expanded metal or diamond plate on top I bet the scale appearance would change.

Again, I think it looks great and very scale, just trying to take a stab at what was bothering you when looking at it in person.

[DADSGARAGE]

KP, what planetary ratio and motor did you go with for the 777? I'm just curious what you think the truck will gross out at, weight-wise, and about how much power it would take to move the load. How many volts are you running the motor at?

The motor /gear box is a Banebots 256:1 P60 gear box RS540 motor. 12volts

The weight of the truck will be about 85-90lbs.....

I just read through a couple pages of this build to get myself caught back up, and the truck looks amazing. You are a true craftsman.

As far as your question regarding the appearance of the walkway, I think it looks fantastic, but what may be throwing it off to you is the open spaces in the walking surface. In the pictures it looks like the walking surface is expanded metal or diamond plate where you have solid metal with slots. Those slots in scale look a little big, probably a couple scale inches wide. If you attached some scale expanded metal or diamond plate on top I bet the scale appearance would change.

Again, I think it looks great and very scale, just trying to take a stab at what was bothering you when looking at it in person.

You maybe right about the slots...they are a bit big....scale would make them at about 1.5".....wish I had a picture of the walkway from above to see what it actually looks like...thanks for your input....glad you like the build!!

[RCP57]

"The weight of the truck will be about 85-90lbs.....":jump::bounce:

Nice!

[DADSGARAGE]

"The weight of the truck will be about 85-90lbs.....":jump::bounce:

Nice!

Hope it will carry more than it weighs....:D

[Espeefan]

The motor /gear box is a Banebots 256:1 P60 gear box RS540 motor. 12volts

The weight of the truck will be about 85-90lbs.....



:jaw:

[Fired up]

nice work, a work of art. I may need to get you to come help me dig out from all the snow we have here when you get it finished. We have over two feet already this is to much for this early in the winter.

[pigeonfarmboy]

Truck is killer! Lemme know when you decide to cut another set of sheets so I can tig one up! :D

[DADSGARAGE]

Happy New Year !!! :bounce:

[RCP57]

Happy new year to you as well KP!

[DADSGARAGE]

Cut some panels for the box ealier today....not sure if I want them (1/2") above the frame like in the pics or even with the top of the box frame....What do you guys think???
The holes in the panels will be plug welded and then sanded flat...to avoid seeing any welds....the box floor on this model is flat unlike the real deal...kinda wish I had made it more like the real deal...would look much better...the flat floor was the easy way out...LOL..:D;)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0311_zps17d11999.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0311_zps17d11999.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0315_zpsea6056cd.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0315_zpsea6056cd.jpg.html)

[DADSGARAGE]

:jaw:

I take it you are suprised at the weight....LOL...told you it was heavy!!!!

( when it is finished I will get the actual weight...I'm only guessing on the weight being 85-90lbs...but my back tells me I'm close!!! :) )

The weight on the 1:1 777D is 142,573 lbs so if I did the math right the 1/12 model should be 82.5 lbs ??? So it may end up being a bit heavier than it should be in terms of scale....good thing this is a 1/12"ish" size and not 1/12 scale...LOL....

[Trucker_Jo]

This model is massiVEE. And awesome:D I like the 1/2 inch kept above the frame part on the dump box I think it looks better than if it were to be cut flush. How many shovel-fulls of dirt you reckon this thing willl haul when you get there?

[DADSGARAGE]

This model is massiVEE. And awesome:D I like the 1/2 inch kept above the frame part on the dump box I think it looks better than if it were to be cut flush. How many shovel-fulls of dirt you reckon this thing willl haul when you get there?

Thanks....this thing is a fairly big...and really heavy...LOL...not sure how much this will carry,but he taller side walls will help a little...;)

[Izzy]

Really excellent forming and fab methods - I have learned a good bit from your posts - thank you. The guard rail and ladder methods are the best!

Thanks for those links to Waterjet companies and the Plasma cutter info - hopefully someday I can afford a table myself.

Once again - thanks for sharing your project - it's awesome!

[DADSGARAGE]

nice work, a work of art. I may need to get you to come help me dig out from all the snow we have here when you get it finished. We have over two feet already this is to much for this early in the
winter.
Thanks.....not sure if it is "art" but it is turning out to be a lot of work!!
( You just need to build a bigger dozer for all the snow...:eek::D )

Truck is killer! Lemme know when you decide to cut another set of sheets so I can tig one up! :D

Thanks.....didn't think there would be much interest in a 1/12 model on here maybe I was wrong....need to get this one done first....who knows someday I might cosider cutting some for others....(Tig is the way to go !!!)

[DADSGARAGE]

Really excellent forming and fab methods - I have learned a good bit from your posts - thank you. The guard rail and ladder methods are the best!

Thanks for those links to Waterjet companies and the Plasma cutter info - hopefully someday I can afford a table myself.

Once again - thanks for sharing your project - it's awesome!

Thanks!!!.....glad to see my simple build and ideas are helpful...that's what this is all about, sharing and learning from others. There are builders that are much more skilled and way way more talented than me on here....as long as we share, we all get to learn....and there is SO MUCH we all can learn from each other !!! Thanks Again....

[DADSGARAGE]

Started playing around with the fuel tank.....actually this will have two fuel tanks....it should have one fuel tank and one hyd. tank but I'm going to make both sides the same....besides you can only see one side at a time and most people won't see the error so hey works for me.....Ok so I'm cutting corners, again!!;):D ( I just want to get this done...work out the details later..maybe;) )

The tank looks a bit too long....need to shorten it just a little....try and try again!!!!:o

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0316_zps1c496588.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0316_zps1c496588.jpg.html)

[RCP57]

Looks good to me. I think you need to air up those rear tires again! That foam you have in there is unhappy...

[DADSGARAGE]

Looks good to me. I think you need to air up those rear tires again! That foam you have in there is unhappy...

YUP!!! No doubt!! Foam just isn't going to cut it!!! (Looks tired already and it hasn't done any work yet!!:))

[doodlebug]

Have you talked to a tire store, about urethane fill for your truck tires?
Cheers, Neil.

[RCP57]

I think he should put the tubes back in and run nitrogen... Don't want that tire pressure to change with all that heat build up while hauling!

[DADSGARAGE]

Have you talked to a tire store, about urethane fill for your truck tires?
Cheers, Neil.

OK...so it's my turn to be "tired and stupid"...LOL...never heard of urethane filled tires..tell me more!!:o;)

[DADSGARAGE]

I think he should put the tubes back in and run nitrogen... Don't want that tire pressure to change with all that heat build up while hauling!

Right!! Forgot about that.....heat build up in haul truck tires is bad!!! I will have to consider that....hate to blow a tire knowing this thing has such a "blistering speed"...more likely heat build up from carrying a heavy empty @$$ truck...:p

[RCP57]

Right!! Forgot about that.....heat build up in haul truck tires is bad!!! I will have to consider that....hate to blow a tire knowing this thing has such a "blistering speed"...more likely heat build up from carrying a heavy empty @$$ truck...:p

Yeah you wouldn't want it to burn up like that haul truck at the Meadowbank gold mine!

[DADSGARAGE]

Yeah you wouldn't want it to burn up like that haul truck at the Meadowbank gold mine!

Nope....truck/tire fires are no fun....they burn for days....

[doodlebug]

OK...so it's my turn to be "tired and stupid"...LOL...never heard of urethane filled tires..tell me more!!:o;)

http://www.pathwaypolymers.com/www/docs/164/

http://blog.otrwheel.com/what-is-polyurethane-foam-fill-and-how-does-it-work/
Go talk to a tire dealer that handles forklift and industrial/construction tire's, and they can give you more detail's, I don't think you need more than an "8"
on the durometer scale, but inflate your tire's to the desired pressure, and tell the dealer to match it with the fill. Spray foam at home depot is NOT the same stuff.
Hope this help's :eek::eek::eek:
cheer's, Neil.

[Trucker_Jo]

We have an old lawn mower that we use for towing trailers around the property. We had a tire shop fill the tires with foam. We still haven't had any problems with the tires even with the chains and a load on. So i'm sure whatever they used will work for you!

[DADSGARAGE]

Thanks guys for the tire fill info......that would be a good solution......the only draw back might be the added weight,not like this thing is a feather weight now...lol....

[DADSGARAGE]

Didn't get much done in the last few days other than work on the fuel tanks....sorry no pics yet...oops...
So here is a recap of the truck and a list of suppliers

Truck size...
Length- 32"
Height - 16"
Box width - 17.5"
Weight- Hard on the back....lol

Steering servo (3.5 turn winch servo)
http://hitecrcd.com/products/servos/boat-servos/hs-785hb-3.5-turn-winch-servo/product

Servo gear (12T -32P)
http://www.servocity.com/html/32p_hitec_metal_gear.html

Box hoist (9" - 35lbs linear actuator)
http://firgelliauto.com/product_info.php?cPath=75&products_id=13

Two speed controllers (one for drive,one for hoist)
http://www.robotmarketplace.com/products/0-SYREN25.html

#25 chain and sprockets
http://www.robotmarketplace.com/products/sprockets_main_25.html

Geared motor
http://www.robotshop.com/ca/en/banebots-256-1-p60-gearbox-rs540-brushed-motor-kit.html

http://www.robotmarketplace.com/products/0-PDX256.html

Tires and rims
http://www.princessauto.com/pal/en/Small-Assemblies/280-x-250-4-Wheel-Assembly/8442410.p

[Espeefan]

I take it you are suprised at the weight....LOL...told you it was heavy!!!!

( when it is finished I will get the actual weight...I'm only guessing on the weight being 85-90lbs...but my back tells me I'm close!!! :) )

The weight on the 1:1 777D is 142,573 lbs so if I did the math right the 1/12 model should be 82.5 lbs ??? So it may end up being a bit heavier than it should be in terms of scale....good thing this is a 1/12"ish" size and not 1/12 scale...LOL....

I am surprised how heavy it is, or will be, but then again it is a big model! Seeing it sitting on your lift table really helps put it into perspective for me, since we have many of the same sized lift table all around work.

At least you might be the first to say even the weight was accurately scaled down! :)

[DADSGARAGE]

This truck is turning out to be much heavier than I thought....yikes...cutting it from solid material is a big reason for the added weight, at least something might be close to scale.....lol

[Ashrod]

From my experience with racing go karts where the tires have to reach an optimum operating tempature of 165* F, when I ran tires with air or nitrogen they both reacted the same as far as how much air pressure was increased and it also took the same amount of laps to build the same heat and air pressure!!! With all that being said, I would look into foam filling the tires to achieve what you want!!! Also my wife's new nissan cube dropped air pressure from the recommended pressure of 44 psi to an average of 20 psi when the cold weather set in, and they are nitrogen filled also!!! Hope this helps!!!

[DADSGARAGE]

Made a new cab today (cut from 14ga)....needed to make some changes...so I added holes to attach the windows and the grab bar at the same time. Decided to use fasteners to attach the windows....the upper portion of the cab will be painted black so the fasteners shouldn't stick out to bad....;)


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0321_zpsf4bd2b70.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0321_zpsf4bd2b70.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0323_zps5f6263a3.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0323_zps5f6263a3.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0324_zps29ce8393.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0324_zps29ce8393.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0326_zps5846d15c.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0326_zps5846d15c.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0327_zps2b69e655.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0327_zps2b69e655.jpg.html)

[RCP57]

Nice! So jealous!

Maybe you should get some button head screws???? Not picking, just a suggestion.

[DADSGARAGE]

Thanks.....button heads would most likely look better....don't have any that small...yet...lol

[doodlebug]

Metal origami, That's a neat way to build!

Cheer's, Neil.

[D8R]

Here is short vid of the truck...it is a bit slow but it will have to work for now....

MERRY CHRISTMAS EVERYONE !!!!!


http://i1291.photobucket.com/albums/b546/DADSGARAGE/th_MVI_0266_zps59bbec12.jpg (http://i1291.photobucket.com/albums/b546/DADSGARAGE/MVI_0266_zps59bbec12.mp4)

To me it looks like you have got the correct speed, to often models are runned to fast:cop:!

Very nice model you are making, interesting way of solving the ribs on body!
A tripple 7 have always been a favorite for future modeling project, did find a 2nd hand model in 1/87 from CCM yesterday, can be useful for reference.
http://i1014.photobucket.com/albums/af270/gulalastbilen/IMG_0217_zps6be78877.jpg (http://s1014.photobucket.com/user/gulalastbilen/media/IMG_0217_zps6be78877.jpg.html)
http://i1014.photobucket.com/albums/af270/gulalastbilen/IMG_0219_zps97acce1f.jpg (http://s1014.photobucket.com/user/gulalastbilen/media/IMG_0219_zps97acce1f.jpg.html)

/Dan

[DADSGARAGE]

Metal origami, That's a neat way to build!

Cheer's, Neil.

Metal origami...lol...never thought of it like that before...but your right, thats kinda what it is :D

[DADSGARAGE]

To me it looks like you have got the correct speed, to often models are runned to fast:cop:!

Very nice model you are making, interesting way of solving the ribs on body!
A tripple 7 have always been a favorite for future modeling project, did find a 2nd hand model in 1/87 from CCM yesterday, can be useful for reference.

/Dan

Thanks Dan glad you like it.......having a die cast model would be very helpful..having some actual drawings to work from would be even better!! :)

[DADSGARAGE]

Fuel tank pics...same type of "origami" ;)

The top and inside of the tanks will have cover plates to access and install switches etc ( may put a sound system in one tank later on)


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0318_zps9b87d4f0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0318_zps9b87d4f0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0331_zpsed024672.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0331_zpsed024672.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0332_zps12f316e0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0332_zps12f316e0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0333_zpscba1244c.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0333_zpscba1244c.jpg.html)

[Lil Giants]

How well would your waterjet cut plastic styrene?

A 4x8 sheet of .100 might be cheaper than steel.

If this trk is 80-90lbs when finished, then add another 50-60lbs of dirt to haul... that lil banebot motor might just aint gonna do it?! :eek:

A tube axle with a banebot motor in each side to direct drive each wheel... hook both motors to a Sabertooth dual esc, with the mix on & the steering lead Y'd with the steering servo lead, that might work better than a differential itself & give you tonnes of grunt! ;)

[doodlebug]

Hey Joe, yes you can cut plastic on a waterjet, it's cheaper than cutting aluminum or steel!

Cheer's, Neil.

[modelman]

A tube axle with a banebot motor in each side to direct drive each wheel... hook both motors to a Sabertooth dual esc, with the mix on & the steering lead Y'd with the steering servo lead, that might work better than a differential itself & give you tonnes of grunt! ;)

Joe-I had the dual motor setup in the wheels on my 777. I tried the mixing and it decreased the turning radius by 5" but it would not work in reverse. The wheels would just lock up. Maybe I was doing something wrong but I couldn't make it work. Just thought I would pass this along.

[Lil Giants]

You were using a Sabertooth esc too Tom?

I wasn't referring to mix in the radio programming, just let the Sabertooth do it's own thing... I've never tried it either, understanding how the Sabertooth works, in theory it should work.

[modelman]

Yes joe-I was using the sabertooth dual esc. I didn't use the trans. I just flipped the switch to mixing and it worked great going forward but if I tried backing up when I let off the throttle the rear wheels would lock.

[modelman]

Joe-what I meant to say was that I did not use the transmitter for programming. Maybe that is where I went wrong.

[Lil Giants]

You didn't make a mistake Tom, you are right. A Sabertooth does the opposite travel in reverse direction, so it would not work as a differential in reverse. On a tracked machine, turning tx stick rht, turns the model rht by speeding up left track/slowing down right track (clockwise rotation), but with reverse travel the left track slows down/right track speeds up to continue turning model clockwise.

However, the Servonaut dual esc with its mixer on would maintain the same arc for/rev, so it would be ideal dual esc to make a functional differential between two motors in a tube axle... although I'm not sure if Servonaut has multiple dual escs with the higher amp ratings.

Leimbach's dual esc is the same as the Servonaut, and being that I have a couple of them in the Stahl tracked equip & a couple of other tracked equip running Sabertooth, it can be mentally confusing to run each model fluently... almost everything is Sabertooth now to keep the function the same for every model.

The only thing that would be necessary for radio programming with the Servonaut is limiting the servo travel % of the ch associated with the Servonaut's steering to + -50 b/c greater than that will make inside motor while turning try to rotate opposite direction.

That's why I like the Sabertooth in tracked equip (especially track loaders), you can spin the tracks on its axis without any for/rev travel.

[DADSGARAGE]

How well would your waterjet cut plastic styrene?

A 4x8 sheet of .100 might be cheaper than steel.

If this trk is 80-90lbs when finished, then add another 50-60lbs of dirt to haul... that lil banebot motor might just aint gonna do it?! :eek:

A tube axle with a banebot motor in each side to direct drive each wheel... hook both motors to a Sabertooth dual esc, with the mix on & the steering lead Y'd with the steering servo lead, that might work better than a differential itself & give you tonnes of grunt! ;)

The waterjet can cut plastics and many other things like alm.,stainless,tool steel,marble,granite,wood,acrylic,rubber etc etc...not much it can't cut...

http://waterjets.org/index.php?option=com_content&task=category&sectionid=4&id=46&Itemid=53

Not sure on the cost for a sheet of styrene but a sheet of 12ga(.105") hot roll steel is about 100.00 CAN$

The little banebots motor/gear box could be a weakness in this build, even though is is small it has huge power...about 50 ft-lbs of torque with the 540 motor (yes 50 foot pounds) Banebots suggest limiting the torque to 35 ft-lbs but I will use it without a slip clutch for now. I will be adding an outer bearing to the output shaft to help support the load, which will help solve one possible problem and time will tell how the gears in the box will hold up under that much torque......

http://banebots.com/pc/P60K-S5/P60K-4444-0004

I did consider using two motors in the rear axle housing/tube much the same way as "modelman" used in his 777 truck which is a great idea!! Just couldn't find anything that would fit and be able to support the load at the same time.

Here is a useful tool for calculating motor /torque sizing....

http://www.robotshop.com/blog/en/drive-motor-sizing-tool-9698

[DADSGARAGE]

Still trying to solve the tire problem....getting the tires foam filled up here just isn't going to happen....too bad because it would be a good solution to eliminate using the tubes and seeing the valve stems. Soooo I have decided to use the tubes in the front and inside rear tires and have the valve stems toward the inside, the problem is that the outer rears tires on the duals will not look the same as the air filled inside tires...what to do?? The simple and somewhat funny solution might be to use "racquetballs" to take up the space and hold the tire to the rim.....this is either really simple or really stupid...lol...but I'm going to try it and see how it works??!!:D

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0334_zps38b8f5f5.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0334_zps38b8f5f5.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0335_zps2194f7e0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0335_zps2194f7e0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0336_zps4ef33c56.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0336_zps4ef33c56.jpg.html)

[Izzy]

Kool idea!

[doodlebug]

Have you considered "beadlock's" and making the tire's tubeless?? silicone the 2 halves (rims) together. Weld up the big holes and use smaller short valvestem on the inside. Run a hose between the inner and outer tires.
Yah, more stuff to make you scratch yer head.
Never thought about racket ball's? let us know how they work.
Cheer's, Neil.

[RCP57]

Cool idea. I have seen guys use tennis balls in Honda 50 tires before. I could make a comment on the color of well, you know:rolleyes: but I wouldn't want anyone to be offended...

[DADSGARAGE]

Cool idea. I have seen guys use tennis balls in Honda 50 tires before. I could make a comment on the color of well, you know:rolleyes: but I wouldn't want anyone to be offended...

Time will tell how well it will work.....and yes they are blue...:lol:

[Fired up]

Some times we just can't find the right product to fill our needs. That's when we need to think out side the box cool idea

[DADSGARAGE]

Have you considered "beadlock's" and making the tire's tubeless?? silicone the 2 halves (rims) together. Weld up the big holes and use smaller short valvestem on the inside. Run a hose between the inner and outer tires.
Yah, more stuff to make you scratch yer head.
Never thought about racket ball's? let us know how they work.
Cheer's, Neil.

Funny you should mention bead locks....tryed that...kinda....I cut some UHMW plastic spacers to help hold the tires to the rims, originally I hoped the tires alone would be enough to hold the weight but the side walls of these cheap tires are just too thin...:(

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0337_zps6c005b87.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0337_zps6c005b87.jpg.html)

[DADSGARAGE]

Some times we just can't find the right product to fill our needs. That's when we need to think out side the box cool idea

Thanks....it's hard to believe how well they fit in these tires, almost like they were made for it...I also thought of getting some rubber fuel line and rolling it in the tire to fill the space and help hold it in place. Finding a simple solution to a problem can be challenge....and then when you find the solution you almost can't believe how simple it is and then you wonder why it was so hard to figure out!!??:)

[doodlebug]

Well I confused beadlocks with screwing the tire to the rim :mad::mad::mad:, what about a backup ring inside the tire bead to take the screws? Yah blue balls are simpler :p:p:p they're the right color for being overloaded :lol::lol::lol:

If I understood customs a little better, I would offer to send the tire's into get
"stuffed"

Cheer's, Neil.

[RCP57]

Hahaha! Good one Neil!

[doodlebug]

Hahaha! Good one Neil!

:lol::lol::lol::lol:
Thanks Reg :D

[DADSGARAGE]

You be funny guys....:p

(Thanks Reg...see what you started with the blue balls!!!?? :cop::lol: stop spending so much time in the shop......:cop::D:D)

[RCP57]

Haha! I've been told that I am a bad influence before....

[DADSGARAGE]

Haha! I've been told that I am a bad influence before....

I can't stop laughing at the comments you knuckle heads come up with:lol:
(guess the color blue shows how dedicated we can get to this hobby....:))

[doodlebug]

Guilty as charged :cop::lol::eek:
Cheer's, Neil.

[DADSGARAGE]

Well I confused beadlocks with screwing the tire to the rim :mad::mad::mad:, what about a backup ring inside the tire bead to take the screws? Yah blue balls are simpler :p:p:p they're the right color for being overloaded :lol::lol::lol:

If I understood customs a little better, I would offer to send the tire's into get
"stuffed"

Cheer's, Neil.

You might be right about the color....being overloaded...:lol::lol:

The spacers I cut from plastic are not a true beadlock......just a way of keeping the tire in contact with the rim...originally I had hoped the tires alone would be enough to carry the load without the air filled tubes but the side walls are too thin....so being that I will only have tubes on the inside tires on the rear duals I needed to make the outside tires look the same somehow (the air filled tires are taller)....and the racquetballs seem to be a way to solve the problem....hope this makes sense......

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0338_zps9fafc528.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0338_zps9fafc528.jpg.html)

[JAMMER]

That is a very nice idea. You can't just leave the air pressure low in both tires it would seem they would squat with a load in them if the pressure was low in both tires. Just an idea. You are doing a great job on the build and it will be heavy. Ed

[DADSGARAGE]

Thanks Jammer.....using air filled tubes on all six tires would be good, the problem is in hiding the valve stem on the rear outside tire....rather not see a valve stem on the outside....the rims are two pcs and must be mounted before adding air, and there is no room to get at the valve stem between the duals if I put the valve stem toward the inside between the duals....hopefully the "racquetballs" will work instead of a tubes on the outside duals, time will tell......

[DADSGARAGE]

Cut a few more parts......

- the mount plate for the two ESC's (one for the drive motor and one for the linear actuator to lift the box)

- bearing support parts for the 1/2" output shaft on the gear box


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0341_zps4f1a883e.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0341_zps4f1a883e.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0343_zpsd281cfaa.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0343_zpsd281cfaa.jpg.html)

[steamer]

You might try Canadian Tire and get a valve stem extender. Then you can drill another hole in the inside rim to bring it through the back. They make them a million different ways for every need.
Cheers Rob

https://www.google.ca/?gws_rd=cr&ei=esncUpPVFtTDoASAlICYDw#q=valve+stem+extenders

[flatdeck]

You can also try a RV dealer they will have a assortment of valve steam extension also..

Wayne

[modelman]

Looks good-what is the purpose of the gear next to the sprocket on the drive motor? I saw this on the pictures of the sprocket when you were making them and didn't understand but thought it would make sense later, but I still don't get it. :confused:

[DADSGARAGE]

Looks good-what is the purpose of the gear next to the sprocket on the drive motor? I saw this on the pictures of the sprocket when you were making them and didn't understand but thought it would make sense later, but I still don't get it. :confused:

What looks like a gear is atcually part of the sprocket....originally I didn't order the right sprockets and I didn't want to wait 2 weeks for new ones to show up so I cut some test sprockets from solid 5/8" thick material with the profile of the sprocket c/w 1/2" bore and 1/8" key way.....then I used a parting tool to cut the groove in it to create some space for the chain links, and then drilled and tapped the hole for the set screw.....the hard way to make a sprocket....I could have machined off the remaining portion of the sprocket profile to clean it up...I just didn't....once the gearing is right I may buy the proper sprocket.


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0344_zps54b702a1.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0344_zps54b702a1.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0345_zps96cf910a.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0345_zps96cf910a.jpg.html)

[DADSGARAGE]

Does anyone have any experience with this smoke generator???

[DADSGARAGE]

Does anyone have any experience with this smoke generator???

OOPS!!.....try again...

http://www.harbormodels.com/site08/main_pages/smoker.htm

Thinking of adding it to the truck later on.....
(Wish it was black smoke....white smoke from a diesel is usually a bad sign...:eek:.....)

[DADSGARAGE]

Added a cover/grill over the area behind the motor...

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0355_zps515081ec.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0355_zps515081ec.jpg.html)


Finally made a proper bushing for the steering.....also moved the servo up with spacers which moved the steering assy. about a 1/4" closer to the bottom of the truck.....

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0359_zps75d75606.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0359_zps75d75606.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0360_zpse047d4a0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0360_zpse047d4a0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0365_zps83a293dd.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0365_zps83a293dd.jpg.html)

[JAMMER]

How are you doing? Once again a very nice job. It won't belong now will it before you are going to be carry a load? Like they say all good things take time. Ed

[DADSGARAGE]

How are you doing? Once again a very nice job. It won't belong now will it before you are going to be carry a load? Like they say all good things take time. Ed

Thanks again....all the small little things that need to be done all take time, longer than a person thinks..lol..but for the most part I think all the little stuff is done at this point, so I hope to get started at all the welding etc in the next few days....

[DADSGARAGE]

I also made some simple covers for the front wheels...shortened up some 1" copper pipe caps and soldered them to the cover plate....should look OK...;)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0372_zps4c1c1e84.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0372_zps4c1c1e84.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0373_zps37128f1a.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0373_zps37128f1a.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0374_zps25e52aa6.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0374_zps25e52aa6.jpg.html)

[DADSGARAGE]

Finished machining the front hub and axle.....and get to see what the cover looks like installed on the rim....works for me:)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0393_zpse58b0c26.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0393_zpse58b0c26.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0392_zpsb406f262.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0392_zpsb406f262.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0389_zps8ab1143d.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0389_zps8ab1143d.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0375_zpsee193746.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0375_zpsee193746.jpg.html)

[RCP57]

Coming right along! Must be almost ready for paint:confused:.

[DADSGARAGE]

Coming right along! Must be almost ready for paint:confused:.

Not yet, need to weld everything and finish all the little things that never got done before....

[DADSGARAGE]

Speaking of all the little thing....made the proper motor mount from 1/4" Alm. which places the motor/gear box at the proper angle, also cut new side covers from 16ga Alm.

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0384_zpsb0d56ab3.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0384_zpsb0d56ab3.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0379_zpsb7ba23c0.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0379_zpsb7ba23c0.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0396_zps62a73a30.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0396_zps62a73a30.jpg.html)

[RCP57]

Aluminum? That light weight cr@p????:rolleyes:

Looks good! Get that MIG warmed up!..cheater...

[Trucker_Jo]

Hey now reg, people like me are just starting out on MIG :lol: Jokes aside the build is so clean and professional looking! Again good job:cool: I can't wait to get my dune buggy done so I can get back to modeling!

[DADSGARAGE]

Started the long process of welding,grinding and sanding......got the tanks done...slowly getting things done:jump:

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0385_zps7590ac4c.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0385_zps7590ac4c.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0386_zpsd8cb2442.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0386_zpsd8cb2442.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0399_zpsc574d5cf.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0399_zpsc574d5cf.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0402_zps9c6e907b.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0402_zps9c6e907b.jpg.html)

[RCP57]

Looks beautiful man!

[DADSGARAGE]

Aluminum? That light weight cr@p????:rolleyes:

Looks good! Get that MIG warmed up!..cheater...

Haha.....(cheater??:p)

I may considering cutting a new frame from 1/2" Alm. later on to get rid of a few pounds...

(actually thinking of making another 777 truck to pull a belly dump trailer and or a heavy trailer to haul the D11 and the future face shovel around...that is once I get it built...LOL...)

[DADSGARAGE]

Hey now reg, people like me are just starting out on MIG :lol: Jokes aside the build is so clean and professional looking! Again good job:cool: I can't wait to get my dune buggy done so I can get back to modeling!

Thanks.....I can't build stuff to scale so the next best thing is to make it look about right and keep it clean.....thanks again!!

I wish I could tig weld like Reg...actually I wish I could just weld period!! :lol:

[RCP57]

Thanks.....I can't build stuff to scale so the next best thing is to make it look about right and keep it clean.....thanks again!!

I wish I could tig weld like Reg...actually I wish I could just weld period!! :lol:

Nobody wants to TIG weld like me...I have a lot of room left for improvement trust me!

[DADSGARAGE]

Thought I was done with all the small stuff....not.....:(

Made the covers for the front struts, cut from .010" SS shim stock.

Also made the top cap to cover the shaft...used some brass and a 3/4" copper pipe cap....still need to solder it together....


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0410_zps9e2472b4.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0410_zps9e2472b4.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0403_zpsa583eed7.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0403_zpsa583eed7.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0405_zps9462b459.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0405_zps9462b459.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0416_zps0a0a0afc.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0416_zps0a0a0afc.jpg.html)

[DADSGARAGE]

Made the box pivot pins.....again still needs to be soldered together....


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0411_zps05cbdeca.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0411_zps05cbdeca.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0412_zps6336f861.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0412_zps6336f861.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0413_zpsf2cc1b2e.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0413_zpsf2cc1b2e.jpg.html)

[DADSGARAGE]

More welding and sanding....
-Cab
-Top deck
-Grill box

Mounted the side deck beside the cab and the hand railing....still need to solder one ladder together....


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0419_zpseb406193.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0419_zpseb406193.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0421_zps2a598fc3.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0421_zps2a598fc3.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0422_zps25bd61ea.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0422_zps25bd61ea.jpg.html)

Thanks for looking!!!

Hopefully some of the pics of this simple model will give you some ideas for your next build...hopefully!! :)

KP

[edwalsh18]

Haha.....(cheater??:p)

I may considering cutting a new frame from 1/2" Alm. later on to get rid of a few pounds...

(actually thinking of making another 777 truck to pull a belly dump trailer and or a heavy trailer to haul the D11 and the future face shovel around...that is once I get it built...LOL...)


Looking great! good job so far and thanks for posting up your build/sharing! I have been watching your vids on youtube since you posted your first couple dozer vids!! glad you made it over here to this site.

hey is it not possible for you to make the dump bed removable and have a fifth wheel type deal that can be attached/removed also to haul trailer/belly dump?

what you are doing is great, i am still wanting to get something built a lot like what you got going. just a matter of priorities... time and money... So, if you could keep the posts and videos coming it would be greatly appreciated! it really helps to see other ideas

[Lil Giants]

Hopefully some of the pics of this simple model will give you some ideas for your next build...hopefully!! :)

KP

Seeing what you're creating from the use of a waterjet table vs the usual cnc works is quite amazing! What's the ballpark $figure for such a tool?

[ihbuilder]

Seeing what you're creating from the use of a waterjet table vs the usual cnc works is quite amazing! What's the ballpark $figure for such a tool?

Joe , starting in the $40K range

Great work

[JAMMER]

You have a lot of nice ideas when it comes to making parts and details. You are moving along nicely soon you will be hauling dirt keep up the good work. Ed

[ihbuilder]

Dads , how well does that H2O jet cut gear teeth ?

777 looks great so far :cool:

[DADSGARAGE]

Seeing what you're creating from the use of a waterjet table vs the usual cnc works is quite amazing! What's the ballpark $figure for such a tool?

An "OMAX" 55100 waterjet table retails for about 200K US$

Dads , how well does that H2O jet cut gear teeth ?

777 looks great so far :cool:

The waterjet does a great job cutting "straight" gear teeth profiles , all the gears I have cut have been used "as is" after cutting on the table short of doing some filing, but if you needed a high precision gear it would be best to cut the gear blank slightly bigger and then use the proper gear cutter to finish it...

Thanks !!

[DADSGARAGE]

Got the radio gear installed :cool:......finally :o.....hope to have a video posted soon of the test run

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0428_zpsad23e7ea.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0428_zpsad23e7ea.jpg.html)


Need to finish welding the box frame and then add the box panels....floor sides etc...

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0432_zps56bea442.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0432_zps56bea442.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0433_zps6297a867.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0433_zps6297a867.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0434_zps5715a3e5.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0434_zps5715a3e5.jpg.html)

[DADSGARAGE]

TEST RUN VIDEO

https://www.youtube.com/watch?v=tzh2qfPRx5E&feature=c4-overview&list=UUwrKPoW2ScnElm7fYjN3bEA

[Lil Giants]

Well almost done, eh? Weld up the box, give it a coat of paint & you're off to the races! :D


An "OMAX" 55100 waterjet table retails for about 200K US$

:eek: :jaw: Lucky you! my combine costs nearly triple that, but I don't get to use it for my hobby too. :( :p

[dirtpusher9]

Well that should carry a LOAD. Great work.

[pigeonfarmboy]

This thing is so awesome! Love how slow the steering operates! The bucket needs bump stops it's so fast haha.

[DADSGARAGE]

Thanks for the comments guys.....it's always fun to actually see a project come to life for the first time while doing some testing, a person finally gets to see if all the time and effort was worth it, even if somethings may not go/work as planned...so far the truck seems to be working fairly well, but I have already found a few small things that will need to be changed.....

I welded the panels in the box today, still need to grind/sand all the plug welds off and finish a bit more welding but for now it's good enough for some testing....really want to see how this thing will carry a load...

Here is the LOAD TEST VIDEO

http://www.youtube.com/watch?v=F4nfF8Zon3w&list=UUwrKPoW2ScnElm7fYjN3bEA&feature=c4-overview

Steering still seems alright (look for the front tire marks on the floor:lol:) but the actuator is really working hard to lift the "110lbs load" of sand....but it did manage to lift it:cool:

[Hofabooz]

Hi

Looking great and what a great load capacity.
What would it's load capability be if scaled up to life size, just curious ?
great work cannot wait to see it in paint finished and then used in anger.

Thanks for posting.

Regards
Mark

[titandigs]

Hey Kordell,
Great to see it running, you must be very happy.
What size is the Honda? in the back ground?

[crawler07]

I was so worried you would run into your atv and damage something (on the atv) LOL
Amazing work! What was the weight on your first load their?

[9W Monighan]

That truck would fit right with our RC strip mining operations. Too bad you live so far away.

[DADSGARAGE]

Hi

Looking great and what a great load capacity.
What would it's load capability be if scaled up to life size, just curious ?
great work cannot wait to see it in paint finished and then used in anger.

Thanks for posting.

Regards
Mark

Thanks.....a 777 truck is rated for 100 tons, so if I did the math right the scale load would be around 127 lbs.....(220,000lbs / 12 /12 /12 = 127.3lbs)


Hey Kordell,
Great to see it running, you must be very happy.
What size is the Honda? in the back ground?

Yes very happy to see it working even if it isn't finished:D
It is a Honda ES350

I was so worried you would run into your atv and damage something (on the atv) LOL
Amazing work! What was the weight on your first load their?

LOL....I though I was going to hit it too...LOL...glad I didn't hit it or the garage door....would have wiped out the side deck and railing...might have ripped a tire off the ATV :lol:

The load on the truck was about 110 lbs.....

[Fired up]

wow looks and works great

[FlyingBeagle]

Wow, Just awesome. That truck truly is a beast.

How did the suspension handle the load. Was it bottomed out, or is there still some travel remaining. What about the drive motor, Do you think it will be able to handle much of a grade. I am sure Joe would love to know if it could make it up his basement ramps to the window outside.:D:D:D

[Markus K.]

That's an awesome and really beautyful work! Thumbs up!

Markus

[Espeefan]

Wow! The Cat 777 is looking better than ever! I can't believe how nice all of the seams look, after you've welded them up. Must have taken a lot of time to get the seams so smooth and perfect. Lots of sanding by hand?

[DADSGARAGE]

wow looks and works great

Thanks!!!

Wow, Just awesome. That truck truly is a beast.

How did the suspension handle the load. Was it bottomed out, or is there still some travel remaining. What about the drive motor, Do you think it will be able to handle much of a grade. I am sure Joe would love to know if it could make it up his basement ramps to the window outside.:D:D:D

Thanks.....surprisingly there was still some more suspension travel but not much...about 1/4" in front and about 3/8" in the rear...I would say that a load of 110 lbs would be the max for the suspension....can the motor pull that much load up an incline??? Not sure...sounds like a reason to make another video and see what it can do or find out what it can't do!!:D
I think Joe's ramps are a bit too narrow for this truck...and he would need a bigger "window" to drive out...LOL

That's an awesome and really beautyful work! Thumbs up!

Markus

Thnaks glad you like it....keep up the great work on your build!!!

Wow! The Cat 777 is looking better than ever! I can't believe how nice all of the seams look, after you've welded them up. Must have taken a lot of time to get the seams so smooth and perfect. Lots of sanding by hand?

Thanks...it is looking more like the real deal all the time...welding all the seams without warping everything takes some time but sanding all the welds takes even more time, used "Walter" spin on sanding discs to blend all the joints and a table top belt sander from Canadian Tire to help get it all straight.....no hand sanding yet...that will be after using body filler...fun fun...not!!;)
http://www.walter.com/Walter/en-ca/abrasives/blending-abrasives/angle-grinders-steel-stainless/enduro-flex-spin-on

[RCKiwi]

Everything about this dumper is the business! Way tough enough with bags of detail to boot! I've enjoyed watching this beasty evolve.
Congrat's!
Glenn

[od jhon deer]

u said u was having trouble with tires holding up the weight if they r air filled put more air in them if u thank the tubes wont hole and start leaking braze the middle of the 2 rim halfs together r u can try that spray foam in a can u get at hardware stores for sealing cracks in the house spray it in let it set up trim off excess put rims back together that stuff sets up pretty hard at least ways that is just a suggestion if u don't want to use air but those tires with air should hold just fine with more in them I have some like them and I have a 3 hundred lb toll chest on there no problem just a thought

[DADSGARAGE]

Made a short video...

LOADED INCLINE TEST VIDEO (6 degree incline)

http://www.youtube.com/watch?v=dXzfv0XzLL4&feature=c4-overview&list=UUwrKPoW2ScnElm7fYjN3bEA

[Lil Giants]

So have you got a protractor handy? Would it be 5°?

Doesn't seem to struggle at all, eh?

[Trucker_Jo]

Looks like that has plenty of power for those open pit mines your going to be digging once you get that shovel built :rolleyes: I'm suprised that those boards didn't break under the weight of that machine :lol:

[DADSGARAGE]

So have you got a protractor handy? Would it be 5°?

Doesn't seem to struggle at all, eh?

I placed a "magnetic angle finder" on one of the 2x4 and read about 6°, that little motor gear box puts out a huge amount of power....and it will hold the truck from moving on the incline....time will tell how long it will last before it tears itself apart???:D

Looks like that has plenty of power for those open pit mines your going to be digging once you get that shovel built :rolleyes: I'm suprised that those boards didn't break under the weight of that machine :lol:

It does have plenty of power considering how small the "Banebots" motor/gear box is....but again time will tell how long it will stay together, I could see the last set of planetary gears getting damaged using it to this extreme....surprisingly the 2x4 boards actually didn't even bend much with that much weight on them, I put my weight on them first just to be sure they would be OK...I was hopeing to see them bend more on the video...LOL...the total weight of the truck and load is about 215lbs, now that I finished lining the box the finished truck weighs a back breaking 105lbs :o OUCH !!! (Someone should have used Alm. instead of steel...LOL...yikes its a tank not a truck!!:lol:)

[FlyingBeagle]

WOW, that is heavy. Glad to see the motor has plenty of grunt for moving this behemoth around. I cant wait to see all the upcoming videos of this truck lumbering out of your mine. Slap some paint on her and get to building the shovel. Summer is coming and you have an audience eagerly awaiting the show.:D:D:D

[Lil Giants]

....time will tell how long it will last before it tears itself apart???:)

Easy on the throttle control with no sudden starts or stops, the gearbox should last a long time. ;)

[DADSGARAGE]

Took a few pics of the 777 next to the D11...never realized how big a D11 is compared to a 777....both models are based on being 1/12 scale or at least they should be, is a D11 really that big compared to a 777 or is there something wrong with my scale of the two models??
(the blade on the dozer is just under 21" wide)


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0465_zps8f61a25f.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0465_zps8f61a25f.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0461_zpsb6e80c31.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0461_zpsb6e80c31.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0458_zps3cbb314a.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0458_zps3cbb314a.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0463_zpsb5d4cfda.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0463_zpsb5d4cfda.jpg.html)

[DADSGARAGE]

Also took a few pics of the 777 compared to the plywood version of the PC1250....looking for input from you guys....not sure about building a PC1250 or something a bit bigger like a PC3000 in a face/front shovel set up....so looking at the pics do you think a PC1250 is a good size to go with the 777 truck or should the shovel be bigger?? Really would appreciate all your input here!!


http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0470_zps8c31cd1d.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0470_zps8c31cd1d.jpg.html)

http://i1291.photobucket.com/albums/b546/DADSGARAGE/IMG_0471_zps9ff8bce6.jpg (http://s1291.photobucket.com/user/DADSGARAGE/media/IMG_0471_zps9ff8bce6.jpg.html)

[RCP57]

Awesome!!!!!!!!!!!!

That looks like a good match in size but you know what I would lean toward...:jaw:

[doodlebug]

Well if you want to listen to the industry expert's, 3 to 5 scoops per truckload. But build what makes you happy!:bounce::bounce::bounce:
I'm used to 22 scoops from my skidsteer to 12 wheeler dump for a full load. Don't ask me how many scoops for my mini x, never counted!
So my advice goes with a grain of salt :lol::lol::lol::lol:
Cheer's, Neil.

[Bo Wallen]

Hmmmm You got a 777 and d11 go big Pc 3000 is my vote.
The fleet you got is just AWESOME.
Bo

[porky69]

For loading our 777's and 785's at work we use Komatsu 800, 1800 or 2000 if we are using excavators.

[doodlebug]

For loading our 777's and 785's at work we use Komatsu 800, 1800 or 2000 if we are using excavators.

Hey Porky, do you have any work pictures to share? Welcome aboard!
Cheer's, Neil.

[modelman]

I think the shovel looks a bit small. I looked at some videos of various machines loading 777 trucks and the PC-2000 looks like a nice fit. Possibly the 3000 but that is a really large machine. I found an 8000 front face shovel which looked like a nice size but there were no comparison pictures to the truck. Most of the hoe's are sitting up on a ledge probably 3-5' above the truck and that changes the perspective a lot. I'm sure you can get it right. Looking forward to a face shovel build since I don't think anyone has done that yet.