joekutz
Case and disc: Laminat wood
Axle and bearings: Old VCR
Motor and gearbox: Bread slicing machine
Speed regulation: Wall outlet light dimmer
Reverse direction: By changing the polarity between rotary and stationary coil
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A knife sharpening machine with a sandpaper disc
To make knifes and blades very sharp, a flat grinding surface is needed. This project descibes a DIY sandpaper disc grinder.
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