moderately engineered desk clamp drawing table holder

screw on clamps with arms angled for better wrists for drawing, also works with keyboards.
blend file easily adjustable

(copied from original post)

Print Instructions:

Everything can be printed in place without supports with at least 10% infill. Just take care of the M14 thread insert and the screw by using 0.1 or 0.15 resolution to make both parts fit perfectly.

Assembling:

1. Push the insert into the clamp body.
2. Put the screw in and test its functionality.
3. Mount the stopper on the screw
4. Place the whole clamp on your desk 

removed hook and added arms at an angle