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"Lotus Root" Spool

by vik Mar 24, 2015
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Hi Vik, great design! I am about to modify this a bit to be cut with a laser cutter, I am wondering what the squares are for in the centre of the big washers?

You won't need the squares when lasercutting, they are a CNC hack: They break up the scrap centres into small enough pieces to go down the dust extractor without catching on the router hardware. Otherwise I'd need to put holding tabs on, chip them out manually, and they spoil the smooth inner bearing surface unless you do a lot of careful sanding.