Capacitive Z end stop
thingiverse
This accessory bypasses common mechanical switches with increased precision. You can install this frame directly onto your acrylic Sunhokey frame using the same screw that secures the hotend stirrup. I sourced this sensor from Aliexpress: search for LJ12A3-4-Z/BY Inductive Proximity Sensor, type 4mm. Print Settings: Printer Brand: RepRap Printer: Prusa i3 Sunhokey Rafts: No Supports: No Resolution: 0.3 Infill: 100% Post-Printing: Settings This sensor turns on @ 4 mm to metal, and since I have a glass plate, I've added an aluminum adhesive for sensor reading. You'll need a small circuit to read the sensor. The PNP sensor sends the ground signal through my board's endstops sensor. To send the correct signal to the mainboard, you'll require a 12V relay. See the circuit diagram.
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