Sanding wheel, Lamellar Grinder
thingiverse
I needed to post-process some rounded objects from multiple angles and really didn't want to do it by hand. So I printed this small device, attached a 3mm welding wire as an axis and glued strips of sandpaper to the unit. Combined with a drill, it significantly reduces manual labor and makes sanding much easier. Since the drill and device create sufficient airflow/blow against the target, I didn't have any issues drying-sanding PLA. https://youtu.be/Hf2k6ma2GJU WARNING: After trying this setup for several minutes at low speed with a Dremel, it unfortunately killed my 2.5-year-old device. Either it was an unfortunate coincidence or the Dremel can't handle the load. I strongly advise against attempting this.
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