This is a simple 4wd Antweight wedge style robot that fights in the 150g UK Antweight (US Fleaweight) class.
It utilises a double helical spur gear attached to an n20 motor to drive both front and back wheels also printed with helical spur gears which significantly improves mobility over 2wd robots.
Parts list
n20 motors x2 - secured with cable ties
bidirectional brushed esc
receiver (i use FlySky 4CH Mini AFHDS2A Receiver - FS2A-4CH)
Mini slide switch
battery (i use Turnigy 2s 300mAh)
Tire - i use silicone tires made using my parametric silicone tire hold - https://www.printables.com/model/410699-parametric-silicone-tire-mold
Alternatively old bicycle inner tube can be used
2 x m2.5 25mm bolts and nuts to secure spikes
4 x m2 5mm threaded screws to secure lid
4 x 25mm 2mm steel rod (or m2 bolts) to act as axles
The author marked this model as their own original creation.