Ryobi Leaf Blower Motor Coupler

Our Ryobi Blower stripped it's coupler which appears to be plastic. Not sure why. But, you can not buy just the coupler. The replacement parts online are the entire motor assembly which includes the coupler. But, we only needed a $0.30 part (to print in PLA, probably less in mass production).

I have included the STL and the OpenSCAD model for the part. Measurements were done with a caliper and are only approximate. But after replacement, it worked great.

Blower Model: RY40403A (Should also work with RY40403)
Motor Model: HM-312879001