OrcaSlicer
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SoftFever
Retraction speed at wipe not considered in gcode - can cause extruder stop during print
OrcaSlicer Version
1.8.1
OS version
Windows 11
Additional system information
No response
Printer
Anycubic Vyper, Chiron
How to reproduce
- configure retraction an deretraction speed in printer configuration (in my case Marlin 2)
- retractions are made with print speed during wipe
- detretractions are done with the configured detretractions speed
Actual results
- E-Stepper can loose steps
- Extruder can stop working during print
- Extruder makes unusual noises
Expected results
Retraction move at wipe with configured speed for retraction
Project file & Debug log uploads
Gcode example with retraction speed 45 and detretraction speed 35 on whipe tower test:
;TYPE:Outer wall G1 F6000 G1 X111.635 Y128.579 E5.58807 G1 X111.203 Y129.154 E5.60942 G1 X110.639 Y129.6 E5.63077 G1 X109.98 Y129.887 E5.65211 G1 X109.27 Y129.997 E5.67345 G1 X108.555 Y129.923 E5.69479 G1 X107.882 Y129.669 E5.71615 G1 X107.297 Y129.251 E5.7375 G1 X106.837 Y128.699 E5.75883 G1 X106.533 Y128.047 E5.78019 G1 X106.405 Y127.34 E5.80152 G1 X106.466 Y126.603 E5.82348 G1 F3243.018 G1 X106.718 Y125.908 E5.84543 G1 F1200 G1 X107.111 Y125.349 E5.86572 G1 F1153.815 G1 X107.143 Y125.302 E5.86741 G1 F992.211 G1 X107.712 Y124.83 E5.88936 G1 F909.923 G1 X108.385 Y124.523 E5.91132 G1 F904.65 G1 X109.115 Y124.403 E5.93329 G1 F889.614 G1 X109.851 Y124.478 E5.95525 G1 X110.541 Y124.744 E5.97721 G1 F967.584 G1 X111.138 Y125.181 E5.99917 G1 F1120.316 G1 X111.248 Y125.32 E6.00444 M106 S255 G1 F1200 G1 X111.599 Y125.759 E6.02113 G1 F2498.964 G1 X111.892 Y126.438 E6.04308 G1 F5659.883 G1 X112.069 Y127.451 E6.07362 ;WIPE_START G1 X111.71 Y128.384 E.97362 ;WIPE_END G92 E0 G1 Z51.9 F7200 G1 X108.081 Y125.417 Z51.9 G1 Z51.5 G1 E5.1 F2100 M204 P2500 ;TYPE:Internal solid infill ;WIDTH:0.38292 G1 F6000 G1 X108.591 Y125.199 E5.11568 G1 X109.105 Y125.116 E5.13041 G1 X109.686 Y125.169 E5.14689 G1 X110.169 Y125.343 E5.16141 ; stop printing object retraction_tower.stl id:20482699039392 copy 0 ;WIPE_START G1 F6000 G1 X109.686 Y125.169 E2.54195 G1 X109.201 Y125.124 E.06141 ;WIPE_END G92 E0 M106 S0
Checklist of files to include
- [ ] Log file
- [ ] Project file
This issue can be the root cause of following issue: https://github.com/SoftFever/OrcaSlicer/issues/2753
can you share a project?
I can see the retraction speed is properly set here:
I think that your gcode is done with relative extruder configuration. Also your wipe isn't done with retract speed. If you do a slice with absolute extrusion you can see, that the wipe is done with print speed. Without wipe the speeds are correct set. I attached the 3mf from a test slice with my printer config with wipe.
Why is there always a G92 E0 command, although it's nowhere set in the layer gcodes and it's set to absolute extrusion?
Wipe is considered as a normal extrusion action(extruding while moving the print head). So that's correct.
Wouldn't it make more sense to calculate the retraction length at retraction speed for the wipe at print speed and retract the rest of the retraction with a simple G1 -### F(retraction_speed) after the wipe? So only retract a small portion during the wipe to stay with the extruder speed at the set retraction speed and retract the rest after the wipe.
Otherwise you can't use the wipe function for bowden printers that have high retraction values of about 5mm, because it always runs into the speedlimits of the firmware or looses steps if they are set too high. My Vyper and my Chiron both stopped extruding while printing a pressure advanced calibration part because of this too high speeds.
A new PR has been pushed above that implements this suggestion. Would appreciate some feedback
This is now fixed in 1.9. Please either review and close or provide feedback if not working.