Rostock Penholder - Proximity Sensor - Modeled for Geeetech

Update: My new hotends are longer than the original ones so I needed to extend the mount for the prox sensor.

I can upload a simple schematic to use a 12Volt source on a 5V binary input. If you don't have programmable board then make sure you have a NPN or PNP determining whether or not your contact for auto leveling is NC or NO