One of our client asked us to install a lamp on the suspended drywall ceiling which is normaly used on concrete ceilings. As it was impossible to mount a hanger hook on the real ceiling and the original lamp's covering cone did not stay properly on top I have designed this 3 piece replacement thing.

The helper is not part of the final installation - it just helps you to keep the sole centered on the drywall ceiling hole while you fix the sole on top using drywall screws.

In order to mount the hook you'll need two metal parts:

• an M4 threaded insert
• a hook with an M4 thread

0.2 mm layer height, 20% infill, no supports are OK. If you want a bit smoother cone consider to print it using 0.1 mm layer height instead.

I have uploaded one set for 40 mm holes and another one for 68 mm holes. Source CAD files also attached so feel free to alter them accoring to your needs (as Fusion 360 is unable to use parameter for ISO thread you have to change the threads on the sole and on the cover by hand).