Comanche Build - Very Scale - SCX10

[Spidernad]

This build thread is for the Jeep Comanche that is to be the twin brother to the Jeep Cherokee that I just finished.

If you haven't seen the Cherokee build thread it is here: http://www.rccrawler.com/forum/axial-scx-10/383358-cherokee-build-very-scale-scx10.html

Here are a few pics of the Cherokee.

These two trucks are being built to resemble the full scale vehicles in stock form and function.
Since they are built on the Axial SCX10 chassis, there will be some diffrences from their 1:1 counterparts such as coil springs, etc.
My budget is very limited so I am only aiming to make a couple scale looking Jeeps that the average person could afford to build, yet still have them be remarkable.

So let's get started!

 

[xjcralwer7]

Woohoo, cant wait!

 

[Spidernad]

Woohoo, cant wait!

"thumbsup"

 

[foproy]

This build thread is for the Jeep Comanche that is to be the twin brother to the Jeep Cherokee that I just finished.

If you haven't seen the Cherokee build thread it is here: http://www.rccrawler.com/forum/axial-scx-10/383358-cherokee-build-very-scale-scx10.html

Here are a few pics of the Cherokee.

These two trucks are being built to resemble the full scale vehicles in stock form and function.
Since they are built on the Axial SCX10 chassis, there will be some diffrences from their 1:1 counterparts such as coil springs, etc.
My budget is very limited so I am only aiming to make a couple scale looking Jeeps that the average person could afford to build, yet still have them be remarkable.

So let's get started!

they aren't cheap but rc4wd makes a beadlock steel version of that exact rim.

 

[pobrockcrawler]

awesome, can't wait to see what you come up with, it's going to be great."thumbsup"

i have a comanche body myself

 

[Spidernad]

they aren't cheap but rc4wd makes a beadlock steel version of that exact rim.

I know, I saw those, it was very tempting but I'm just so poor! lol
If only I had a sponsor, or could hit the lotto, I have so many trucks I want to build!

 

[Spidernad]

awesome, can't wait to see what you come up with, it's going to be great."thumbsup"

i have a comanche body myself

Thanks, and very well done on that Comanche you have.

 

[Spidernad]

I'm going to use the "open" diffs in this build too like I did in the Cherokee but I have found a way to limit the slip in the diff, and it's so simple.
It did add a significant amount of drag on the side gears when I put an axle in and tried to turn it. I will put this in the Comanche diffs and see how well it works like a real Limited Slip Differential. (see pics below) "thumbsup"

 

[Spidernad]

Got the chassis sorted out with all the upgraded steering and suspension parts.

Here are the axle housings opened up and the new Limited Slip Differentials (LSD) ready to assemble.

Here are the LSD's assembled and in the housings, ready to close up.

Ready to put in the truck.

 

[Spidernad]

Making custom shorter springs from the optional soft springs.
These will let the truck sit low like the stock 1:1 but still let the shocks have full travel. (worked great on the Cherokee build).

Reforming the cut ends.

Finished modified soft springs on left, Stock stiff springs on right.
Each spring mod took 30 minutes or more, Ugghh!

 

[BubbaEinstein]

Do you use bumpstops to limit the articulation or are you using the rc4wd internal spring shocks on this build too? I'm just curious because I know the stock shocks use those spring retainers that require tension (theoretically) to stay in place.

thanks!

 

[Spidernad]

Do you use bumpstops to limit the articulation or are you using the rc4wd internal spring shocks on this build too? I'm just curious because I know the stock shocks use those spring retainers that require tension (theoretically) to stay in place.

thanks!

Using RC4WD internal spring shocks on this build too, now that I've spent the time on the Cherokee build to make them work the way I want I might as well stick with them. Plus I like the way they look.

The shocks move much smoother if you pack the two O-rings and plastic spacer with Sil-Glyde

I like these red boots too.

I use a 6x6x3mm spacer and a washer to get the shocks away from the hoops and make them parallel.

 

[Spidernad]

A couple of things I wanted to try with this build were a chassis mounted steering servo (CMS) and a 4-link front suspension to match the rear.

I run a front mounted battery to keep weight on the front tires for climbing, and also the stock receiver box, so I tried the RC4WD CMS kit since it looked like it would still let me use them.
I was a little suprised that they had the wrong hole type in the rear brace where the front receiver box mounts fit into it. They have a tapered countersunk seat in the two holes but the stock brace has two flat bottom (milled) holes in there to fit the box mounts. (See pics below) So I had to use a flat mill type dremel bit and rework the hole to look like the stock one. (what a pain! doesn't anyone check these parts in the real world application?)

Since this truck will sit low but still have full suspension travel I need the four link setup to go all the way up and down and not hit anything.
The stock four link mount was hitting the servo on the full up suspension travel as you can see below.

So I made a custom 4-link mount that was out of everything's way and gave me full up and down travel. : )

 

[Soulo747]

Elegant and simple solution. The two keys to good design. Engineering students everywhere take note.

 

[Spidernad]

Elegant and simple solution. The two keys to good design. Engineering students everywhere take note.

Thanks for the vote of confidence. "thumbsup"

 

[Spidernad]

Okay, next up is the steering setup.
I upgraded to all aluminum steering parts and the high angle universal joint front axles.

The C-hubs don't come with the 3x10mm button head scerws that are needed, (???) so I cut down some 3x12mm ones that I have a bunch of.

I Also upgraded to steel balls for the steering links.

Here it is together.

The CMS install was not as straight forward as I would have liked it to be but I think it came out alright after a bit of tweaking.
I had to move the long steering link to the bottom of the attachment points instead of the top because it would collide with the short link at the servo arm attachment point when the suspention was fully collapsed, and it also keeps it from hitting the axle housing center at full turns now since the steering range is so much more now.

I Also used some 3mm spacers to achieve adequate clearance at all angles.

I used the same curved link ends on the short link as the long one has to keep the link from hitting the center of the axle housing when at full turn.

Suspension at resting ride height.

Fully compressed.

Fully extended.

A few more views.

 

[Butcherinhd]

very nice. ive been thinking about doing this to the front of my trail truck to. It came stock locked all the way around think it would be a lil more fun it the front sliped some. dig the spring idea

 

[Hollaitzwillie]

Great looking crawler! How do u like those shocks? And whe did u get that craftsman jack?

 

[Spidernad]

very nice. ive been thinking about doing this to the front of my trail truck to. It came stock locked all the way around think it would be a lil more fun it the front sliped some. dig the spring idea

Thanks!

 

[Spidernad]

Great looking crawler! How do u like those shocks? And whe did u get that craftsman jack?

Thanks!

Ha, I knew the jack would get some inquires. I completely forgot I had it.
I got it at (wait for it...) Sears! lol, maybe 7 to 10 years ago, it works like a real one too. Wrong scale for this though, looks like about 1/4 scale.

Oh and I really like the shocks now that I've got them working the way I want.