Attach to the bit and then put a copper plat on top of the wood. Done. 🙂
http://www.instructables.com/id/Make-a-Tool-Length-sensor-for-Stepcraft-2-CNC/
Attach to the bit and then put a copper plat on top of the wood. Done. 🙂
http://www.instructables.com/id/Make-a-Tool-Length-sensor-for-Stepcraft-2-CNC/