Tablet Clamp with 3/8" mount

This is a tablet clamp designed to be mounted on a 3/8" ballhead, or anything with a 3/8" screw!

Started designing it from a need to clamp my new Nexus 7 to my tripod for remote controlling my camera using Helicon Remote. As I finished printing it, I realised it's a damn fine tablet stand for the table.

The screw holes to secure the clamp rails are 3.4mm in diameter, which is what you can find on the back of most computer cases. Used two thumbscrews (for easy adjustment) and two normal scr