28mm cheap motor adapter for Mini Drill Press from MarkBenson

This is a adapter for a cheap motor from Ebay.

-Mini drill press: http://www.thingiverse.com/thing:144333

Also added a M8 wing nut stl file from here: http://www.thingiverse.com/thing:194458

18/01/2014: Added switch and power holder (I used a 5.5mm power Jack -about 8mm ext.diameter- and a SPST type switch)