Anycubic Mega X Marlin 1.1.9 with BLTouch

thingiverse

Hello, I've customized the i3 Mega Custom firmware for the Anycubic Mega X. You can now utilize the BLTouch feature from Davidramiro's version. The Z offset is set to 0. If you have installed the BLTouch holder, configure the Z offset using the command M851 Z+x. For instance: M851 Z-2.8 The Y offset is -24mm. I've set the mount length to 27.3mm. You can adjust this in Cura, as shown in the example picture. Be sure to deactivate even scaling for this setting. Be cautious with the offset settings, as they will affect your ultrabase's performance. This firmware is designed for TMC2208 drivers. If you're using the original drivers, you'll need to reverse the direction in Marlin's firmware. Have fun! Remember that all work on this firmware is done at your own risk. For a manual on BLTouch connection, visit: https://cdn.thingiverse.com/assets/58/ab/fd/e6/1b/BLTouch_on_Anycubic_I3_Mega.pdf Cura Settings: Start Code: G21 ; metric values G90 ; absolute positioning M82 ; set extruder to absolute mode M107 ; start with the fan off M280 P0 S160 G4 P100 G28 X0 Y10 ; move X/Y to min endstops G28 Z0 ; move Z to min endstops G29 ; start autoleveling G1 Z15.0 F{speed_travel} ; move the platform down 15mm G92 E0 ; zero the extruded length G1 F200 E3 ; extrude 3mm of feed stock G92 E0 ; zero the extruded length again G1 F{speed_travel} M117 Printing... G5 End Code: M104 S0 ; turn off extruder M140 S0 ; turn off bed M84 ; disable motors M107 G91 ; relative positioning G1 E-1 F300 ; retract the filament a bit before lifting the nozzle, to release some pressure G1 Z+0.5 E-5 ; move Z up a bit and retract filament even more G28 X0 Y0 ; move X/Y to min endstops, so the head is out of the way G1 Y180 F2000 M84 ; steppers off G90 M300 P300 S4000