Steering mount for Tatra OpenRC Trail Truck by benzingtown 3d model
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Steering mount for Tatra OpenRC Trail Truck by benzingtown

Steering mount for Tatra OpenRC Trail Truck by benzingtown

by Thingiverse
Last crawled date: 3 years, 3 months ago
Low profile servos I used: https://www.aliexpress.com/item/33041455890.html, Attiny is calculating servo signal for second axle (less rotation)
Steering arms are M3 stainless, but will be switched to M4 stainless, steering horns may also change, as I use only 30% of possible servo rotation --> bad steering force
I didn't pay much attention to printability during design, so support is needed when printing...
Update Nov 7 2020:
added C-file for ATtiny and sketch how to connect (no schematic available, I put everything together on a perfboard
added modified (shorter) steering arms
there are a few modifications (edge sanding + 2 screws on the very front axle) necessary to give the steering more room (pics added)
new M4 ball joints: (needed some sanding, see pics)https://www.aliexpress.com/item/4001061838272.html
External BEC is mandatory, I fried my (cheap) ESC because the servos draw a lot of current!
External BEC I used:https://www.ebay.de/itm/DC-DC-Buck-Converter-200W-4V-40V-8A-Step-Down-Voltage-Power-Module-XL4016/162716874047?hash=item25e2ae753f:g:C7MAAOSwUwFZ5vb8
For turn indicator you can use something like this:https://www.ebay.de/itm/Orange-Blinkende-LED-5mm-Blinkt-Flash-1-5Hz-Diffus-E6-6/303730671714?hash=item46b7c24062:g:EgUAAOSwLFJfirta

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