Re: First build ,cat D11
 

Well I came up with a combination of newer cutting edge and relocating pin hole closer on tilt cylinders
http://i1357.photobucket.com/albums/...psg1eswbeb.jpg
Might get some smaller stock for cutting edge but you get the idea

http://i1357.photobucket.com/albums/...ps8rztg4p2.jpg
And this is as close as I can get the blade to the cylinders. When blade is fully lifted that is where the limit of how far I can tilt blade back before contact with cylinders.

Re: First build ,cat D11
 

Cooper-I think that was 9W talking about blade geometry. Wasn't me. That's kinda over my head. The only thing I know about dozers is that I would like to build one but that probably won't happen. I just watch videos, read the threads and try to learn from all the people on this great site. Common sense seems to go a long way and you have that. If you need more angle on the blade maybe as an experiment you could make small extensions for the front of your push arms and not have to go thru all that work of making new ones. I always say when trying to work out problems do the least amount of work possible to solve the problem and then make the correct parts. I'm sure you can get it right.

Re: First build ,cat D11
 

Ok, sorry about getting confused of who, I'm happy with all the input everyone is adding!! I have been rained out today some some useful shop time for the dozer. So far I have relocated the pin holes for tilt cylinders. Not sure if I can get to cutting edge but will try. Want to get this done today so I can see how it works tomorrow. :). Yes I agree about making minimal parts for trying something new. Guess that's why I haven't got around to paint the cylinders. Originally I had shorter cylinders but they were too shot and remade them. Well should have looked closer as that's where so of it went wrong. Top of blade was originally ment to be level. Kind of like an indicator to operator of cutting edge position.

Re: First build ,cat D11
 

I think its cool regardless of if it gives you problems or not. it's more dozer then I have!!

Re: First build ,cat D11
 

Hey Cooper, try and get the cutting edge's lower than the rest of the blade. then the sides won't hinder the cutting edge penetration. Looking good so far!
Cheers, Neil.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...pscbntaktj.jpg
So much for digging at our Riverlot!!! We got 3" of rain and river came up, a lot!!

Re: First build ,cat D11
 

I did bring over another load of dirt for the pond fill project. I have a long video that I did not film very well but I will upload when I get a landline. The dirt is more like mud, very wet and sticky but did get to push some with the help of the male dog. You'll see what I mean when I get the video up:). Tried to spray silicone on the blade but dirt is just too wet.

Re: First build ,cat D11
 

Some more pushing today, came to the conclusion after the great constructive criticism that even the best machines will preform ill in mud. I was hoping that the dirt on top of my pile would be dry enough to test out the new blade and cutting edge but the soil was just too wet. Tracks fill with mud just by driving. I think this week I'll bring over some dirt that is more like sand. We have some piles of really good topsoil, pasture soil, sand and clay/shale stuff. I'm thinking for the toys the sandy stuff might be more fun to play in. ? And in the comparison of that d9, yes it's a true work of art but I'm on 1:14 scale and his 1:10 scale 97 pounder will definitely out push mine. One of these days when the soil is dry I'll get some good pushing video, and not just trying to get a full blade in 6 inches of travel.

Re: First build ,cat D11
 

Do you have a rototiller? Aerate the soil, so it will dry out faster.
Cheers, Neil.

Re: First build ,cat D11
 

Yes Neil, if I have time this week I'm going to hook up the tiller and drive down to our Riverlot. With permission of landlord, he is just as entertained with the rc toys as we are. Then most of the finger roots in that area will be of no harm. As far as home pond project I started tearing down the cat. Figured it is a good time to paint cylinders. Inspect insides of tubes ect. And I also have to put some divots in the final drive shafts as the two set screws have started to rotate. This thing has a lot of power, I have two set screws on the larger sprockets, one with a flat spot milled on the shaft and they are shearing on the 1/2" shaft. I think I made those shafts out of stainless, I'm going to make new ones from some higher carbon steel. Looking back I guess I should have run her more before final paint but I'm still a big kid and can't wait!!! :). And have to use a little filler on the blade where the new cutting edge was attached. Hopefully I can get this done soon!!

Re: First build ,cat D11
 

This is the video of the hose blow out. Right before end you can hear a pop and the blade is dragging as I'm going backwards.

http://youtu.be/GSz_tpY3xE4

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...psjqbdahlw.jpg

I was able to get the vinyl cutter out during the rain showers today. These are the windows and cat decals. I don't have a multi color vinyl printer so I'm just placing layers.

Re: First build ,cat D11
 

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...pszempw0cq.jpg

http://i1357.photobucket.com/albums/...psizo9zchu.jpg

http://i1357.photobucket.com/albums/...psmpmxxe5b.jpg

Well she is finished!! I did end up adding a square key to the final drive sprocket, that really beefs the drive system up. I still have not got to stall the motors, I think the chain or track links will break first!! Only thing left to do is a lighting system. I have incorporated room for lights in the steps and for attaching lights to top of lift cylinders. Only creative area will be installing lights for backing up. Thanks sooooo much for all of your support and guidance!! This has really been a dream of mine since I was a little kid to run the real ones ( got to do that- d9) and to have a r/c dozer that is not a toy but a workhorse!!! Now I guess I need to get the Aeromax running for a heavy hauler and dump truck, and excavator, and wheel loader and,,, and,,,,,,it's all that crazy Canadians fault for getting my attention from some article that I have arrived here!!!!! :). Thank you!!

Re: First build ,cat D11
 

Wow that looks good Cooper ..Yes I know Is joes fault ..He got me started as well .lol

Re: First build ,cat D11
 

Yup, he has stirred a lot of pots!!! And I forgot to mention that I'm running at 20bar. That is enough to have the blade full with stickey mud dirt that she will lift. I don't know how much weight that is but it is a good bit. I also went back and took off .005 for the sealing ring seals. The shafts were just too tight. Works a lot better with less effort. I am currently using what ever hose premacon shipped me but I did get some higher psi rated 350-400 hose in case they get warm and swell/burst. If that happens I will be replacing.

Re: First build ,cat D11
 

How is the blade working since the slight rebuild?

Re: First build ,cat D11
 

Ah,, I would love to report on those modifications if,,,, we quit getting rain!!!!!!!! :(

It's been a little wet lately, that's why I have been doing some of this little final stuff. I did sand the paint off blade (help with dirt sliding) personally I don't see how it would make a difference paint was pretty slippery. And bondo the voids, just sprayed primer on the new cutting edge. It hasent seen dirt yet, will video some if I get chance tomorrow. And I put a pretty sharp edge on the ripper:) will help with cutting up roots. Yea, it's just alum but I was board. :)

Re: First build ,cat D11
 

And tonight I got to the stone guards, step and handle on the tilt cylinder
http://i1357.photobucket.com/albums/...psjbvqwawy.jpg

Re: First build ,cat D11
 

Great job on the dozer....well done!!!:cool: Looking forward to seeing more vids....

Re: First build ,cat D11
 

That's an awesome build! The details and the working-through-the-problems paid off greatly.

Ken

Re: First build ,cat D11
 

Looks a lot better with the color added. Breaks up the yellow nicely. Good job!!

Re: First build ,cat D11
 

It was Great and now it's Awesome ! All you need now is clear sky's no more Rain. Waiting for the Dirty Dozer Video :cool:

Re: First build ,cat D11
 

Great built!

kerst

Re: First build ,cat D11
 

What a difference with the stickers, nice addition of details as well, great job!

How did you attach the handle on the cylinder? :)

Re: First build ,cat D11
 

Ahhh winding down after the holiday weekend. I tried to upload some video but for the hd I need a landline. I will soon. Had another hose blow out so I switched all hoses to higher psi rating. I'm running around 300psi and hose is rated for 350. So I got that fixed ,,,I think :). And I'm becoming a little better operator, kinda like the 1:1, hate having to back up over speed bumps!!! Happy holidays for our vets!!!!

Re: First build ,cat D11
 

http://youtu.be/Oc_4df_F7ck
Sorry I thought this was in hd, I uploaded this yesterday, just now got an email saing it was on utube!!

Re: First build ,cat D11
 

Looks like the dozer is working a bit better now. By just watching the video it looks like the up-down movement of the blade is too quick. May need to slow that down to get long full consistent pushes. Or maybe just need more stick time. The way the dirt is sticking to the blade I am assuming the dirt is wet. Yes-No? Also looks like you are controlling a lot of functions with the sticks. This will take a lot of practice but looks like you have the perfect place for that. Keep working.

Re: First build ,cat D11
 

Yes she is working very well now. Just like a beginner operator usually goes too fast and uses too much blade movement I find myself doing the same thing. Once I get use to blade orientation to cutting edge along with stick movements I'm sure I'll be getting some consistent work done. I know I have been rather snappy with movements but I'm not going to slow them down mechanically as I still want to have that snap to be able to knock some dirt off. I will however have to be more discipline with my thumbs. And yes the dirt has been very wet, mud lately. Soil I have is sandy and drys quickly but we keep getting a shower now n then. And functions are, left stick=motion. Right stick= up /down blade and dump blade, switch enables right stick to be up/down blade and left/right tilt. Another switch changes right stick to ripper up/down and rip angle. Along with another switch turning on hydro pump to 35% then increased to 100% when any stick movement. Another switch is on/off relay for fan. I'm pretty happy with my creation and still amazed with how much power this thing has, have not stalled motors yet (would rather not find out) and now that tracks have some time on them they are running very smooth. I'll get so,e more videos in future. Thanks for watching.

Re: First build ,cat D11
 

http://youtu.be/1ChTDkoDnns

This really show how wet the dirt has been.

Re: First build ,cat D11
 

Your dozer looks and operates great! Waiting for some dry, non-clay soil so that big blade can do its carry-dozer routine. Love watching a huge mound of dirt being pushed a long distance in a slot-dozing operation - that's what they're for. Congratulations on a really nice model.

Ken

Re: First build ,cat D11
 

Some interest in how I was using the radio and five valves. I made a short video on this.
http://youtu.be/4TBQySRu-Xs
And a bunch of dozer videos on my youtube page.

Re: First build ,cat D11
 

I have been scale modeling for over 55 years. Though my specialties have not been in metal, I have done significant subjects in perfect scale. Done this also with RC airplanes and helicopters. Finally after years and years I learned that almost scale is good enough to have loads of fun with and there isn't the fear factor of crashing and destroying the whole thing.

But, this build is one of the most, if not the most amazing builds I have ever read. Less than 1 year!!!:jaw:

The only grievance about all this is that the early machining and design weren't clearly shown. If I end up going there, there will be many questions. Not having a mill or the tooling, not sure if I could justify the tooling cost to build one.

Again, absolutely amazing head cad work. (Ya I think it is easier to make it from the mind over draw it too, and those computer cad programs take forever to learn and just don't click.)

And for those that have joined since all this, this is a good read.

Re: First build ,cat D11
 

R.W. built this dozer free hand no cad programs

Re: First build ,cat D11
 

Cooper the dozer videos are the best Ive ever seen

Re: First build ,cat D11
 

Thanks guys, more videos on the last page

http://www.rctruckandconstruction.co...t=9048&page=83

But to be honest and give credit where it belongs, I spent many hours looking and learning from all the awesome builds on this forum!!!

Re: First build ,cat D11
 

Cooper your dozer videos are the best rc dozer I've seen great job that material you were pushing is ideal for that big truck yr making sweeeet

Re: First build ,cat D11
 

Congratulations Cooper!!! Your job is excelent :-)