Robot wheels with rubber band treads

thingiverse

Robot wheels to go along with my N20 motor mounts https://www.thingiverse.com/thing:1547777 This 3D printed robot car wheel is designed to fit snugly over a Pololu micro metal gear motor, but it should fit any N20 size motor. (I specifically recommend Pololu's because they have better motor brushes than the cheap generic ones, and they will last longer). For a rubber tread, use a 1/2" wide rubber band. The default parameters for this wheel should fit a 5COL small Ranger Band (available on Amazon or 5COL.com). Ranger Bands cost less than $10 for 40 of the smallest size. N20 motors cost $10-$20 each and come in a variety of gear ratios and voltage ratings. You can even buy some with an encoder pre-installed on the back, but with the encoder, these will no longer fit my no-tools motor mounts For slightly larger robot wheels, try searching Amazon for "Lobster bands" instead. At the time I am writing this, you can get around 500 lobster bands for $20. (I do not have any affiliation with 5COL or Pololu. I just like their products) Add a thin layer of rubber cement under the rubber bands and let it set to prevent tread slippage.