BLTouch Wanhao Duplicator i3 Mount V2.1

thingiverse

This is a BLTouch mount for a Wanhao Duplicator i3 V2.1 and various knockoffs of this model. Most other sensor mounts attach to the back of the lower bearing carrier, but I've already got a cooling fan mounted in the rear so that's not an option for me. I needed to design a part that would fit onto the front mount where the old/stock cooling fan was situated. Keep in mind that different machines might have varying nozzle heights, so you may need to add shims to this part to get the correct 8.3mm offset (measured between the hotend nozzle tip and the base of the BLTouch sensor). This part is 1.75mm thick and prints at a .1mm layer height. I also used m3x6 bolts and nylock nuts to secure the BLTouch mount to the bracket. You can use the screws and nuts that came with the BLTouch to attach the sensor to the mount. My Marlin firmware settings for this are as follows: These settings under the Z probe options: define X_PROBE_OFFSET_FROM_EXTRUDER 34 // X offset: -left +right [of the nozzle] define Y_PROBE_OFFSET_FROM_EXTRUDER -50 // Y offset: -front +behind [the nozzle] define Z_PROBE_OFFSET_FROM_EXTRUDER -1.8 // Z offset: -below +above [the nozzle] Auto bed leveling (Bi-linear): // Set the boundaries for probing (where the probe can reach). define LEFT_PROBE_BED_POSITION 35 define RIGHT_PROBE_BED_POSITION 194 define FRONT_PROBE_BED_POSITION 10 define BACK_PROBE_BED_POSITION 150 These settings work for my machine, but your printer might be different so experiment with them and find what works best for you. Note that the Z-offset may not be suitable for your printer and you'll need to calibrate it. I recommend following this guide: http://web.archive.org/web/20170319023213/http://media.wix.com/ugd/f5a1c8_20aa9a75b70d46d3849140fb4d6b6e31.pdf