This print is a direct replacment for the standard mounting brackets that come with the non-magnetic dust shoe for the LongMill from Sienci Labs.

It allows the user to remove the dust shoe from the machine without removing the T-slot nuts from the aluminum extrusion. It doesn't require any aditional hardware to use, but it is less fidly if you add six(6) M3 nuts and six(6) M3x10 socket head cap screws.

one screw per side is used to limit the latch rotation so it doesn't come off by accident. The other two screws preform double duty by stopping the dust shoe from dropping as soon as the latches are released, and help keep the dust shoe square when adjusting the elevation.

Obligatory video link

The zip file contains Parasolid and STEP files for your modding convience. The open source CAD for the LongMill and dust shoe can be found here 

This was a fun quick project. If you make any mods or improvments please let me know. I'd love to see your work.