Don't have a sanding machine? Just use these sanding plates with your common drill.

thingiverse

I was too stingy to buy a grinding machine. So i just printed these grinding plates for my drill. ------ What you need in addition to the print: - 1x M8x 40 hexagon screw (might be longer) - 1x M8 hexagon nut - square pieces of sanding paper. best: 135mm x 135mm - optional: large washer (this is the best way to distribute the force of the nut on a large part of the plate. You don't have to tighten the nut too much, the paper will hold anyways) -------- tips & tricks: If your'e sanding PLA prints, it will help to add some drops of water to cool your print, it could melt otherwise. Also: don't let the machine run to fast. DON'T TOUCH THE PLATE WHILE SPINNING! --------- print settings: resolution: 0.2 mm nozzle: 0.4 mm infill: 20% cross 3d pattern filament: PLA walls: 5 (3 are probably enough, though) Print 'pressplatte.stl' upside down (flat side on the bed) This print is not really demanding. I used Cura's CROSS 3D infill pattern because I like it. Others will work.