Broke the shaft of the 9" HF elliptical just behind the knuckle. It's weaker than the standard shafts because of the port for battery cable going to the shaft. The OEM replacement wasn't outlandishly expensive - but the shipping sure was! So, I designed this to slip on over the remainder of the bucked off shaft. Sort of like Captain Hook's peg leg, but with all the functionality of the original.
It's a press fit, so I didn't actually have to pin it with the hole. I did it in resin, so YMMV.
Let me know if it needs tweaks. Thanks again Steve for the space to post these files.