Motor Clamp Ø 40 mm

Adapter for motor Ø 40mm.
[I use this motor][1]

[1]: http://www.ebay.com/itm/152060173967?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Drill press : http://www.thingiverse.com/thing:754248/#remixes
Clamp adapter : http://www.thingiverse.com/thing:1814587/#files