Hi Mark! First time commenting here. Thanks a lot for sharing your resources, and I have some questions regarding this hub design.
How long is the axle on this yoyo? On the drawing it looks like close to 14mm but it looks shorter in the product photos?
Are there “gear teeth” cut into the step of the hub? On the POM yoyos I’ve taken apart, I’ve noticed they all had the star burst design that bites into the plastic, which I’m assuming helps the hub stay in place.
The tangent uses a 12mm axle. There’s room in there to swap to a slim C bearing without changing the axle.
The hub does have teeth cut into it, this is not modeled, but I spoke with the machinist about it before manufacturing anything. Without these the hub can/will slip.
I’ve never experienced any issue personally with the wall angle being too steep, but I know at least one instance where that’s been a minor problem. See here.
Thanks.
After looking at the Deduction and it’s intentionally unforgiving play, it reminded me of other throws but I couldn’t remember which and I didn’t want to start any arguments.
In the video you linked the audible clipping as the string path slows on the rim then jumps into the gap seems like wasted energy at best.
I prefer the feel of an organic drop into the gap, even if that’s a small radius inside another wall shape