magnet handle

I loved the original part, but it didn't fit well, and then I wanted to put larger magnets in too.
So here's a pair of parametric files for any size round or square magnet.

These are designed to be tight -- you can probably press fit the magnet into the wide end and it will probably stay once you get it in. However, the hole is tapered and gets a bit looser towards the other end. That way, once you get the magnet in, you can push it all the way to the bottom (with a rod for the small magnets). The bottom is only one layer thick (so your bed leveling needs to be good!) which puts the magnet very close to the end while still holding it in.

I made a plug for the round magnet, so you can press fit the magnet in and then press fit the plug in after it. Both the handle and plug are in the same part; I usually separate them in Cura and then print in one-at-a-time mode.

I didn't make a plug for the small cube magnet; I usually just run the extruder a bit with the tip in the hole and let it fill up. (Marlin "load filament" mode is about perfect.)