motor clutches

[AlexH]

you could hack the gearbox out of a cheap cordless drill like a harbor freight 900rpm with 3/8" chuck or the ollies brand equivalent


they accept 550 size motors and the output shaft thread is 3/8-24


i wrote an instructable on the process of hacking the gearbox a while ago

http://www.instructables.com/id/Hack...rs-for-/#intro

hope it helps...

[roystur44]

I'm surprised that VexPro doesn't have a small magnetic/slip clutch attachment for the VersaPlanetary Gearbox. Hint hint cough cough.

Building robots would be so much easier.

This is what you need.

http://www.mcmaster.com/#torque-clutches/=lx8mgg

Bryce,

I've made one from a delrin spacer. I parted the shaft into two pieces Reamed one end of the spacer to the shaft diameter and .002 over the shaft on the other end. I also cut a oring groove on the outside of the spacer with the bigger hole. I band sawed the spacer across the diameter and used a small oring over the outside to create the tension. I pressed one the spacer to the one shaft and inserted the shaft into the spacer. It worked pretty good.

We later changed out the mechanical spacer clutch and used a Jag in current sensing mode to make a software clutch.