What ? This machine is a CNC for 60x120x70mm soft metals engraving and milling.
Why ? This was my first CNC project, so i could attack the learning curve, with limited investment, design is quiet simple, and used as tool to develop other projects.
How ? Design is based on a hand milling machine Proxxon MF70. I replaced dials by NEMA23 stepper motors. It run by eBay drivers controlled by an Arduino. I use ESTLCAM software as interface.