He’s eschewed a router or extruder, and instead fit an off-the-shelf CNC machine kit with a sandblaster ... an STM32F469 discovery board and an Arduino CNC shield. He has a G-code controller ...

There are probably almost as many DIY CNC designs as there are DIY CNCs. And there’s nothing wrong with that! We really liked [maxvfischer’s] documentation on GitHub for a machine he made ...