First layer height gives wrong print time #21

New Issue

MrUnknownDE · 2026-04-05T16:18:10+02:00

MrUnknownDE commented

2026-04-05 16:18:10 +02:00

Originally created by @vlad-velichko on 4/2/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2

Operating System (OS)

Windows

OS Version

Win 10

Additional system information

No response

Printer

Elegoo Neptune 3 Pro

How to reproduce

Open attached 3mf
Change First layer height to 0.25
Slice

Actual results

Calculated print time changed from ~3h to ~4.5h

Expected results

Calculated print time has not changed that much

Project file & Debug log uploads

Oil funnel.zip

Checklist of files to include

Project file

*Originally created by @vlad-velichko on 4/2/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2 ### Operating System (OS) Windows ### OS Version Win 10 ### Additional system information _No response_ ### Printer Elegoo Neptune 3 Pro ### How to reproduce - Open attached 3mf - Change First layer height to 0.25 - Slice ### Actual results Calculated print time changed from ~3h to ~4.5h ### Expected results Calculated print time has not changed that much ### Project file & Debug log uploads [Oil funnel.zip](https://github.com/user-attachments/files/26449457/Oil.funnel.zip) ### Checklist of files to include - [x] Project file

MrUnknownDE added the bug bug bug bug bug bug bug bug labels 2026-04-05 16:18:10 +02:00

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Reference: github/OrcaSlicer#21