Another Geeetech A20M purge bucket variation

thingiverse

I'm just another remix of a purge bucket, and I liked the original one. However, I realized that I didn't have enough space in my printer to replicate it exactly, so I redesigned it with minimal supports and more room for filament pieces. I also used a 0.05€ coin to clean the head, which was a great idea. At the moment, I'm using a simplified version without the bucket, but I've uploaded a simple two-color model that I used to calibrate my Geeetech A20M. My code in CURA to switch extruders took a lot of tweaking and remixing from various sources, and it looks like this: Start gCode for Extruder 1: Empty Finish gCode for Extruder 1: ; Begin removing the first extruder G60 S1 ; Save the position of the extruder in register 1 M211 S0 ; Disable software endstops to allow movement outside G91 ; Switch from absolute positioning to relative positioning G1 Z1 F1000 ; Lift the nozzle by 1 mm in relative positioning mode G1 Z0.5 F1000 ; Lift the nozzle by 1 mm in relative positioning mode G90 ; Return to absolute positioning G92 E0 ; Reset extrusion distance (needed for following steps) G1 E-7 F1800 ; Retract filament from old tool G1 X-9.5 F6000 ; Move to X=-9.5 at 100 mm/sec G92 E0 ; Reset extrusion distance on old tool T1 ; Activate tool 1 G92 E0 ; Reset extrusion distance on new tool G1 E40 F180 ; Extrude x mm of filament on new tool G92 E0 ; Reset extrusion distance on new tool G1 E-10 F1800 ; Retract filament G91 ; Switch from absolute positioning to relative positioning G1 Z-1 F1000 ; Move down nozzle by 1 mm in relative positioning mode G1 Z-0.5 F1000 ; Move down nozzle by 1 mm in relative positioning mode G90 ; Return to absolute positioning G0 R1 ; Move to the saved position in register 1 M211 S1; Enable software endstops again End removing the first extruder Start gCode for Extruder 2: Empty Finish gCode for Extruder 2: ; Begin removing the second extruder G60 S1 ; Save the position of the extruder in register 1 M211 S0 ; Disable software endstops to allow movement outside G91 ; Switch from absolute positioning to relative positioning G1 Z1 F1000 ; Lift the nozzle by 1 mm in relative positioning mode G1 Z0.5 F1000 ; Lift the nozzle by 1 mm in relative positioning mode G90 ; Return to absolute positioning G92 E0 ; Reset extrusion distance (needed for following steps) G1 E-7 F1800 ; Retract filament from old tool G1 X-9.5 F6000 ; Move to X=-9.5 at 100 mm/sec G92 E0 ; Reset extrusion distance on old tool T0 ; Activate tool 0 G92 E0 ; Reset extrusion distance on new tool G1 E40 F180 ; Extrude x mm of filament at 3 mm/s on new tool G92 E0 ; Reset extrusion distance on new tool G1 E-10 F1800 ; Retract filament G91 ; Switch from absolute positioning to relative positioning G1 Z-1 F1000 ; Move down nozzle by 1 mm in relative positioning mode G1 Z-0.5 F1000 ; Move down nozzle by 1 mm in relative positioning mode G90 ; Return to absolute positioning G0 R1 ; Move to the saved position in register 1 M211 S1; Enable software endstops again End removing the second extruder