Dremel Bit

thingiverse

So, I misplaced my Dremel sanding bits and wasn't in the mood to go buy some more. I knew that M3 screws fit the Dremel, so all I had to do was 3D print a sanding bit with a hole for the screw and superglue a scrap piece of sandpaper, and I'd have a cheap new sanding bit! You can take this idea and modify it to have bigger or smaller diameters or even a plate disc. The picture shows a 5mm black EVA foam glued to the piece with barge cement and then added with the same method. The worn-out sandpaper is V1, while the brand new V3 has a smaller hole diameter so the screw doesn't wiggle and a bigger hole for the screw head. To print this bit, use your Prusa printer without rafts or supports at 0.15 resolution with 20% infill using fast honeycomb in S3D. You need an M3 screw (at least 22mm long), sanding paper of your choice, and super glue. Follow these steps: Screw the M3 screw through the hole, then superglue the sandpaper, and finally sand until fatigue attacks.