very long retract at end of print in gcode - why?
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Hi.
I'm using Mattercontrol, and I love it. I export the sliced files so that I can use octoprint because my printer is in the loft. (also like the video monitor, remote switch off at end and other features of that)
Anyway, after my model is printed, I get a very long retraction - it takes a few minutes!
In my gcode towards the end I have
(all the code to print the model>
...
G1 Y107.2 E6757.767
G1 X100.2 Y108.56 F12000
G1 Y111.43 E6757.835 F1800
; MatterSlice Completed Successfully
G1 E6752.838 F2400
G1 E6747.841
G1 E6742.844
...
<then many more lines where E value reduces by 5 each time>
...
G1 E6.991
G1 E1.994
G1 E-3.003
G1 E-8
G1 X93.4 Y118.83 F12000
G1 X86.6 Y126.23
G1 X79.8 Y133.62
G1 X73 Y141.02
G1 X66.2 Y148.42
G1 X59.4 Y155.82
G1 X52.6 Y163.22
G1 X45.8 Y170.61
G1 X39 Y178.01
G1 X32.2 Y185.41
G1 X25.4 Y192.81
G1 X18.6 Y200.2
G1 X11.8 Y207.6
G1 X5 Y215
M104 S0 ; turn off temperature
M140 S0 ; turn off heat bed
M106 S0 ; turn off layer fan
M84 ; disable motors
; filament used = 6757.8
; filament used extruder 1 (mm) = 6757.8
....
all the rest of the comment lines at the end of the slicer generated gcode)My printer > Gcode > end gcode> looks like this:
G1 E-[retract_length] F[retract_speed]
G90
G0 X5 Y215 F[travel_speed]M104 S0 ; turn off temperature
M140 S0 ; turn off heat bed
M106 S0 ; turn off layer fan
M84 ; disable motorsMy mattercontrol printer / features
unload filament length is 50mmIn slice settings > filament> retraction
retract length is 8mm
retract speed is 40mm/sMy octoprint "After print job completes" script looks like this: (but I don't think we every get there)
G91 ; Set to relative mode
G1 Z10 ; Move 10mm up
G90 ; Set to absolute mode again
G0 X1 Y1 ; get right out of the wayMy question is WHY all this long retraction? Where is it getting these numbers from?
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I'm looking to connect my Pulse XE via Octoprint. What was the process for you to successfully do so?
Regards,
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It's likely retracting in absolute from your last E value which is E6742.844
Try changing your end gcode to this
G92 E0
G1 E-8 F2400
G0 X5 Y215 F3000and see if that resolves it
