Clamps For The Magnetic Lock Modular Articulated Arm

Measure the thickness of the surface you want to put the clamp on, and choose accordingly. 

I designed them this way to prevent the excessive flex one-size-fits-all clamps have, especially on thinner surfaces. The screw thread is about 20mm long, so adjusting for material thickness and flex, it should be possible to clamp on 10mm and upwards surfaces.

I suggest printing in the orientation they already are, with normal supports for the screw hole.