First layer including only a small loop #1376

New Issue

MrUnknownDE · 2026-04-05T17:31:02+02:00

MrUnknownDE commented

2026-04-05 17:31:02 +02:00

Originally created by @gsasha on 12/11/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

Linux

OS Version

Ubuntu

Additional system information

No response

Printer

Voron 2.4

How to reproduce

Load the attached STL file
Slice it with 0.2 layer depth
See the contents of the first layer

Actual results

The first layer only includes one small loop rather than the whole layer

Expected results

The whole flat layer should be laid down as the first layer

Project file & Debug log uploads

project.zip

Checklist of files to include

Log file
Project file

Anything else?

I have tried to cut the model at a certain height to make sure it has flat bottom, I have tried to trim the model in cad - no help, in any case it comes out with this problem. I have tried to export it as STL or STEP - same issue.

*Originally created by @gsasha on 12/11/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) Linux ### OS Version Ubuntu ### Additional system information _No response_ ### Printer Voron 2.4 ### How to reproduce 1. Load the attached STL file 2. Slice it with 0.2 layer depth 3. See the contents of the first layer ### Actual results The first layer only includes one small loop rather than the whole layer ### Expected results The whole flat layer should be laid down as the first layer ### Project file & Debug log uploads [project.zip](https://github.com/user-attachments/files/24111087/project.zip) ### Checklist of files to include - [ ] Log file - [x] Project file ### Anything else? I have tried to cut the model at a certain height to make sure it has flat bottom, I have tried to trim the model in cad - no help, in any case it comes out with this problem. I have tried to export it as STL or STEP - same issue.

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1 Participants

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Dependencies

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Reference: github/OrcaSlicer#1376