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I've implemented it such that there shouldn't be any retractions for straight travel lines from support to support. When such a travel is not straight as to Avoid Printed Parts, then a retraction should be performed.
It does look messy sometimes, but the stringing never actually touches the object.
At least, that is how the algorithms were designed.
If it works differently then there is a bug.
I haven't seen any non-retraction from within support to within the model, though.
Could you send me your gcode?
t [dot] kuipers [at] ultimaker [dot] com
This stringing is not harmless at all. There should absolutely be an option to retract between supports. Not only does the stringing sometimes make supports WAY harder to remove, long strings pull filament out of the nozzle and waste it, in addition to throwing off what the machine thinks it's actually extruding. I'm definitely done using Cura until this is fixed. Honestly baffling as to how this got through QA.
Cura 2.3 (Release) Bug - Massive Stringing on Supports
in UltiMaker Cura
Posted
This stringing is not harmless at all. There should absolutely be an option to retract between supports. Not only does the stringing sometimes make supports WAY harder to remove, long strings pull filament out of the nozzle and waste it, in addition to throwing off what the machine thinks it's actually extruding. I'm definitely done using Cura until this is fixed. Honestly baffling as to how this got through QA.