Ball Chair Caster Caps

A friend broke their office chair and needed new caps to hold the casters correctly. I modeled this in Fusion 360 and printed in PETG with like 20 walls so it turned it into 100% infill. I recommend drilling a small hole and using a small screw to prevent the caps from rotating in the legs as that would cause the chair to roll poorly or not at all.

This is for the Isokinetics Inc. Brand Adjustable Fitness Ball Chair available on Amazon at https://www.amazon.com/Isokinetics-Brand-Adjustable-Fitness-Chair/dp/B00QLAIOYM

Yes, we replaced the wheels with better ones also from Amazon. 

I think this is as close as I've come to reinventing the wheel thus far. LOL