prusa3d / PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
https://www.prusa3d.com/prusaslicer/
GNU Affero General Public License v3.0
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Skirt material extruder selection does not appear to work correctly #12752

Open bacomatic opened 5 months ago

bacomatic commented 5 months ago

Description of the bug

I am printing an object in ASA and using PLA as a support interface material.

Print Settings:

When I set skirt loops to 1 and set Draft shield to "Enabled", it generates a draft shield around the model but instead of being solid ASA, it has layers of PLA mixed in. Needless to say this will not work as it is guaranteed to separate during printing (I did test this...)

I expected "Support material/raft/skirt extruder" to force the skirt to only be printed with the selected extruder, as it does for the support material itself.

Project file & How to reproduce

R50-R53_phonemount_LHD_ballmount-bossed-draft.zip

To reproduce just load the project and click slice.

A skirt should be generated with bands of the incorrect material on the same layers as the support interface material.

Checklist of files included above

Version of PrusaSlicer

2.7.4+win64

Operating system

Windows 10

Printer model

Prusa XL 5 toolhead

metaxis commented 4 months ago

I'm seeing the same with a multiple extruder setup and a simple skirt. The more loops I add, the more materials the slicer picks, up to 3. It is ignoring the Support material/raft extruder setting.

u89djt commented 4 months ago

Fellow user here agreeing that we need coherent skirts with a brim. A quick search in the hub says the brim is being worked on. In the meantime, there might be folk reading this who would benefit from the simplest workaround available of setting up your own skirt. Obviously there are many situations in which this would be a pain, but you can also make a detailed skirt in whatever software the object is designed in. Folk could even include a bespoke skirt in posts to printables if it's worth the effort. It could follow vertical contours, too. tailored_R50-R53_phonemount_LHD_ballmount-bossed-draft.zip image