The Omni Wheel (No Bearings Needed) - OLD VERSION

thingiverse

THIS IS OUTDATED!!! LINK TO NEW VERSION:http://www.thingiverse.com/thing:1888849 3D Printed Omni Wheel! Insert the filament through the Double Main holes, and then leave 0.5cm on each side. Then, use a soldering iron to melt the plastic flush to the side of the body. If you can't do that, just leave a bit less and either tape it or glue it. You don't need any bearings. Uses filament to spin rollers. This design takes about 6 hours to print in total. Filaments: Any ABS/PLA or other normal hard plastic will work. Some type of rubber filament such as Ninjaflex Flex TPU/Cheeta (what I used) is recommended. Otherwise, the wheels will slip around, but it still kinda works. To Print: 8 Rollers / Wheels 1 Double Main Body Print Settings: Printer Brand: RepRap Printer: Prusa i3 original Rafts: No Supports: Yes Resolution: 0.1 For Double Main + 0.2 for wheel Infill: 25% for Double Main + 40% or more for wheel Notes: Please use 40%+ infill for the wheel, or else it will be lopsided because the inside will have only a few grid lines and it will bend in certain spots. Use Support only for the Double Main body because the bottom has the holes for the wheel. Post-Printing: NINJAFLEX TIPS Ninjaflex can be really annoying, especially with the new Cura 2.3! Please remember to change INFILL SPEED if you don't, your printer will jam with Ninjaflex. By default, Cura 2.3 uses 100mm/s for infill, which will never work for Ninjaflex. Also, I had to print each wheel one by one. You don't need to do this, but I was having weird issues. If you have some problems printing multiple wheels, I recommend just printing one at a time.