Strange inner wall gap infill slice result on chamfered cylinder with small cutouts near top edge #1913

New Issue

MrUnknownDE · 2026-04-05T21:10:40+02:00

MrUnknownDE commented

2026-04-05 21:10:40 +02:00

Originally created by @frmdstryr on 10/14/2025

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 24.04

Additional system information

N/A

Printer

Qidi Q2

How to reproduce

Use model from https://www.printables.com/model/1444834-qidi-q2-chamber-exhaust-fan-to-4-in-dryer-duct-ada
Slice at 0.3mm layer height with 2 wall loops
Look at layer 52 (1 from top)

Actual results

It looks fine with a layer height of 0.2mm but at 0.3mm it looks like this:

Expected results

I'd expect it to have a gap infill path(s) like the layer above and below (or like cura).

Project file & Debug log uploads

qidi-q2-exhaust-fan-to-4in-adapter.tar.gz

debug_Sat_Oct_11_14_37_42_86055.log.0.tar.gz

Checklist of files to include

Log file
Project file

Anything else?

I tried to make a more simple model with the same chamfer (test.tar.gz) and this issue does occur, so it appears to be due to the cutouts for the bolt holes.

*Originally created by @frmdstryr on 10/14/2025* ### 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 24.04 ### Additional system information N/A ### Printer Qidi Q2 ### How to reproduce 1. Use model from https://www.printables.com/model/1444834-qidi-q2-chamber-exhaust-fan-to-4-in-dryer-duct-ada 2. Slice at 0.3mm layer height with 2 wall loops 3. Look at layer 52 (1 from top) ### Actual results It looks fine with a layer height of 0.2mm but at 0.3mm it looks like this: <img width="1920" height="939" alt="Image" src="https://github.com/user-attachments/assets/b2932b33-f207-4992-8a1a-a1a42da16cc0" /> ### Expected results I'd expect it to have a gap infill path(s) like the layer above and below (or like cura). <img width="1671" height="1143" alt="Image" src="https://github.com/user-attachments/assets/104d95c5-8edf-4429-888c-8c8d9e4621de" /> ### Project file & Debug log uploads [qidi-q2-exhaust-fan-to-4in-adapter.tar.gz](https://github.com/user-attachments/files/22906382/qidi-q2-exhaust-fan-to-4in-adapter.tar.gz) [debug_Sat_Oct_11_14_37_42_86055.log.0.tar.gz](https://github.com/user-attachments/files/22906375/debug_Sat_Oct_11_14_37_42_86055.log.0.tar.gz) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? I tried to make a more simple model with the same chamfer ([test.tar.gz](https://github.com/user-attachments/files/22906533/test.tar.gz)) and this issue does occur, so it appears to be due to the cutouts for the bolt holes.

MrUnknownDE closed this issue

2026-04-05 21:10:40 +02:00

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Reference: github/OrcaSlicer#1913