Wipe Tower "Filament for Features" not behaving as expected #1163

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MrUnknownDE · 2026-04-05T16:54:57+02:00

MrUnknownDE commented

2026-04-05 16:54:57 +02:00

Originally created by @BenKnechel on 1/7/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

Windows

OS Version

Windows 11

Additional system information

The prime tower always defaults to each layer alternating filaments. I am using dissimilar filaments as support, so this will result in an unstable prime tower. In Prusaslicer, you set the Extruder for the the prime tower, and it will always use that extruder for the perimeter of the prime tower, and do the wiping of the other filament on the inside. This does not work in OrcaSlicer, therefore the prime tower is pretty much useless when materials are dissimilar and don't still well to each other.

Printer

Prusa XL

How to reproduce

Import a STL that requires supports. Enable supports and set the support material to a different head than the main print. Enable the wipe tower and set either extruder as the wipe tower material under 'Filament for features'. Slicer the plate. You will see that the prime tower alternates materials each layer.

Actual results

These layers will not stick together, and the prime tower will end up falling over.

Expected results

The perimeter of the wipe tower should be all one material. This will create a stable tower. The other materials can wipe inside this stable perimeter.

Project file & Debug log uploads

STL, D55710-14, REV 00.zip

Checklist of files to include

Log file
Project file

Anything else?

I've attached a screenshot of the behavior in orcaslicer, as well as the expected behavior as demonstrated in Prusaslicer.

*Originally created by @BenKnechel on 1/7/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) Windows ### OS Version Windows 11 ### Additional system information The prime tower always defaults to each layer alternating filaments. I am using dissimilar filaments as support, so this will result in an unstable prime tower. In Prusaslicer, you set the Extruder for the the prime tower, and it will always use that extruder for the perimeter of the prime tower, and do the wiping of the other filament on the inside. This does not work in OrcaSlicer, therefore the prime tower is pretty much useless when materials are dissimilar and don't still well to each other. ### Printer Prusa XL ### How to reproduce Import a STL that requires supports. Enable supports and set the support material to a different head than the main print. Enable the wipe tower and set either extruder as the wipe tower material under 'Filament for features'. Slicer the plate. You will see that the prime tower alternates materials each layer. ### Actual results These layers will not stick together, and the prime tower will end up falling over. ### Expected results The perimeter of the wipe tower should be all one material. This will create a stable tower. The other materials can wipe inside this stable perimeter. ### Project file & Debug log uploads [STL, D55710-14, REV 00.zip](https://github.com/user-attachments/files/24462593/STL.D55710-14.REV.00.zip) ### Checklist of files to include - [ ] Log file - [ ] Project file ### Anything else? <img width="429" height="692" alt="Image" src="https://github.com/user-attachments/assets/52fe22cc-0beb-437b-93ea-e805796ce1c1" /> <img width="658" height="1009" alt="Image" src="https://github.com/user-attachments/assets/62deaae4-bb50-4daf-ad5c-27090796d195" /> I've attached a screenshot of the behavior in orcaslicer, as well as the expected behavior as demonstrated in Prusaslicer.

MrUnknownDE closed this issue

2026-04-05 16:54:57 +02:00

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Reference: github/OrcaSlicer#1163