Geeetech i3 Pro B extruder wiper

thingiverse

This is an extruder wiper. I was tired of cleaning each time the extruder with tweezers before printing and having a ton of strings everywhere so I copied the idea from @GusmanBjork and created a wiper with a kitchen's silicon brush, so it gets clean automatically before each printing. For the wiper itself I have used kitchen's silicon brush where I've shorten the bristles of the brush and made a slit in the middle to insert the support. In my case: - The bristles are 17 mm long - The bristles' base, where the support is inserted in the slit, is 4 mm thick Here is my start script that you may have to adapt depending of your printer and homing position: G21 ;metric values G90 ;absolute positioning M82 ;set extruder to absolute mode M107 ;start with the fan off M117 Homing ; G28 X0 Y0 ;move X/Y to min endstops G28 Z0 ;move Z to min endstops M117 Cleaning ;display the text "Cleaning" G1 Z3.5 F9000 ;move the platform down 3.5mm G1 Y80.0 F1500 ;move to beginning of brush G1 X1.0 F1500 ;offset head of 1mm G1 Y38.0 F1500 ;move to end of brush G1 X0.0 F1500 ;offset head of -1mm G1 Y80.0 F1500 ;move to start of brush G1 X1.0 F1500 ;offset head of 1mm G1 Y38.0 F1500 ;move to end of brush G1 Z15.0 F9000 ;move the platform down 15mm M117 Init extruder ; G92 E0 ;zero the extruded length G1 F200 E3 ;extrude 3mm of feed stock G92 E0 ;zero the extruded length again G1 F9000 M117 Printing ;