New Purge Line - Better, but cause a new issue
So the new purge line is better, but does anyone else see a problem with filament getting stuck to the nozzle. When it squeezes out the initial blob, the z axis does not raise, resulting in melted filament getting stuck around the opening of the nozzle I have found that during the print, the filament on the nozzle can come loose and then merge in to the print.
Prusa, why don’t you raise the z axis when the blob comes out, and then lower the z back to where it was as the nozzle continues to travel in the X direction as it continues the purge?
Thanks, and keep up the awesome work guys!
Best Answer by Patrick McNamara:
@novolumeswitch
;go outside print area
G1 Y-3.0 F1000.0 ; Move the extruder to Y=-3.0, move at speed 1000mm/minute.
G1 Z0.4 F1000.0 ;Move the extruder to 0.4mm above the print surface
; select extruder
Tc
; purge line
G1 X55.0 F2000.0 ; Move the extruder to X=55mm
G1 Z0.3 F1000.0; Move the extruder to Z=0.3mm
G92 E0.0; set current extruder position to 0. Does not extrude.
G1 X240.0 E25.0 F2200.0 ; move the extruder to X=240mm, while extruding 25mm of filament
G1 Y-2.0 F1000.0; move the extruder to Y=-2.0mm
G1 X55.0 E25 F1400.0 ;move to X=55 while extruding 25mm of filament.
G1 Z0.20 F1000.0; move to Z=0.2mm.
G1 X5.0 E4.0 F1000.0; move to X=5mm, while extruding 4mm of filament.
M221 S{if layer_height<0.075}100{else}95{endif}
G92 E0.0
RE: New Purge Line - Better, but cause a new issue
New purge line?? When did that get introduced? Is that a Slic3r thing? I havnt' noticed a change...
RE: New Purge Line - Better, but cause a new issue
Maybe it was a sliver thing then. It used to be a short line, now it’s a blob and then it goes all the way to the right, and then all the way back to the left before printing.
RE: New Purge Line - Better, but cause a new issue
So the new purge line is better, but does anyone else see a problem with filament getting stuck to the nozzle. When it squeezes out the initial blob, the z axis does not raise, resulting in melted filament getting stuck around the opening of the nozzle I have found that during the print, the filament on the nozzle can come loose and then merge in to the print.
Prusa, why don’t you raise the z axis when the blob comes out, and then lower the z back to where it was as the nozzle continues to travel in the X direction as it continues the purge?
Thanks, and keep up the awesome work guys!
The purge line is defined in the Printer Settings, Custom G-code, Start Gcode. In PrusaSlicer 2.2.0, the default purge line code is
G1 Y-3.0 F1000.0 ; go outside print area
G92 E0.0
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E12.5 F1000.0 ; intro line
G92 E0.0
RE: New Purge Line - Better, but cause a new issue
I have this in: Printer Settings, Custom G-code, Start Gcode. Using PrusaSlicer 2.2.0
I don't understand this at the moment as I am new to 3D printing, so I will go and learn about G Code.
;go outside print area
G1 Y-3.0 F1000.0
G1 Z0.4 F1000.0
; select extruder
Tc
; purge line
G1 X55.0 F2000.0
G1 Z0.3 F1000.0
G92 E0.0
G1 X240.0 E25.0 F2200.0
G1 Y-2.0 F1000.0
G1 X55.0 E25 F1400.0
G1 Z0.20 F1000.0
G1 X5.0 E4.0 F1000.0
M221 S{if layer_height<0.075}100{else}95{endif}
G92 E0.0
RE: New Purge Line - Better, but cause a new issue
@novolumeswitch
;go outside print area
G1 Y-3.0 F1000.0 ; Move the extruder to Y=-3.0, move at speed 1000mm/minute.
G1 Z0.4 F1000.0 ;Move the extruder to 0.4mm above the print surface
; select extruder
Tc
; purge line
G1 X55.0 F2000.0 ; Move the extruder to X=55mm
G1 Z0.3 F1000.0; Move the extruder to Z=0.3mm
G92 E0.0; set current extruder position to 0. Does not extrude.
G1 X240.0 E25.0 F2200.0 ; move the extruder to X=240mm, while extruding 25mm of filament
G1 Y-2.0 F1000.0; move the extruder to Y=-2.0mm
G1 X55.0 E25 F1400.0 ;move to X=55 while extruding 25mm of filament.
G1 Z0.20 F1000.0; move to Z=0.2mm.
G1 X5.0 E4.0 F1000.0; move to X=5mm, while extruding 4mm of filament.
M221 S{if layer_height<0.075}100{else}95{endif}
G92 E0.0
RE: New Purge Line - Better, but cause a new issue
@william-m51
Brilliant. Thanks for your help.