Flow Dynamics Calibration with Line not possible (wrong values?!) #438

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MrUnknownDE · 2026-04-05T16:20:57+02:00

MrUnknownDE commented

2026-04-05 16:20:57 +02:00

Originally created by @FelixBuehler on 3/6/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

Nightly 6.3.2026

Operating System (OS)

macOS, Windows

OS Version

Windows 10

Additional system information

No response

Printer

Bambu Lab P1S

How to reproduce

Go to Calibration
Flow Dynamics
Default values for line (0, 0.05, 0.005)
Hit Calibrate

Actual results

Error message: Unable to calibrate; maybe because the set calibration value range is too large, or the step is too small.

Expected results

For it to start

Project file & Debug log uploads

No Project file

Checklist of files to include

Log file
Project file

Anything else?

When I try to start the Flow Dynamics Calibration with the default values for line, it gives the error message
Unable to calibrate; maybe because the set calibration value range is too large, or the step is too small.

When using pattern, everything works fine.

Can anyone reproduce this problem?

Been there since at least some weeks.

*Originally created by @FelixBuehler on 3/6/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version Nightly 6.3.2026 ### Operating System (OS) macOS, Windows ### OS Version Windows 10 ### Additional system information _No response_ ### Printer Bambu Lab P1S ### How to reproduce 1. Go to Calibration 2. Flow Dynamics 3. Default values for line (0, 0.05, 0.005) 4. Hit Calibrate ### Actual results Error message: Unable to calibrate; maybe because the set calibration value range is too large, or the step is too small. ### Expected results For it to start ### Project file & Debug log uploads No Project file ### Checklist of files to include - [ ] Log file - [ ] Project file ### Anything else? When I try to start the Flow Dynamics Calibration with the default values for line, it gives the error message `Unable to calibrate; maybe because the set calibration value range is too large, or the step is too small.` When using pattern, everything works fine. Can anyone reproduce this problem? Been there since at least some weeks.

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Reference: github/OrcaSlicer#438