2.3.1 alpha weird toolpath for support #2331

New Issue

MrUnknownDE · 2026-04-06T04:13:38+02:00

MrUnknownDE commented

2026-04-06 04:13:38 +02:00

Originally created by @flint723 on 8/30/2025

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

14th gen intel 14600k
48gb ddr5
3080ti gpu

Printer

Qidi Plus4

How to reproduce

Print anything with larger/long and thin supports.

Actual results

The support first layer will be generated in a weird pattern, not always drawing border first and even if it does, the infill may not be sequential and jump around, starting and stopping.

Expected results

It should draw support borders first and just fill in the infill from end to end without breaks. The file is a sliced gcode (needs .zip changed to .gcode) which isn't that bad but still jumps around and doesn't draw border first.

Project file & Debug log uploads

Checklist of files to include

Log file
Project file

Anything else?

I tried to send files but it said 3mf not supported, .gcode not supported. So this .zip needs to be renamed to .gcode to see it.

Qidi Plus4 Riser Back Left_PETG-CF_2h32m.zip

*Originally created by @flint723 on 8/30/2025* ### 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 14th gen intel 14600k 48gb ddr5 3080ti gpu ### Printer Qidi Plus4 ### How to reproduce Print anything with larger/long and thin supports. ### Actual results The support first layer will be generated in a weird pattern, not always drawing border first and even if it does, the infill may not be sequential and jump around, starting and stopping. ### Expected results It should draw support borders first and just fill in the infill from end to end without breaks. The file is a sliced gcode (needs .zip changed to .gcode) which isn't that bad but still jumps around and doesn't draw border first. ### Project file & Debug log uploads <img width="939" height="684" alt="Image" src="https://github.com/user-attachments/assets/e299909f-9cc5-4aa6-9b6f-dcccff89aea4" /> ### Checklist of files to include - [ ] Log file - [x] Project file ### Anything else? <img width="939" height="684" alt="Image" src="https://github.com/user-attachments/assets/7bd263cc-0153-4b1a-9e1b-31978a65120b" /> I tried to send files but it said 3mf not supported, .gcode not supported. So this .zip needs to be renamed to .gcode to see it. [Qidi Plus4 Riser Back Left_PETG-CF_2h32m.zip](https://github.com/user-attachments/files/22056535/Qidi.Plus4.Riser.Back.Left_PETG-CF_2h32m.zip)

MrUnknownDE closed this issue

2026-04-06 04:13:38 +02:00

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No Label 2.3.1 bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug

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Notifications

Due Date

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Reference: github/OrcaSlicer#2331