please note rotate the screw by 45 degrees and use supports. I need to adjust the tolerances for the screw as well. I will do that asap.

ok. I've updated the model, running a print test now. It's just tree supports, and made the threads less likely to bind. 

This is my own design, from here: [https://www.thingiverse.com/thing:3977172](https://www.thingiverse.com/thing:3977172)

I've updated it for my Bambu A1 Mini. It's a bit tight, but after unscrewing and rescrewing a few times it opens and closes easily.

No vitamins needed! Just print and go. This is a complete redesign. I have the original cad files, but would prefer to keep those unless either of the folks I remixed want to look at them.

I liked Perinski's modification of Andymeister's sander. Both of these designs need additional hardware. So I added a screw.