Prime Tower overlapping lines when more than 2 colors of a tool changer is used in the layer #1599

New Issue

MrUnknownDE · 2026-04-05T18:36:22+02:00

MrUnknownDE commented

2026-04-05 18:36:22 +02:00

Originally created by @rhapsodyv on 11/17/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

macOS

OS Version

macOs 14.7.2

Additional system information

No response

Printer

Voron 2.4 with Stealthchanger Toolchanger

How to reproduce

Using a printer with more than 2 extruders, just add 3 cubes, one for each extruder/color and enable prime tower.

Actual results

Some of the prime tower lines are printed in the same place of others. It cause the prime tower breakage when using different materials for extruders, like PETG+PLA.

Expected results

The prime line of each extruder printed in its own space, side by side with other lines.

Project file & Debug log uploads

prime-tower-issue.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @rhapsodyv on 11/17/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) macOS ### OS Version macOs 14.7.2 ### Additional system information _No response_ ### Printer Voron 2.4 with Stealthchanger Toolchanger ### How to reproduce Using a printer with more than 2 extruders, just add 3 cubes, one for each extruder/color and enable prime tower. <img width="1639" height="1060" alt="Image" src="https://github.com/user-attachments/assets/92ccb218-43b8-4987-96af-7f5a05154721" /> ### Actual results Some of the prime tower lines are printed in the same place of others. It cause the prime tower breakage when using different materials for extruders, like PETG+PLA. <img width="1639" height="1060" alt="Image" src="https://github.com/user-attachments/assets/d8a83eca-0c80-44ac-ab20-7c654de77e3f" /> ### Expected results The prime line of each extruder printed in its own space, side by side with other lines. ### Project file & Debug log uploads [prime-tower-issue.zip](https://github.com/user-attachments/files/23588551/prime-tower-issue.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? _No response_

MrUnknownDE closed this issue

2026-04-05 18:36:23 +02:00

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Reference: github/OrcaSlicer#1599