The ‘Circuit Graver’ by [Zach Fredin] is an unconventional PCB milling machine, utilizing many 3D printed parts, the familiar bed-slinger style Cartesian bot layout and a unique cutting head.

I bought a small old and rather battered milling machine. It is a Sieg X1 ... Day 1 was spent un-seizing and lubricating parts – particularly the bed, and getting the leadscrews to move reasonably (it ...