Let The Build Begin!

[Trucker47]

Well I am finally getting around to building my first piece of construction equipment, and even better; it is my shop class project for the year! I started designing it early May 2011 and after a few versions, screw ups, long nights and errors I have finally got the design finished! I roughly based it off a CAT 930H to get the general shape right:

http://www.usateq.com/images/inv2499big.jpg

I did change some aspects of the design for RC convenience and if push comes to shove there will be no copy write infringement. But it is roughly 12:5 scale +/- 10mm. Each wheel will be independently driven by a planetary gearhead motor and all motors will be driven by a Sabertooth 12RC ESC rated at 25A Peak. The hydraulic system will be powered by a RC4WD 4200XL Pump, I will be making the cylinders and Bi-directional Spool valves and the hose will be from a place in Germany. It will be approx. 60cm long with the boom parallel to the ground , 20cm wide and weigh in at about 23-25lbs. For most of the construction I will be using 6061 Plate aluminium, Standard Carbon Steel, 7075 Aluminium for the boom, and a little bit of styrene here and there. The model will have approximately 350 parts, welded, brazed and bolted together/ I luckily will have full access to a Tormach PCNC 1100 that our school just bought and luckily :cool: I am the only one who currently knows how to run it :D so my teacher has basically given me full access as long as i don't ruin the new machine. I hope to have the model some what perfect but with it being my first construction model i'll try to keep my hopes a little lower. I think I've got most things figured out but I'm sure I am going to learn lots. One question I have is how big of hydraulic fluid reservoir should I have? Anyways here's a few renders of my design:



Version 2:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/GR12CAT930Hpainted.jpg

I liked it but it was WAY to wide (30cm!!!) and to short (50cm) to be scale.

Version 3:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/CAT930H.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/WheelLoaderDarkRender.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/LineDrawingCAT930.jpg

Bi-directional Spool Valve - Servo Operated:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/SpoolValve.png

-Chris

[mazdaparts]

Looks good, is the underhood area big enough for the pump and motor and valves?

[Trucker47]

Thanks, yea the area under the hood was designed to have pretty of room for a 540 sized pump motor, 2/3 spool valves, dual esc's reciever and room for lights modules, PMW switches, and much more. Heres a picture of it:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/ScreenShotRearEnd.jpg

All the parts in there are the exact size from there dimensions sheet.

And i added some mirrors, grab handles, fire extinguishers and reworked the bucket linkage and quick release bucket.

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/WheelLoaderNiceRender.jpg

Chris

[ihbuilder]

looks good Chris ;) I wish I had a shop like that when I went to school :( . I see 1 issue , how long is your servo arm for the steering ? IDK what your using for a servo , but you loose torque the farther away from the servo you go .

[Izzy]

nice CAD work - inventor or solid works?

[Trucker47]

Thanks everybody!

ihbuilder - Yes having a shop like this is nice but there is a big downfall it it all. About 2/3 years ago the school district thought they had a surplus in funding so all the schools in my district spent lots of money. Then when the spending was done they readlized that they never had the money to begin with so now our district is in $11.2million debt :eek: So we got a nice mill out of it but we got stuck with terrible lathes :( Thanks for letting me know about the torque issue i never really thought about it. Ill go back in the design and see what i can do.

Izzy - I'm using Solidworks 2010 with the in-software rendering software

Chris

[Trucker47]

Well I was able to get in the shop for 3hr's between a math test and physics test :) and i started on a hydraulic cylinder for the bucket tilt. I have only done the roughing passes and have not honed the cylinder or cleaned up the outside. Heres some pics of today's work.

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5821.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5822.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5823.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5824.jpg

*still needs to be parted off stock
http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5825.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5827.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5828.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5829.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5831.jpg

Any comments would be greatly appreciated as i only kinda know what i'm doing with the hydraulics. ;)

Chris

[ihbuilder]

Chris , you can use 2 servos , 1 on each side y'd together . But , you have to mount 1 reverse of the other . solidworks looks nice , I'll have to try it sometime ;) I did try Autocad2012 :D but my cam dosen't support it ( to new :confused:) and runs 5-6000.00 usd :(

[Lil Giants]

You're installing hyds anyway, why wouldn't you make the steering hyd too? :confused:

And with a motor at each wheel, that's almost like two locked axles, it'll take alot of power to steer. Hyds is way smoother action & stronger. 9mm bore with 2mm plumbing, it'll steer plenty quick & save you alot space.

Make your cyl housings from brass, then you can solder most of it together & bolt the rod cap on to change seals when a leak develops. Are your pushrods stainless steel?

12mm bores for loader/bucket & 9mm for steering, 2mm plumbing throughout & belt drive with reduction between your pump & motor... should be quite a hardy working loader. :cool:

[Trucker47]

ihbuilder - thanks for the idea! I think im gonna bo with Lil Giants idea and run another valve and some cylinders versus a servo. I think from what you guys have told me it will be better off. Yea solidworks is awesome and the student discount is even better!! $150 :D. What CAM software are you using? Is there a plug-in available for it? When i first got my cam program i was having all sorts of problems even to where i couldn't import a part :confused: then i got the Solidworks Plugin and i have not had a problem yet :D :D

Lil Giants - I originally didn't run hydro's because i didn't know how easy or hard the valves where gonna be to machine but for one reason or another i never really thought about the torque needed to turn this machine (brain fart :confused: ) Okay i'll if i can get some brass tomorrow when i head to out local metal shop. Right now they are 1/4in carbon steel as that is all i had. When i get near completion i think i will get some stainless but for now ill settle with this steel so if i ruin a shaft by accident i can just go grab another piece. Any recommendation on a reduction rate? I am planning on running the same hydro pump as the RC4WD 4200xl Earth digger and the same motor it has.

Thanks for the advice I really appreciate it as I don't exactly know how to make these hydraulics work perfectly :o Just one more question though how much friction should there be for the shaft to move up and down? My piston seals seam to be very tight and im just wondering how tight is to tight?

Thanks!
Chris

[Lil Giants]

I was gonna try 2.5:1 belt reduction for my rc4wd motor/pump, I think that's what's in the 850. You fashion up the mounting plates with bearings on the pump shaft, get two sets of pulleys & belts to send me one. :D (ofcourse I'll pay you for your work, as well as parts)

Did you lubricate your seals before putting the cyl together? Lithium white grease is what I use, the grease will help to prevent any nicks to the seals during assembly. Should be a reasonable amount of resistance there, you want tight seal.

[Trucker47]

Okay I think I might try that out once I get my pump and motor using these http://www.robotmarketplace.com/products/timing_pulleys_fingertech.html

Yea if I can get some spare time and if it works out ill let you know.

I used some motor oil that we had in the shop but that's about it. But I got some brass today so ill start on some new cylinders. On my existing cylinder there is quite a bit or resistance but i guess ill just need the pump to test and see if it is to little or to much resistance.

Thanks!
Chris

[ihbuilder]

motor oil works too . there should be some resistance but you should not have to work up a sweat to move the ram in or out with a vise grip locking pliers . there's a formula or chart for figuring your o-ring grooves I'll have to look it up . I think it's in the machinery hand book . do you have 1 or access to 1 ?

[doodlebug]

Steve are these the chart's you where thinking of ? http://www.marcorubber.com/gd-directory.htm

Later, Neil.

[ihbuilder]

Steve are these the chart's you where thinking of ? http://www.marcorubber.com/gd-directory.htm

Later, Neil.

that should help him

[Lil Giants]

One example of a motor/pump mounting hardware.

http://www.vario-earthmovers.com/baubericht/hitachi-zaxis-870-teil-8.html

[Trucker47]

Thanks for the charts guys! those will come in lots of handy, as i'll have to admit i didn't really know what i was doing in the beginning. :confused:

Lil Giants - Thanks for the picture I should be getting my pump within a few weeks so I will keep you updated.


Just a little update, I got some 2.5" aluminium stock for some wheels and ordered some tires, some 2" aluminium stock for some axle cases and some 3/4" brass round stock for some hydraulics. As well as ordered some tires and taps so I can get back to work now that i've got an idea of what to do :D

-Chris

[Trucker47]

Some Pictures of today's work:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5838.jpghttp://i345.photobucket.com/albums/p398/trucker-47/IMG_5835.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_5833.jpg

Chris

[Trucker47]

Got a cylinder 90% done just need to attach the caps, drill mounting hole and attach the hydraulic lines.

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5840.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5841.jpg

Chris

Who can tell the radio in the back that i'll be using?
http://www.autonerdz.com/yabbfiles/Smilies/scratch-head02.gif

[Trucker47]

Update!

Well I was able to get some time on our bigger engine lathes and got some hubs made. They are now ready for the CNC to drill out the final mounting holes. They have a finished OD of 25mm, ID of 4mm and length of 15mm.

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5884.jpg
http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5886.jpg
http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5887.jpg

I was also able to test out turning steel :eek: Jeez is that ever harder than Brass or Aluminium (no pun intended) I started by making the rotator ring that the model will rivot/rotate upon.

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5888.jpg

Then I tried to make the spool for a valve. And thats where it all went bad, first i accidentally ran my tool into the chuck and snapped my carbide insert (luckily it was only the insert). Then our very high end lathes (1950's engine lathes that cannot even cut straight) slipped while grooving a slot for some o-ring and bent the spool :mad:.

So I said screw it and made one out of aluminium :p

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5890.jpg
http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5891.jpg

I am not really happy with it so I may remake it out of brass. Anyways I should be getting a pump soon so I should be starting to make something move by end of January!!

Also I just picked up some 16GA Hot Rolled sheet steel and will be running it through the mill to construct the rear of the chassis.

Here's an exploded view so you can get an idea of how many plates are just on the back:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/ExplodedView.jpg

-Chris

[Trucker47]

Update!

I got the CNC running yesterday after filing the dam coolant up :rolleyes: the tank is in the bottum of the enclosed stand our school build and i had to pour it through a 3/4'' hole through a 2sqft door. Not exactly the best design but it works. Anyways i got some plates cut out of the 16ga steel and started to tack weld the rear end together.

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5892.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5894.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5896.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5897.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5899.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5898.jpg

And a shot to show the size of the model:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5900.jpg

Should be a nice size, and will look good behind a semi as its only a few cm wider :D mabye a lowboy will be next. :D

Tonight i should be getting my tires and pump!! so hopfully in January when i get back to school you will see some nice machined wheels! This may be the last update for the year as my school closes on friday for Christmas and I am not to sure if the shops will be open or if we will be cleaning.

Thanks,
Chris

[Azonic]

Very nice progress, looking forward to see the wheels!

[russisloud]

nice work on the cylinder

[mog]

very nice work. one thing to think about when you are using AL for your spoos is that the oil and AL can have a negtive chemical reaction and make the oil really dark and a bit acid. but i don't think it a big problum just to let you know.

[Trucker47]

Thanks for the nice comments everybody!

mog - thanks for letting me know! I think I will be doing the majority of the system out of brass because of how easy it is to work with. And i can solder to it.

Also i got some parts in!!

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5912.jpg
http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5916.jpg
http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5914.jpg



Chris

[Trucker47]

CAD Update!

Finally got everything perfectly (I hope) designed on the axles. It was a real pain trying to have a motor connecting to a hub that passes through a brass pushing and finding a way to turn the set screw on the hub. And having it all fit in the diamater of the axle for looks :D (sounds really confusing so i can post a pic if you guys want) Heres a CAD render of the axle: (For those who haven't noticed, I love CAD! I can make tons of bad parts until I find the perfect design and it doesn't cost me money in wasted material!!)

Anyways heres the pic:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/Axle.jpg

Believe it or not one axle has 85 Parts in including the 54 bolts :blink: And that doesn't include the mounting hardware.

-Chris

[Lil Giants]

I don't seem to have the correct detail shot on file of how Stahl locks their wheels to the output shaft of the gearhead motors, hopefully this one will be sufficeint?

There's an approximate 2.5 or 3mm hole drilled through the gh motor shaft, inward about 5mm of the end for a 10mm length steel pin to pass through. You can see the slot in the wheel of the pic. The entire wheel slides past the hole on the gh output shaft so you can install the steel pin.

Pull the wheel outward to set the pin into the wheel & it's all held in place by bolting on the simulated planetary hub cover.

This is the best method I've ever seen of locking a wheel to a driveshaft, no chance of any set screw(s) coming loose. ;)

The TLT axles in my 6wd semies work on much the same as this principal, but have a big ugly nut showing.

http://img.photobucket.com/albums/v150/protrker/oct%2026%2007/IMG_1854.jpg

http://img.photobucket.com/albums/v150/protrker/oct%2026%2007/IMG_1864.jpg

[Trucker47]

Ah I see, looks like I may have to go back to the drawing board. My original design in the picture below uses a single set screw pushing onto a 4mm D shaft on the gear head. It is designed to support a heavy vertical load but I never really thought about how easy they would come off. Heres what Originally done:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/WheelDiagram.jpg

Basically a hub rides inside a brass bushing which is inside an aluminium axle end cap bolted to the axle case (not shown) to support vertical load and a single M3 set screw on the hub presses against the D-shaft.

Thanks for the pics! I'll start working on new design, mabye something build right into the rims :cool:

-Chris

[Trucker47]

Well that was nice and quick, rather than redo the whole mounting system I just put a 2mm hole running through the motor shaft and run a set screw with a step i believe its called. This will replace the original pressure fit set screw I originally had. Now it can take a heavy load without falling off! Thanks for the idea Lil Giants! I probably would of never changed it and had problems in the future. Now I just need this Christmas Break thing to hurry up so I can get back in the shop :p,

Chris

[Lil Giants]

Will that be a set screw with a long rod that will reach through into the other side of the hub for support on both sides of the motor shaft?

Something else while looking at your CAD from the vertical view... is your hub/wheel flush to the face of the gear head, as in a flat solid wall of material?

The reason why I ask is that there should be some recess area so dirt/sand is free to fall out of the inner wheel, and not cause any unnecessary wear or binding. I hope that makes sense.

[ihbuilder]

seeing that your using a bushing you want to avoid any dirt/dust getting in between the hub and bushing that could cause premature ware or binding . You prob. be OK with what Joe is saying depending how and where you will use it . for me , I would at least have some kind of seal or use a sealed stainless steel bearing with a space between for dirt/dust to fall through . OTOH , your doing a great job :) yes , cad is a great tool :D

[Trucker47]

New Years Update!

Since I don't have any access to a lathe or our mill during the christmas break I decided to get some parts together and start doing some styrene work. Wow i dont give enough credit to the guys who work with styrene to make beautiful bodies. My design was simple and straight forward yet i still had a heck of a time putting all the pieces together.. I also got the chuck of aluminium for the boom, it measures a whopping 30mm x 60mm x 250mm. I just hope it wont be to heavy. And i also got the wheel blanks cut out. Now i just need to face and center drill them, then they are off the the CNC and drill press. Any way, on to the pics:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5923.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5924.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5925.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5926.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5928.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5929.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5933.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5921.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5922.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5920.jpg

And since my old Digital caliper died i picked up a new one at KMS :D

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5918.jpg

Thanks for looking,
Chris

[RCP57]

Hey Chris, I didn't realize you were close by until you made the KMS comment. I'm guessing that you will have this done by the end of the school year so will you be able to join us at the truck show in Duncan this summer?

Keep up the good work!

Reg

[CustomClod]

Outstanding work! Cant wait to see this one done
Scott

[dirtpusher9]

That's coming along nicely Chris, looks as though your a natural at this hobby.

[bigTdozer]

Nice work and nice pump can't wait to see you loading some dirt

[Trucker47]

Thanks for the comments!

RCP57 - Yea I plan to be finished by June but I have got tons of work ahead of me. I'll have to see if I can make it out there as I need to work the summer for university in the fall.

I'll be back in the shop tomorrow and start on the wheels, I'll try to get an update up depending on how much i get done.

Chris

[RCTech9]

Very nice and clean build!

[Trucker47]

Thanks!

Well turns out the co-axial indicator i need to set my offsets for the mill hasn`t been ordered yet so I decided to get as much done on them as i could on the manual lathe. I was able to turn the final OD, drill the 4mm center hole, turn down the wheel lip and do a final finishing pass to clean it up and get all the final dimensions. Luckily I was able to turn them to within 0.4mm of my plans, which is pretty good considering how worn out our lathes are. For example the cross slide knob can be turned a full revolution before moving the actual table. :rolleyes: Each part took 30-40 mins to machine and I had to make 8 of em. So i was pretty busy in the shop!! Now they are really ready for the mill as they only need to be bored out and have the mounting holes drilled. We are going to try and get the co-axial indicator by next week so I hope to finish the rims next week. Anyways heres the pics:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5934.jpg

How they look until final machining:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5935.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5938.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5939.jpg

Thanks for lookin!
Chris

[pugs]

Looking good.

The tech college I went to, we had a bridgeport mill with 1/2 turn backlash in x and y handles. One of the required projects was an internal square pocket milled to +-0.0002" and it had to be done on that mill. Lots of guys struggled with that one, but it is doable. You learn how to work around the backlash.

[Lil Giants]

That's how the wdc rims fit together. And I'm not entirely sure, but I think the inner bore tapered to the center a hair so an aluminum ring fit between the two halves to press against the inner bead of the tire to lock the tire to rim. Zero slippage!

[Trucker47]

Wow pugs that sounds one heck of a challenge! Yea I have learned to keep spinning the handle until i get resistance and measure from there, and it kinda works. Hahaha

Lil Giants - thats good news, I geuss I am doing something right, ahaha :rolleyes:

Well today I felt like I was finally getting somewhere, I milled out some sheet steel and welded up the front or the rear chassis. So now it is beggining to finally look like a chassis. And then i stitch welded the rear chassis together (I think thats what it is called). But I must say im getting sick of cutting out 16GA steel on the mill. With the warping form the clamps there are spots where it doesn't cut and other spots where the pass is a little deep for our small machine. I may see if i can get the front end cut out by the water jet place but the road if its not to exspensive. Heres some pics of todays work:

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5943.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5945.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5944.jpg

http://i345.photobucket.com/albums/p398/trucker-47/RC%20Wheel%20Loader%20Project/IMG_5941.jpg

Thanks for lookin!

Chris

[doodlebug]

Hey Chris, have you considered stuffing a wood block inside the frame, and then clamp it to the mill? Just a thought. Great job so far!
Cheer's, Neil.

[pugs]

yeah, I hate milling thin sheet too. Usually use an aluminum subplate and drill any holes I can through the sheet and use bolts through those holes into aluminum plate, then mill profile into alum plate a bit to be sure deep enough.

[doodlebug]

yeah, I hate milling thin sheet too. Usually use an aluminum subplate and drill any holes I can through the sheet and use bolts through those holes into aluminum plate, then mill profile into alum plate a bit to be sure deep enough.

Good explanation! Thank's, Neil.

[Trucker47]

Ah I see, Well I think im going for the easier route there is a waterjet cutting place down the road so im getting a quote for some parts and hopefully going to get them soon :D Also we finally got an edge finder so i cut one of the wheels out to see how they look and i think i will finish the rest of them when the co-axial indicator shows up. Heres a look at the wheels, Im liking them so far :D

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5953.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5954.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5955.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5956.jpg

Then I got some work done on the boom, I ran it throught the machine to first face it all then started the chamfers and then some cutouts but still needs lots of work.:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5957.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5958.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5963.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5961.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5960.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5958.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5959.jpg

Well thats about it for now, Also I started a new job and had to work 48 hours last week on top of school so not to much has been getting done but hopefully that will change soon.


Thanks for lookin,
Chris

[RCP57]

You may want to rethink your boom Chris... I'm not sure that it will be strong enough! Just Kiddin! Looks good.

[chaseracer]

looking great keep it comming it will be a great looking loader, I am so jealous of all you guys and your scratch builds I neither have the skills or the tools to pull that off. my hats off to all you talented builders on this forum.

[Trucker47]

Haha yea the boom is a beast! I got it almost finished all it needs now is to have the final drill sizes drilled at all the center drill spots but ill do that when i get all my hardware figured out. Surprisingly the boom weighs only 1.12 lbs (515g)

Thanks chaseracer! I really appreciate it, But just remeber skills are only part of it if you've got patience it really helps i've screwed up more than a few parts cause i want it done now hahah.

Heres another update the boom is pretty well finished and the front end will be welded together tomorrow as i got the pieces water jet cut from a local shop ( http://www.a2zwaterjet.com/) great guys to deal with! And we got a new cooling system which should be coming this week and i hope we get the co-axial indicator to finish off the wheels! I also ordered some gearhead motors so i will be starting the axles once the wheels are done. Heres some pics for you guys, its finally looking like a loader!!

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5970.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5971.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5969.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5968.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5966.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5965.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5964.jpg

Thanks for lookin!
Chris

[Trucker47]

Got some more done on wheels and snapped a picture. Defiantly motivating to see how it looks!

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5973.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5972.jpg

Chris

[doodlebug]

Hey Chris, have you seen this machining video? At 5:50 he's using a lump of clay and a stick pin for a center finder, learned something new! http://www.youtube.com/watch?v=J4EtmJhDYHQ&feature=bf_prev&list=ULKUtJNnYnp2Q&lf=mfu_in_order
Keep up the great work.
Cheer's, Neil.

[RCP57]

Looking Good Chris!

[Trucker47]

doodlebug - Hmm never seen that method before, im always amazed how much there is to learn about metalworking, just when you think you've figured something out you have tons more to learn :D

RCP57 - Thanks!

Chris

[ihbuilder]

doodlebug - Hmm never seen that method before, im always amazed how much there is to learn about metalworking, just when you think you've figured something out you have tons more to learn :D

RCP57 - Thanks!

Chris

yep , I just learned a bunch more today that'll save me on setup time :D my whole life is school in it self :eek::confused:

loader is lookin great

[doodlebug]

doodlebug - Hmm never seen that method before, im always amazed how much there is to learn about metalworking, just when you think you've figured something out you have tons more to learn :D

RCP57 - Thanks!

Chris

Be glad we have the internet to learn stuff, When I graduated in 84, Al Gore hadn't invented the internet yet:p:p:o:o:eek::(
Cheer's, Neil.

[Trucker47]

doodlebug - Yea the internet is a great thing even though it can cause many bad things. I love how it is basically a big open sourced encyclopaedia, if I want to learn something it is there, you just need to find it.

I'm getting really excited now! I have started making a bucket, almost finished the wheels (buggered one up real bad :mad:) they are a 3 piece inner beadlock design as you have probably seen before. But they are 100% custom and my own design :D. i hope to cut out the hub caps tomorrow as i have 3hrs of available tim on the mill. Then while that is running ill get the axles ready for drilling and milling.

I also got my motors today and boy are they strong for there size (OD= 21.8mm). When i first opened the box i was a little nervous as they were the tiny little guys but with a full 12VDC applied to them if you try to even slow down the motor shaft with you fingers it is impossible, the motor doesn't even show any sign of slowing down. They are Beetle B231 12VDC gearhead motors from robotcombat.com (http://www.robotcombat.com/products/0-B231.html) once i've got them installed and running i'll let you know how it goes but they seem to be perfect for the job. And they have a whopping 1.97 lb/ft each so with one per wheel i will have 7.708 lb/ft which should be plenty. But they do draw 6.8A at stall current :eek: Gonna need some big wire for those.

Now for what you have all been waiting for.

With the wheels done I started to machine the valve system while I waited for the motors. Rather than make three individual valves like in my original design i decided to make it one big block for ease of machining and time. So far i have the final outter dimensions milled and just need to do the final pocketing on the main piece. Then turn the spools and put the rest of the peices together! :D:D I really hope my design works or else I might have to buy some valves :o

Heres some pics for you guys!

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6010.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6009.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6007.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6005.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6003.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5997.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_5996.jpg

(The hole where the spool goes still needs to be drilled out and reamed, its not actually going to be only 3mm like in the pic :cool:)

Also if there is enough interest and the valves work I may make some and sell them aswell as sell some plans. Just put a post down if you might be interested. No guarantee`s though as Im going to school, working, on a community soccer team and tryin to build this thing.

Cheers,
Chris

[doodlebug]

Hey Chris, alturnative's to the expensive oversea's stuff, should be welcomed by this crowd!
Sound's like rimpull(wheel torque) would be close to operating weight. Should be very aggresive when finished!
Cheer's, Neil.

[Azonic]

Great progress, youre doing one **** of a job on this!

[td9clyde]

nice work i haven't been watching this close but you you caught my eyes lol the machining is nice wish i could do half as good keep up the great work

[Trucker47]

Thanks everybody I really apprecaite your comments! Its always a good motivater to see that other people enjoy watching my work :D

I was able to get some time on the lathe today and finished off one of my axle cases and tested to see if they would fit the motors and if they looked good. The motors fit perfect and I think they look really good. I may narrow the center bump but it is scaled off the 1:1 loader so i may leave it.

Also if anybody has noticed my build is all over the place because when I have shop time I gotta make due with whatever material and machines I have available. :p And I am on very tight time restaints so I have to work quick without any mistakes. Also because I have all my plans done for everything it is nice because I can machine the part and know it is going to fit. This has got rid of lots of headaches during test fitting and reduces the amount of "bad" parts or Learning experience's :D . Heres some pics of the front end and axle case:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6011.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6012.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6013.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6014.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6015.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6016.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6017.jpg

Final slotting to fit chassis still needs to be done:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6018.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6019.jpg


http://i345.photobucket.com/albums/p398/trucker-47/IMG_6020.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6021.jpg


And pugs see how you say it is doable to work around backlash now all my parts that come off the lathe that need critical dimensions are within +/- 0.5mm :D :D
Thanks!
Chris

[modelman]

Very interesting build-how will you secure the motors in the axle housing?

[SmallHaul]

Great work! It is fun watching this come together.

It already looks like a nice machine.

[Trucker47]

modelman - Thanks! on the end of each axle case there will be an end cap which bolts the motor to, and holds a bearing that supports the hub from the wheel

SmallHaul - Thanks! Yes it is really exciting to see it come together, especially since I started thinking of making one about a year and a half ago and now I actually get to!

Not to much of an update with the mill down.... But i got the hub caps all finished and I love the look of them

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6026.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6034.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6025.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6024.jpg

Thanks for looking,
Chris

[Trucker47]

I haven't really got any updates right now as i've been a little side tracked since I picked up my first car :D

its a 1972 240z, L24 engine, dual SU Carbs, 4 spd manual, white interior :D

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6043.jpg

Chris

[CrimsonCorsair]

Wow - did a lot of work on a 240Z that belonged to my brother in law. Mostly electrical, but also built three different motors before he sold it and bought a new Mini Cooper. Fun car to drive, easy to work on, but expensive to own - good luck!

[titandigs]

Now its the car next will be the girls and the model will be forgotten:)

[RCP57]

Now its the car next will be the girls and the model will be forgoten:)

I was thinkin the same thing! I don't know if most teenage girls are smart enough to realize that a guy who can build a model like that is going to go places that the car can't take them. On the other hand, from Chris's perspective does he care right now?lol. A buddy of mine had a 280 back in high school. Chopping doughnuts in it was very strange because you sit back so far. I believe the car did help him become better "friends" with some girls though.:cool:

Reg

[Trucker47]

CrimsonCorsair - yea so fair it has been a sweet car but I have needed to put in a new alternator and rear brakes.......

titandigs, RCP57 - Hahahah, don't worry this project and the forum won't be forgotten. :D Hopefully this week i'll have an update as I'm just finishing the hubs and the axles will be complete!

Yea I hope once I can meet somebody who appreciates all the building and engineering that go into projects like this, and she can't be a tart like half the girls on TV, (ex. Jersey Shore.......) hahaha.

Yea I am really excited about it, since it is so light it gets up and goes pretty quick but doesn't have a high top speed which is fine with me. I'm thinkin the car will help out quite a bit, almost every where I go I get complements on it, from the janitors at my school to the guy who stopped the look at the car stuck in the middle of the road when the alternator died hahaha.

Thanks,
Chris

[RCP57]

HAHA Hopefully you don't have too many more problems. I'm not sure why you bought a car without a back seat though??? I guess it does have a long hood...:D

Maybe you'll end up like me and still have your first vehicle 20 years later parked in the corner of your garage?

Reg

[Madda]

Hey Chris, haven't heard about you lately. You don't answer to e-mails or update the thread. What have you been up to?

[Trucker47]

Hey everybody,

I really appologize for not keeping everybody updated but lately everything for me has been a speed wobble on the slow days. I was involved in a Physics Olympics team for a UBC competition which took lots of time (i usually left school at 5-6pm :eek:). Then I was working quite a bit, my aunt got married and i was in charge of doing the music, and im trying to keep my car running as the guy who I bought it from never really did anything that he said he did. But it should be good after this weekend once I finish the new fuel system.

But don't worry the loader has not been forgotten and has been a high priority! :D:D So far both axles are done and the machine can move itself, I am finishing the axles mounts this weekend, a new battery system has been made (2 x 2c li-po in series for a 15v system) the turning and tilting linkage has been completed, the boom bucket linkage has been completed and works flawlessly. This system allows the bucket to remain withing 5-10 degrees of original position throughout the lifting cycle.

I also has scrapped the old bi-direction spool selector valve for a new design similiar to the german valves. I did this to save time as there are less parts, they are smaller, and I can machine them much quicker. The lighting system is about 50% complete and needs to be installed in the machine.

This coming week I plan to test the valve design and build the belt reduction system for the gear pump (don't worry Lil Giants I haven't forgotten :) ) and start on the steering and lifting cylinders. Again I apologize for not keeping it updated but like I said it has been crazy busy but things are starting to settle down and I've got 50 days left of the school year so let the count down begin and get the milling machine running over time.

Madda - Sorry for not replying, ill send you an e-mail tonight

Also I will try to get pictures up tomorrow of my current progress :cool:

-Chris

[RCP57]

And here I thought you were just stuck under a pile of teenage girls and couldn't reach the computer...:D

Glad to have you back!

[doodlebug]

And here I thought you were just stuck under a pile of teenage girls and couldn't reach the computer...:D

Glad to have you back!

LOL:p:eek::D

[Trucker47]

Hahaha thats only on the weekends :cool:

Heres some pictures showing some progress:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6151.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6156.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6157.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6158.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6159.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6160.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6163.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6164.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6165.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6166.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6167.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6171.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6173.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6175.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6176.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6177.jpg

Compared to a 3/8 end mill

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6179.jpg

Chris

[Madda]

So first testdrive and lifting video is coming soon? :p

Great progress, you still have to move fast though, June is near.

I see you made new hydraulic valves?

[dabears]

looking good! lets see a test vid!! :)

[RCKiwi]

Nice machine work.:cool:
You don't have any concerns about fluid finding its way up through the centre hole of the rotary head?

[Trucker47]

Madda - I hope so I am working like mad to get the rc radio system all setup with the motor driver interfaces i am using along with the rest of the electrical system.

Yea i decided to go the simpler and quicker route with the little time i have left.

dabears - Thanks!

RCKiwi - Thank you, no not really as that is where the servo will bolt into.

Heres a teaser of the new triple valve block


http://i345.photobucket.com/albums/p398/trucker-47/IMG_6181.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6185.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6188.jpg

Chris

[Espeefan]

Nice work Chris. So are you taking some college level machining and engineering courses? I kind of get that drift, from reading your posts, and if that is the case, this project is turning out really great! I find myself distracted by women too, so I can understand the delays in this project! Ha ha. Keep it up. It's looking really nice.

[Trucker47]

Espeefan - Thanks! Im actually just a gr 12 high school student couting the days until grad :D Hahaha yes it seems they are the cause of many delays, hahaha

So i just got a big part of my hydraulic system.

For the motor i went with a 740KV Thunder Tiger 36 Series Ripper outrunner.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6191.jpg
http://i345.photobucket.com/albums/p398/trucker-47/IMG_6192.jpg

Then i got a E-Flite 60 Amp Pro Brushless ESC:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6193.jpg

I also got the ESC's that I will be using for the axle motors, they are Pololu 18v15 Digital Speed Controllers. Have a max output of 30a, input of 30v and are reasonably priced, plus they are small. I just hope that they hold up under the high draw setup.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6194.jpg

Now that I have the motor for the pump I designed a belt reduction system using FingerTech Pulleys that will reduce the RPM -2.8x which will increase torque and keep my system pressure constant under load.

The housing

http://i345.photobucket.com/albums/p398/trucker-47/BeltReductionPumpHousing.jpg

http://i345.photobucket.com/albums/p398/trucker-47/BeltReductionPump.jpg

So If everything comes together like it should I hope to be finished to a point where I can hand it in, then over the summer and however long I have the model I can fix gliches, upgrade parts and put all the details on.

Thanks for reading,
Chris

[Espeefan]

Dang, to bad I wasn't as good as you were in the 12th grade! You're gonna go far, kid!

[Madda]

Looks better with every update. When are you going to paint?

Chris has got a lot of talent, he's robots will be famous! I agree with Espeefan.

It got me wondering, what is the average age of scratch builders here?

[RCP57]

Chris,
Are those E-Flite 60 Amp Pro Brushless ESC's reversable? I don't think so...

Alan

That one is for the pump motor.

Reg

[Trucker47]

Espeefan - Thank you very much!

Madda - I plant to paint once I feel that i dont need to change anything because I don't want to paint it and start thinking im done when I still have lots to do.

RCP57 - You got it!

So today i got the housing for my belt reduction system for the pump, probably the longest part i have cut to date, 1 hour 40 mins and that doesn't even include re-setting the program after somebody thought it was a good idea to hit the shop power emergency switch in the middle of a cut. :mad::mad:

Now i just need to get the pulleys installed and it should be good to go.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120502_134309.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120502_135450.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120502_155608.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120502_155618.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120502_155628.jpg

Thanks for reading!

Chris

[ihbuilder]

:eek: almost 2 hrs :eek: :p:p:p:p:p JK , Chris :D your doing a great job ;) your fortunate to have that type of stuff in the HS . I was lucky enough to be able to have industrial shop the last year they offered it :( . 2 summers later they auctioned everything off :( No NC at that time not even a BP vertical mill .
some lathes a horizontal mill , sheet metal tools and a forge .

[Trucker47]

ihbuilder - Thanks! Yea I really lucked out on the that one!

So Got the belt drive all finished and ready to be installed. And it came out great. It has a 2.85:1 reduction from motor to pump. I also got some other smaller parts cut out here and there. Just wanting for some metal to come in to get working on some other parts.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120521_210057.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120521_210200.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120521_210215.jpg

Chris

[aussietruckerguy]

nice!!!!

[Trucker47]

aussietrckerguy - thanks!

So today I cut out the reservoir tank out of a 2.25" x 2" x 1" block, it has a 43mL capacity, M5 Inlet and output ports and a solid top cap. Hopefully it doesn't leak but only time will tell.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120523_210933.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120523_210951.jpg

Hopefully tomorrow I can get back to work on the valves again.

Thanks!
-Chris

[RCP57]

Do you have a vent in it Chris?

Reg

[Madda]

Wohoo, fast progress few last days, keep it going!


I'm waiting the results, high school boy building his own hydraulics :p

[Trucker47]

RCP57 - No not yet as i don't quite know the orientation of the tank so i don't want to drill a hole for the vent line and then end up having it in a spot I cant get to.

Madda - Yea I have to move quick!! Time is really sneaking up in me, my first exam is in less than a month :eek::eek::eek::eek::eek:

On that note I might have to wait for lights and such until summer after I graduate, but luckily i talked to my teachers and they are fine with me doing that.

Anyways today I finished machining the body of the valve system and now i just need to redo the face plate, make the rotars and she's good to go. Then Ill finish the cylinders and we should be good to go on the hydraulics as long as we have no catastrophes :o

As always here are some pictures:

Inside the tank:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175340.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175354.jpg

Valve assembly:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175416.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175427.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175433.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175446.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_175452.jpg

Start of the lift cylinders:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120524_182136.jpg

Thanks for lookin!

Chris

[Lil Giants]

So what did you do there with the valve? You going to have a pressured line & a return line coming from each valve?

What size fittings & tubings to the cylinders?

[Trucker47]

Lil Giants - Yea on each valve i hill have a supply and return like you said with an external manifold. But looking at it now i should have milled in the supply and return lines into the valve block. Oh well, thats part of learning.

the fittings are M5 thread with 4mm OD tubing i believe, i'll try to get a pick up to showing the scale of the valves and the new front plate because that one in the pictures the fittings were to close.

Chris

[Trucker47]

Well we sure are getting close!! I got all the electronics sorted out for now all i need is a servo slower or a servo tester to control the pump rpm/pressure. Until I accidently dropped a motor controlled and it shorted out on a metal shaving near my drill press :mad::mad::mad: i was even working on wood to prevent problems like this :( The valves are now done but I need to finish the cylinders to be able to test and see if it works. I got all the bucket linkage worked out and now need to weld and braze the bucket but i have to pick up some argon for the MIG my dad has got because our industrial sized welder at school burns through 14 GA. Heres some pics of the progress:

showing everything that needs to fit, ill cut some wires and clean it up once i know the final lengths.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120607_215408.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_20120607_215420.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6203.jpg

Low current draw branch of the wiring harness.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6205.jpg

Manifold from pump to valves and from valves to tank.

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6206.jpg

Finished valves:

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6207.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6208.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6209.jpg

Cab Lights

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6210.jpg

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6211.jpg

Bucket linkage

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6212.jpg

Lift and turning cylinders

http://i345.photobucket.com/albums/p398/trucker-47/IMG_6214.jpg

Thats all for now and i've got one week to get this thing working!! Time to get er done!

Chris

[Madda]

Very good job Chris!

I wish you good luck to get everything working, you must be pretty nervous to see what's going to happen when all hooked together?

Put video here asap you get some action!

[Trucker47]

Thanks Madda!
yea its a pretty nerve racking especially because i don't have any more time or money to fix thing if they dont go as planned. Plus so many people who have helped build it wanna see how it works so i gotta make sure it actually runs!!

Will do, might be after i get it all done but ill get some up asap!

Chris

[Hofabooz]

Hi Chris


Looking great I'am sure it will all come toghter and work.
Very high standard of work wishing you well.

Regards

Mark

[RCP57]

OK Chris, you are well outta school so where is the finished product?

[Trucker47]

Hey sorry for the lack of updates but I needed a break, i was working 6+ hrs a day trying to finish it and needed a break before i got to tired and said screw it. Unfortunately i ran into some problems with the loader and some other things and didn't get it done in time but i got an all access pass to the shop so on my days off ill be in the shop finishing it up! Dont worry ill get it done come **** or high water!

Chris

[D8R]

Hi Chris, any update on the loader?
Question on your valve design, what do you use as seals between rotator and base?
Dan

[tulushadi]

hi chris.. i cant wait to see your project run again.. i love your skill and sharing it to us
i hope this isnt forgotten project..

[Lil Giants]

He's a young fellow fresh out of school who has probably found himself lost in wine, women & song for a (long) while. :D

[Trucker47]

Been working in this thing here and there in SolidWorks updating it and correcting errors from what I have learned in school so far. Isn't completely dead just in the middle of a re-vamp I guess you could say.

Chassis has been changed to 1/8" plate that is all slip fit, then will be TIG welded, re-worked all pivot points to use a proper bushing setup, Re-worked the axle mount.

This is also on the list to be updated:
cylinders
possible suspension
electronics
pump
valves
pressure release
body
oil cooler
battery setup
possible Aruduino based custom radio ~ basically un limited channels
chassis will continue to be updated

When that is all done at some point i will get all the plates laser or water jet cut and then TIG weld them into a assembly.

Hydraulics are my largest challenge right now as i want them to function perfectly.

http://i345.photobucket.com/albums/p398/trucker-47/Revamp_zps589780b7.jpg (http://s345.photobucket.com/user/trucker-47/media/Revamp_zps589780b7.jpg.html)

Hope I haven't been forgotten!! :D

-Chris Pope

[doodlebug]

No! Keep it up!
Cheers, Neil.

[Trucker47]

Hey,

Thanks Neil,

So the more i've learned the more I will be changing this project. The chassis has been updated again but I am not fond of it...

I am currently studying micro controller hardware interfacing in school right now. So I think when I am complete school I will be designing a Micro controller based operating system with feedback and a custom wireless interface for a huge amount of channels. Hopefully something around a 1.2Ghz for low interference.

Maybe one day Ill get this complete...

[K-Man]

We do need better radio controllers designed for RC construction vehicles. Keep up the good work. We all learning from your work.

[bigpipespete]

Nice to see another local builder, your guys knowledge of machining parts is amazing. Keep up the good work Chris.
Mike.

[Joe25]

Very impressive work Chris! After ten years of military and law enforcement I went to an aviation tech program (FAA cert. believe they call it an EASA up north) your light years ahead of where I am... your work greatly makes me wish I had taken shop and stuck with it lol. Like the design keep it up :)

Joe

[denn1s33]

This is a profession?
Really good works.I don't see any people like you for my country.

[Trucker47]

Thanks for all the kind comments! I've made more slow progress but only in Solidworks as funds are low as is time with my current student status.

Denn1s33 - Yes, I am currently working as a CAD Designer for my full time employment during summer and I do small CAD jobs during school for friends and co-workers.

So far the complete chassis has been revamped again to adjust for small changes, the hydraulic system has been redesigned and now utilizes:
smaller variable flow directional valves
variable pressure relieve valve
oil cooler
proper routing and hose management
manifolds are used for pressure and return to tank lines
new tank
all hydraulics are in the rear chassis below the soon to be electronics deck
also added a 4th valve for an accesories

Heres some more pictures:

http://i345.photobucket.com/albums/p398/trucker-47/progress_zpsef66a17c.jpg (http://s345.photobucket.com/user/trucker-47/media/progress_zpsef66a17c.jpg.html)

http://i345.photobucket.com/albums/p398/trucker-47/progress2_zpsb186db23.jpg (http://s345.photobucket.com/user/trucker-47/media/progress2_zpsb186db23.jpg.html)

Any questions let me know!

thanks again,

Chris

[doodlebug]

Yer having fun with it , looks great!
Cheers, Neil.