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to get a smooth surface of propeller, I used high speed spindle with S=20000RPM, F=500 or 1000mm/min and stepover=stepdown=0.05mm
When I cut my propeller, to create the support, I used wax candles (paraffin) or plaster
To fixed aluminium with wood, I just use super glue 502. When finish, just prise off it.
I used ball mill with R1. About the pic, I take with the phone, so, it only like that. Sorry.
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