Better flow calculation - Concentric is impossible to read #1404

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MrUnknownDE · 2026-04-05T17:36:38+02:00

MrUnknownDE commented

2026-04-05 17:36:38 +02:00

Originally created by @WimVDK on 12/7/2025

Is there an existing issue for this feature request?

I have searched the existing issues

Below is a perfectionist flow calc using 2.3.1, default pattern of concentric with Kingroon PETG-CF with a filament profile flowrate of 0.95 to start.

By the official way (yolo, recommended) it it would have me drop down flow by 0.2 to 0.75! Using the perfectionist version it would have me drop it down by 0.4 based on the images below.

That can't be right? That would mean a petg-cf flowrate of 0.55 and extreme underextrusion

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

A better flow calculation or going back to the previous way in 2.3.x

Describe alternatives you've considered

No response

Additional context

No response

*Originally created by @WimVDK on 12/7/2025* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? Below is a perfectionist flow calc using 2.3.1, default pattern of concentric with Kingroon PETG-CF with a filament profile flowrate of 0.95 to start. By the official way (yolo, recommended) it it would have me drop down flow by 0.2 to 0.75! Using the perfectionist version it would have me drop it down by 0.4 based on the images below. That can't be right? That would mean a petg-cf flowrate of 0.55 and extreme underextrusion ![Image](https://github.com/user-attachments/assets/0e7f4d3f-c886-4c0b-8dd6-5c672ce06a81) ![Image](https://github.com/user-attachments/assets/37670a30-f290-4f34-82d6-22b134a2b4e6) ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like A better flow calculation or going back to the previous way in 2.3.x ### Describe alternatives you've considered _No response_ ### Additional context _No response_

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Reference: github/OrcaSlicer#1404