Please make retraction lenght parameter when printing using single extruder multimaterial so it doesnt clog the extruder gears with hot fillament without a way to change it in ui #1365

New Issue

MrUnknownDE · 2026-04-05T17:28:20+02:00

MrUnknownDE commented

2026-04-05 17:28:20 +02:00

Originally created by @KristijanKljajic on 12/13/2025

Is there an existing issue for this feature request?

I have searched the existing issues

There are similar requests to make all parameters user-changable but this one is alarmingly frustrating since it litelary breaks the machine with no way to avoid it, the exact issue i am refering to is that there is no or no obevious way that i can find to change the retraction lenght on fillament change when using single extruder manual fillament change feature, on my printer it always pulls the molten fillament into the extruder gears and clogs them and jams them so i have to disasemble the extruder after every try to print with fillament change since the "fillament change g code" only runs after the seamingly invisible gcode already has messed up the extruder: Please add all perimeters aroud it especially the retract settings like this to be tweakable.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

Add retraction settings that actually apply to the multimaterial manual fillament change.

Describe alternatives you've considered

I have considerd changing the changable flilament retraction and fillament change gcodes but the problem seems to be in the part of the gcode that the slicer adds that apears to be hardcoded.

Additional context

The fillament gets pulled some seamingly unchengable lenght which is also seamingly imposible to turn off and it draws soft molten fillament into the extruder gears where the chunks break off and totally render the machine unusable unable to get past the first fillament change without disasembly after every fillament change and changing the user changable parameters does nothing to stop or modify that part of the gcode from ruining the extruder and that print, this feature is CRITICAL.

*Originally created by @KristijanKljajic on 12/13/2025* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? There are similar requests to make all parameters user-changable but this one is alarmingly frustrating since it litelary breaks the machine with no way to avoid it, the exact issue i am refering to is that there is no or no obevious way that i can find to change the retraction lenght on fillament change when using single extruder manual fillament change feature, on my printer it always pulls the molten fillament into the extruder gears and clogs them and jams them so i have to disasemble the extruder after every try to print with fillament change since the "fillament change g code" only runs after the seamingly invisible gcode already has messed up the extruder: Please add all perimeters aroud it especially the retract settings like this to be tweakable. ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like Add retraction settings that actually apply to the multimaterial manual fillament change. ### Describe alternatives you've considered 1. I have considerd changing the changable flilament retraction and fillament change gcodes but the problem seems to be in the part of the gcode that the slicer adds that apears to be hardcoded. ### Additional context The fillament gets pulled some seamingly unchengable lenght which is also seamingly imposible to turn off and it draws soft molten fillament into the extruder gears where the chunks break off and totally render the machine unusable unable to get past the first fillament change without disasembly after every fillament change and changing the user changable parameters does nothing to stop or modify that part of the gcode from ruining the extruder and that print, this feature is CRITICAL.

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Reference: github/OrcaSlicer#1365