Thin sander
I made for a specific use, is based on https://www.thingiverse.com/thing:1663529 but not remix.
I designed it for a 0.8mm nozzle, but it will work with 0.4mm too, the screw hole is 3mm, no need support for print.
For 0.8 print: 60% infill, no support, 0.32mm layer height, ender 3 printer. The plate is print separately with 0.28 layer height for better use of the printer.