Compact M8 5V inductive Z-probe sensor mounting bracket for cr-10 ENDER-3 or similar printers

thingiverse

A compact M8 inductive sensor is designed for adding an accuracy-reliable Z probe to your Creality printer. It will enable Auto bed Leveling on your low-cost 3D printer. https://www.youtube.com/watch?v=UcnPHJAiUlg BOM: 1x Inductive sensor M8 DC5V NPN Normal open https://www.aliexpress.com/store/product/trianglelab-M8-inductive-proximity-sensor-DC5V-3-wire-2mm-for-3D-printer-Z-probe-auto-bed/1654223_33006152423.html 3x wires with dupont connectors 2x M3x12-20 screws 2x M3 nuts 1x spring steel sheet with PEI sheet or PEI powder coating steel sheet https://www.aliexpress.com/store/product/trianglelab-235-X-235-ender-3-Double-sided-Textured-PEI-Spring-Steel-Sheet-Powder-Coated-PEI/1654223_33008374363.html 1x Arduino Uno with 6 dupont wires Instruction: 1 Flash a Bootloader for your board https://letsprint3d.net/2018/07/22/guide-how-to-flash-a-bootloader-on-melzi-boards/ https://www.youtube.com/watch?v=fIl5X2ffdyo&t=491s 2 Upload Marlin 1.1.9 Firmware with ABL enabled https://letsprint3d.net/2018/07/31/guide-how-to-setup-auto-bed-leveling-ender-3/ https://github.com/LetsPrint3D/ender-3-marlin-abl-firmware-1.1.9 Change the probe offset in the configuration.h to: #define X_PROBE_OFFSET_FROM_EXTRUDER -35 #define Y_PROBE_OFFSET_FROM_EXTRUDER 0 #define Z_PROBE_OFFSET_FROM_EXTRUDER 0.9 3 Mount the sensor to your print head cover. Ensure the sensor tip is 1MM higher than your nozzle. 4 Replace the print surface to the spring steel sheet. 5 Wiring and cable management: Brown → +5V Blue → GND Black → Signal (Zmin) 6 Testing the probe and tuning Z probe offset 7 Tuning the PID 8 Enjoy happy printing.