Small milling machine conversion to CNC

[bruce.desertrat]

Conceptually, it's a controller, (which can be a cheap as some $20 Arduino-based RAMPS system), a beefy power supply, and three hefty steppers.

Here's a Make Magazine article on doing it with one of those cheapo chinesium benchtop ones.https://makezine.com/projects/cnc-mi...-kit-hardware/

CNC Zone is probably another good place to start: https://www.cnczone.com/forums/