Tevo Black Widow auto-level sensor mount

thingiverse

Mount required for adding inductive or capacitance sensor to Tevo Black Widow. This mount places the sensor approximately 30mm to the right and 16mm in front of the nozzle. Added v2 mount that works with my extruder spacer: http://www.thingiverse.com/thing:2188117. Used LJC18A3-H-Z/BX sensor, connected as follows: BLUE (-) to PSU ground BROWN (+) to PSU +24v BLACK (sensor output) to a 1N4001* diode (anode), then diode (cathode) to Z MIN input on controller (black wire). Cut wires to original end stop and soldered sensor to black wire on connector. If worried about voltage from sensor causing damage to controller, use 5v zener diode instead. Note: If using glass sheet on top of heated metal bed like I do, this sensor DOES NOT detect the glass but the metal bed under the glass. Can get it to detect the glass by turning sensitivity up high enough, but even then, will still detect metal bed under glass before detecting glass. Make sure to set leveling points to most flat spots on metal bed. My bed is pretty badly warped, but was able to find 3 spots that give me a nice level surface when running auto-leveling. Modified firmware I'm using with sensor: just added an option in Configuration.h called "PROXIMITY_SENSOR" where if defined will enable the sensor. Will see "Black Widow PS" displayed on LCD if enabled. This is a version of the firmware already modified by Robert Mendon for use with BLTouch. Available on TEVO Black Widow Owners Group on Facebook. https://www.dropbox.com/sh/4nuyhwvtw3i0ch9/AACHwd1uls0ZtAQt4xrei2-Xa?dl=0 Be sure to set probe positions and auto-leveling positions in firmware. Values I'm using might not work for everyone. Print Settings: Printer: Tevo Black Widow Rafts: No Supports: No Resolution: 0.2 Infill: 50% Notes: Printed at 50% infill for a little strength