The Rock Crusher

[KINGJB]

I have built a home made crawler. It uses axial axles so I figured i'd put it here.

Here is how it went together.


The chassis will be made out of aluminum plates.

Here are the axles I am going to use





Going to use traxxas links for it



Going to make the links out of some threaded rod



I decided to use a traxxas tranny and lock the differential.







after filling it with JB weld bond and letting it set, I have a locked diff.



Now to mock up and cut the chassis























And a quick mock up as it was at that point



Then a little reinforcement



Now to mount the tranny to the chassis

[KINGJB]

Now for the links









Made the steering rods







Then the uppers









Then did a little work with some tubing to make everything pretty



I think it works pretty good




Now I decided to give it a real low crawl ratio via this



The reduction box itself



Little trimming







I did a test fit with an old motor I had and its tight but fits

[KINGJB]

Shocks:



Wheels/Tires:





And The cherokee body:



Without shocks:



Now with:













Next to its big brother:







It sits a bit to high for my liking but it will work.

[KINGJB]

Now to cut the body up





Needs to be comp cut in the rear and major fender trimming up front



Still need more
V
V
V
Better





Now onto the rear



before
V
V
V
That's better












Now I just need to go mount it up.

Mounting the body

It starts here:



Then mounted these:



like so:



made holes in the body:



and there you go.





Need to do more trimming, probably going to comp cut the front too



and need more cutting in the rear

[KINGJB]

Some shots of how it looked at this step.

[C*H*U*D]

Homebrews kick ass

[KINGJB]

I painted the body today

[KINGJB]

Did some work

started by taking the tranny out



Did some trimming



But realized I trimmed the wrong area at first, so I trimmed the area I needed too.



Then cut some aluminum





Drilled some holes



And here is how it looks now, just need the motor to fill it up.





Here is a mock up with my "test motor"

[KINGJB]

Got most of the stuff together.



I needed a spacer to mount the motor against, so I made one out of wood



Here is the motor with the pinion gear on



The gear reduction box





Then soldiered the motor to the ESC





Then went to getting the steering all set up





Then after doing some testing, I found the reduction box was way to much, the tires barley turned with the motor run at full blast.


So I just used the tiny pinion gear and it moves at a walking pace.

[KINGJB]

Originally Posted by C*H*U*D

Homebrews kick ass

I know, it's awesome.

[KINGJB]

These are some videos to go along with it.

My Crawler

[KINGJB]

A while ago I had dropped it and broke the upper link connector. Well I finally fixed it.



new 3 link connectors to fix it.



yup



And reinstalled



I had at some point changed to a servo horn instead of a servo saver, I never was able to use it though when I broke the first 3 link connector.



Then took a couple minutes and cut the ends of the shock screws and the sharp corners of the chassis down

[Bruz]

This is sweet. I love homebuilds and the drill idea for a reduction was a great idea.

[KINGJB]

Originally Posted by Bruz

This is sweet. I love homebuilds and the drill idea for a reduction was a great idea.

It didn't work though.

[KINGJB]

I recently made a camera mount for on board video.







simple and it works.

here is a short test video.

http://www.youtube.com/watch?v=VsysoxXmuUU

[KINGJB]

I put together an onboard video.

Here is a link to the thread.

http://www.rccrawler.com/forum/showt...74#post2873774