This familiar footprint manages to contain everything you need for a three-axis machine. The purple boards slotted into the pairs of SIL headers are Pololu Stepper motor drivers. Going this route ...

On the electronic side, he replaced the controller that came with the kit with an STM32F469 discovery board and an Arduino CNC shield. He has a G-code controller from a previous project, ...

and an Arduino-compatible CNC shield. The laser module, as you've probably already guessed, is the laser that cuts through ...