Quote:
Originally Posted by DampRobot
You generally ream or bore out the pulleys to get a nice press fit onto the motor shaft. Most pulleys don't come with a bore small enough to ream out for a press fit, so you have to look for the ones that do. Also, keep in mind when you're specing the pulleys that you want to be able to stall these motors against the belts without any worry about the belt slipping, so make sure to double check that the pulleys won't ratchet at stall torque.
Sourceing wise, (Out of) Stock Drive Products/Sterling Instrument has a lot of stuff. You can also check out McMaster, although they generally don't carry all the profiles you want. I've never actually ordered from Gates directly, but I believe it is possible.
Personally, when I'm designing a gearbox for a BaneBots motor, I'd just find a VersaPlanetary that did the trick. They're really quite efficient (especially compared to the previous generation gearboxes and BaneBots gearboxes), and the output shafts are really nice to work with. But if you need really high efficiency or can't use a planetary for some other reason, Gates belts or 32 DP gears are a decent way to get a reduction right off of the motor. |
I'm also a fan of using the 10T 24DP 20* angle pinions banebots sells for both the 550's and 775s as a press fit. SDP-SI has a good line of 1/4" face width nylon and delrin gears to mate with. Both are cheap and easy.