Xe đụng RC (cản TPU)

This is a rc bumper car with really simple conception.

UPDATE 5/9/26 : added seatbelt system

BOM :

• Injora low profile servo 

• 540 brushed motor (45T)

• Cheap ESC

• Some 5mm rods (brass or steel)

• 5mm flanged connector

• some 5x14x5 flanged bearings

• all 4mm hole need a 3mm inserts

• various 3mm screws, and some 2mm for the front wheel

Special instructions :

• print outer bumper with TPU (3 walls, 5% gyroid infill) and put a modifier around screw to increase infill, like 50% (see screenshot)

• Print tire and "oliver" in tpu.

• you can use the provided plastic gears, or use a 12T and 48T gt2 pulleys, with a 112mm belts (i you do, just put 2 wheel without gears.

• You can use any 540 like motor, i think around 1000kv is the best as ratio is low.

Build is straightforward, but don't hesite to ask if you need help.