NEW REVISION AVAILIBLE AT: https://www.myminifactory.com/object/3d-print-139579
Just a mount- Should work for most laptops under 20 mm. You can get feet for wall mounting here.
Hinge uses M6x35 inbus screw, should work with 1/4" imperial alternative, too.
Assembly instructions: Place the feet as you need, assemble the hinge. Hold the hook on top of your laptop, screw/tape it on the desk.
The hook will not hold the laptop if you put the hinge too high!
Be carefull with the feet or pad them if you plan to move the thing often.