My 3D printer now does auto-leveling using a proximity sensor and an external control board. This DIY PCB article describes completion of printed circuit board used in this project.
Tag: auto level
3D Printer Auto Leveling DIY
Getting the first layer right is the holy grail of 3D printing. This is hard if your print bed is not completely level. Here’s the story of why and how I added 3D printer auto leveling to my Sunhokey Prusa i3.