RC mattrax for 1/10, 1/12 scale with rubber tracks

3D printed fully functional mattrax for 1/10 and 1/12 scale RC cars. I created these for my WLtoys chinese copy 12428. The vehicle is highly customized though with a new base and tube frame. The only thing stock are rear and front axles, but the tracks will fit stock 12428 also.

BOM list for printing of one track:

Drivewheel - 1 pc
Front wheelie - 2 pcs
Wheelie small - 8 pcs
Spine - 1 pc
Wheelie link - 4 pcs
Inner frame - 1 pc (mirror for other side of vehicle)
Outer frame - 1 pc (mirror for other side of vehicle)

The front travel limiter is suitable for 12428. Rear one is case by case.

Parts required:
Rubber tracks - 4 pcs
https://www.aliexpress.com/item/Remote-Control-Racing-Car-Tracked-Wheel-Tire-Front-Rear-Climbing-Off-road-DIY-Chassis-Tracker-for/32899304910.html?spm=a2g0s.9042311.0.0.27424c4ddEQLlO

Central bearings - 8 pcs (17x23x4 mm - 6703ZZ)
https://www.aliexpress.com/item/10pcs-6700ZZ-6701ZZ-6702ZZ-6703ZZ-6704ZZ-6705ZZ-Ultra-Thin-Wall-Metal-Shielded-Bearing-Ball-Bearings/32896374995.html?spm=a2g0s.9042311.0.0.27424c4ddEQLlO

Wheel bearings - 40 pcs (3x6x2.5 mm - MR63ZZ)
https://www.aliexpress.com/item/ZYS-precision-high-speed-spindle-bearings-708C-P4-HQ1-Ceramic-Balls-708-8mmX22mmX7mm-ABEC-7/32814152227.html?spm=a2g0s.9042311.0.0.27424c4d3q8apN

Screws - M3x8 32 pcs for small wheelies (I used countersunk head)
M2.5x12, 32pcs
M2x8, 8pcs for limiters

Washers for the wheelie links to better articulate - M2.5 32 pcs