The open-source grbl project has produced software that allows an Arduino to control a three-axis CNC machine – it is the software within ‘3018’ and related low-cost Chinese-made CNC desktop routers.

A decent 3D printer can be had without mortgaging a small country, and the honor roll of CNC router builders is long ... STM32F469 discovery board and an Arduino CNC shield. He has a G-code ...