I loved the locking fidget nut and axle system Mcl0vin used, but I found the actual cap part slid around too much on my finger.
I designed this axle and locking cap to have a conceived cap almost the exact size of your finger tip. The cap is also textured for better gripping when doing tricks like passing the spinner back and forth between hands or hopping it between fingers. I also shortened the axle length to make it more snug against the bearing and less wobble.This doesn't effect the spinning because the wider portion of the caps are raised off the axle. Tricks in general tend to be much easier with these 3 design changes IMO.
To get the most out of the texture I would suggest you print both models at .1mm and with the cap portion upright. Technically the axle doesn't really need supports and will print fine without them, but the locking cap does need some support. Due to printing both the cap and the axle screw side down, when you first screw them together it might take a little effort to screw them, but after a few times of unscrewing and screwing them in they should be fine.
Edit: I've added a 22mm version. The larger size does allow it to shift/move on your finger more, so if your purely looking at caps for tricks stick with the original 15mms. Well at least that's my personal preference.
| 22mmcap-axel.stl |
| 22mmcap.stl |
| finished-textured-axel.stl |
| finsihed-textured_cap.stl |
