Shopvac Shapeoko2 spindle mount

Another part for my spindle mount for the 52 mm quiet spindle from Inventables. The shop vac hole is 31mm and can be combined with http://www.thingiverse.com/thing:640799/#files mount and http://www.thingiverse.com/thing:694696 dust shoe. This file can also be found here http://www.thingiverse.com/thing:640799

I have included the file in dxf and fbx format if anyone wants them