Put a bearing in the frame for the motor shaft to run in, then the motor has support at the shaft and the 4 fasteners on the opposite side. That would provide maximum support for a toothed pulley ring on the outside.
Another possibility is electric skateboard wheels with built in motors. They can be some pretty tough units. This guy takes his Maxfind board off a few jumps onto a street with no damage. It has one rear wheel with a motor. The board is designed for cruising, not stunts, but can still take plenty of abuse. https://youtu.be/bFi55fSqdZY?t=1915 Jump to 31:55 if the link doesn't take you to the time. Replace the urethane wheel with your toothed pulley or gear. The width of the wheel could be used for wider gears to spread out the load so the gears will wear less and be more resistant to breaking. On Wednesday, October 12, 2022 at 11:48:45 AM MDT, Chris Albertson <albertson.ch...@gmail.com> wrote: I'm actually thinking of using belts and motors where the outer housing spins. I could press-fit a toothed ring around the motor and make a timing pulley with a motor inside. The ring would need to be metal as it would get hot. A motor like below might work. See that in this kind of motor the shaft is welded to the housing and the entire motor housing spins. getfpv.com/brotherhobby-avenger-2806-5-motor-870kv-1300kv-1460kv-1700kv.html <https://www.getfpv.com/brotherhobby-avenger-2806-5-motor-870kv-1300kv-1460kv-1700kv.html> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
