PCB Holder for 3D printer bed

A PCB holder that clamp to a 3D printer bed.

I included the Fusion 360 files. I designed this back in 2017 as an attempt to draw circuit board with my printer. Drawing circuit board was a success, but etching PCB with chemicals was a fail.

Used in pair with my sharpie holder : https://www.thingiverse.com/thing:4598914