OmniWheel to Feetech STS3215 Servo Adapter

These adapters let the Easy Omniwheel mount onto a Feetech STS3215 servo, commonly used in the LeKiwi and HuggingFace  SO-ARM100  arm.

The EasyOmniWheel_to_FeeTech_Hub.stl is the easiest & quickest to print and seem to work okay on a LeKiwi robot. 
The center hole (where the "key" shape is) is sized for an M4 heat-insert. Go back and look at the original   Easy Omniwheel and you'll see that it's meant to be fixed to a motor with an M4 25mm bolt.

Print this, push in the heat-insert with a soldering iron on the "keyed" side and then mount it to your STS3215 servo. The M3 screws that come with the servo will fit. Mate the Omniwheel onto hub and secure it with the M4 screw.

I made the "Keyless" version with the wheel-hub crescent shapes just in case these didn't work out, but haven't tested them yet on an actual robot.

Modeled in Onshape. printed in 3DFuel Refuel.