There is something I am mystified about, perhaps somebody can explain. This applies to all printers, all filaments, and all slicers - but obviously I’m mainly interested in how Orca/SnOrca handles it. A filament profile holds details relevant to printing with that specific filament. Seems reasona…

In my opinion, there are hardware limits (set in the machines firmware, like max speed, max acceleration and so on) which functions as machine protection. Now it comes to print. The limits for printing are set in the slicer settings, like flow, speed and so on. They can’t exceed the machine limits …

[image] xchrisd: there are surely filaments which needs a way lower flow (like tpu) than others. I agree, but the flow for those will be affected by (eg) the nozzle diameter. It’s no good saying the flow setting is a safe figure, because what happens if you switch to (say) a 0.2mm nozzle? Y…

I came across the same question when I was working on FOS (FOrcaSlicer). In my earliy test print, it was ok to mix 0.2 and 0.4 nozzles because in 0.2 nozzle, there is volumetric speed cap. Even when print speed is set based on 0.4 nozzles, 0.2 ones still print at slower speed becase of this cap. I w…

So what’s the answer? Yes, OK, multiple filament profiles per filament for every hardware combination the user has at their disposal… but how about this: A lot of the filament information will remain constant. The few settings that vary (eg max flow rate) could be a table within the one profile, …

Have you taken a look at my version? I think some are already there in per nozzle settings.

No, I haven’t. For one thing, I’m currently locked into SnOrca 2.3.6 for testing purposes, for another I would need a Linux build, and I have had no need of multi-diameter working. I would prefer to be using vanilla Orca, and I’m not very comfortable that SnOrca is going in its own direction and n…

Sorry I need to clarify. I meant take a look at post and the wiki I built, and see if what I offer is what you need.

How Do Machine Hardware and Filment Profiles Interact?

Software Snapmaker Orca

xchrisd September 1, 2026, 5:46pm 4

I completely agree with you.
In s3d I could choose the relevant dynamic parameters myself but it’s not possible to print different nozzle sizes..

In this case you seem to need a filament profile per nozzle size.

Maybe @jiyang1018 could help us with some insight?
Anyway, happy to promote the fork again

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How Do Machine Hardware and Filment Profiles Interact?

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