Wipe tower multimaterial not respected #1978

New Issue

MrUnknownDE · 2026-04-05T22:00:45+02:00

MrUnknownDE commented

2026-04-05 22:00:45 +02:00

Originally created by @WimVDK on 10/6/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1-beta

Operating System (OS)

Windows

OS Version

Win 11 24H2

Additional system information

No response

Printer

PrusaXL

How to reproduce

Pick any print model that needs support
Set interface layer to a dissimilar material (eg model petg black, support interface to pla white. Color difference is needed to see effect on wipe tower
Under "Multimaterial" Filament for Features set "wipe tower" to the support filament (in this case generic pla white in extruder 5)

Actual results

Despite setting a specific toolhead as the wipetower (for the walls) the dissimilar materials are still used right on top of each other instead of using specifically toolhead 5 in this case for the wipe tower walls. This WILL result in dislodging of the wipe tower layers and failure of the print

Expected results

Behavior like PrusaSlicer does when setting a specific extruder for "Wipe Tower Extruder" under "Multiple Extruders". See https://help.prusa3d.com/article/support-settings-for-the-xl_681927. Setting a specific extruder for the wipe tower will result in the perimeters used for the wipe tower to be ALWAYS that specific filament toolhead 5. This is not the case in OrcaSlicer

Project file & Debug log uploads

Full enXLosure.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @WimVDK on 10/6/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1-beta ### Operating System (OS) Windows ### OS Version Win 11 24H2 ### Additional system information _No response_ ### Printer PrusaXL ### How to reproduce 1. Pick any print model that needs support 2. Set interface layer to a dissimilar material (eg model petg black, support interface to pla white. Color difference is needed to see effect on wipe tower 3. Under "Multimaterial" Filament for Features set "wipe tower" to the support filament (in this case generic pla white in extruder 5) ### Actual results Despite setting a specific toolhead as the wipetower (for the walls) the dissimilar materials are still used right on top of each other instead of using specifically toolhead 5 in this case for the wipe tower walls. This WILL result in dislodging of the wipe tower layers and failure of the print ### Expected results Behavior like PrusaSlicer does when setting a specific extruder for "Wipe Tower Extruder" under "Multiple Extruders". See https://help.prusa3d.com/article/support-settings-for-the-xl_681927. Setting a specific extruder for the wipe tower will result in the perimeters used for the wipe tower to be ALWAYS that specific filament toolhead 5. This is not the case in OrcaSlicer ### Project file & Debug log uploads [Full enXLosure.zip](https://github.com/user-attachments/files/22729122/Full.enXLosure.zip) ### Checklist of files to include - [ ] Log file - [x] Project file ### Anything else? _No response_

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Reference: github/OrcaSlicer#1978