I wanted to use @AL_3D's under desk dock mount, but I have the Gen 1 dock.
Size specifications are the same except for the Gen 1 is about 33mm thick and the Gen 2 is 31mm. Slots were also added where ports would have been covered.
I also resized the holes to 4mm in diameter and added a countersink. Did not keep the rounded edges on the tabs to simplify printing.
The author remixed this model.
Made the bracket a few mm bigger to fit the Gen 1 docks. Added clearance slots and changed the screw holes.