Gcode trying to make extruder move at 963 mm/s #339

New Issue

MrUnknownDE · 2026-04-05T16:20:02+02:00

MrUnknownDE commented

2026-04-05 16:20:02 +02:00

Originally created by @yonkiman on 3/12/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2-dev Build 845baaef

Operating System (OS)

Windows

OS Version

Windows 10

Additional system information

Problem is in the generated Gcode.

Printer

Voron Trident

How to reproduce

Load this file into 2.3.2-dev Build 845baaef.

Have it generate the gcode. Search for G1 X82.539 Y213.722 E.02145. The lines above and below it are:

G1 X216.921 Y213.793 E.02145
G1 X83.079 Y213.793 E5.26649
G1 X82.539 Y213.722 E.02145

Which according to chatgpt will try to make the extruder push plastic at 963 mm/s. There are 8 exact copies of that gcode in the print, but I assume hundreds more that have the same effect.

I caught it when I heard my extruder making high-pitched cries for help during the print.

Unfortunately I did not record the version of OrcaSlicer that did not have this problem, but it was recent - the nightly build 1, 2, or 3 nights before this one.

Actual results

You will see gcode lines trying to move the extruder at more than 900mm/s.

Expected results

Extruder should not be commanded to go faster than 30 or 40mm/s.

Project file & Debug log uploads

Solar Light ASA with extruder glitch 3mf.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @yonkiman on 3/12/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2-dev Build 845baaef ### Operating System (OS) Windows ### OS Version Windows 10 ### Additional system information Problem is in the generated Gcode. ### Printer Voron Trident ### How to reproduce 1. Load [this file](https://github.com/user-attachments/files/25949187/Solar.Light.ASA.with.extruder.glitch.3mf.zip) into 2.3.2-dev Build 845baaef. Have it generate the gcode. Search for `G1 X82.539 Y213.722 E.02145`. The lines above and below it are: ``` G1 X216.921 Y213.793 E.02145 G1 X83.079 Y213.793 E5.26649 G1 X82.539 Y213.722 E.02145 ``` Which [according to chatgpt](https://chatgpt.com/share/69b3209c-13c8-8003-b00a-3f1ccd966a13) will try to make the extruder push plastic at 963 mm/s. There are 8 exact copies of that gcode in the print, but I assume hundreds more that have the same effect. I caught it when I heard my extruder making high-pitched cries for help during the print. Unfortunately I did not record the version of OrcaSlicer that did not have this problem, but it was recent - the nightly build 1, 2, or 3 nights before this one. ### Actual results You will see gcode lines trying to move the extruder at more than 900mm/s. ### Expected results Extruder should not be commanded to go faster than 30 or 40mm/s. ### Project file & Debug log uploads [Solar Light ASA with extruder glitch 3mf.zip](https://github.com/user-attachments/files/25949410/Solar.Light.ASA.with.extruder.glitch.3mf.zip) ### Checklist of files to include - [ ] Log file - [ ] Project file ### Anything else? _No response_

MrUnknownDE closed this issue

2026-04-05 16:20:02 +02:00

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Reference: github/OrcaSlicer#339