Nice work as always!

I took apart my 8421 and borrowing some pieces from 8455 I have made this Chassis (I want to design my own cab etc..)

I am using the RC motor off 8421 and M motor for steering.

I will post some photos in a separate thread eventually but I would just like to say what an engineering masterpiece this is...

for the scale its perfect - only thing missing is differentials but they only help inside the house - this beast is meant to be used outdoors anyway

The steering although correct as close as possible to the original tatra - has a lot of free play, not for precise truck trials - perhaps I made a mistake making it too -

I had to reinforce the worm drive a bit and reduce the backlash as much as possible and it handles a bit better now.

The rear suspension layout is superb. perfect in every way in motion in looks and in fuinction.

Edited September 29, 201410 yr by Rockbrick

Thanks! Cant wait to see your version

love the way it flops the wheels over the bumps and if you stare at the main central line of the chassis it hardly moves...

i'm not very good at body work but will try something or other soon it looks weird with no 'head'

Here's a couple of quick photos ... basically I used the parts from 8421 that I had just dissassembled for cleaning, came out more VOLVO/KAMAZ looking than Tatra

but goes to show what a great chassis this is:

I'm glad the chassis works for you! What gear ratio and which output of the Rc motor did you use?

I am using the faster ouput 8 to 24 its pretty quick but chewing up gears... On my second set already.....

Edited October 4, 201410 yr by Rockbrick