MiniSumo Wheel (Economy Gearbox )

thingiverse

These wheels are designed for use with "economy" or "low cost" plastic gear motors and cater specifically to Mini-Sumo and small robots with rubber band tires. Instructions This wheel design originated from Creo Elements and was printed using a Printrbot Simple Metal 3D printer via Repetier Host with Slicer. These wheels are carefully engineered to fit #16, #31, or #72 rubber bands with an allowance for up to 10% stretch in the band. They feature performance alongside a wider selection of rubbers that remain more stable and resistant to slipping sideways during rotation. Although they may be fitted with the standard #16, double-sided tape may be required to prevent them from sliding off sideways - not much slipping is noticed while in rotation. For maximum stability and reduced likelihood of rolling off the sides, larger wheels such as the wider bands are recommended especially when a strong lateral force is exerted on them - for instance during an opponent's push - larger wheels are less prone to lifting the rims significantly due to these forces. The best choice of tires depends largely on location but in some cases certain tires may prove better performing. The makers have given Printrbot access thanks to Tanghall Smart Tech Club, England - who generously allowed the club's facilities and equipment to be made available.