X Carve Style 52mm Spindle Mount with Dust Shoe
Combined the X Carve style 52mm spindle mount http://www.thingiverse.com/thing:694696 with the dust shoe http://www.thingiverse.com/thing:939642.
The dust shoe and the spindle mount bolt together but the vac attachment needs to be glued. Clearance between work surface and the dust shoe is adjusted by moving the spindle in the mount and resetting the Z home position.