supermerill / SuperSlicer

G-code generator for 3D printers (Prusa, Voron, Creality, etc.)

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2.5.59.8 ignore feedrate limits

ABLomas opened this issue · comments

What happened?

My printer is not fastest so i had preset limits (in marlin and in superslicer) as 200mm/s max for speeds.
Latest (2.5.59.8) seems to ignore all acceleration/speed limits set in configuration (and in reality parts are full of acceleration artefacts, layers slipping due to speed, printer itself is shaking - it's clearly not visual issue), see settings and generated G-code:
image
Attaching also 3MF file + printer config.

Earlier i used "SuperSlicer_2.5.59.6_win64_231231" and had no issues with speed/acceleration.

Project file & How to reproduce

cube.zip

Version

2.5.59.8

Operating system

Win10

Printer model

No response

I also tested "Also emit limits to G-code" and it seems to fix issue, at least speed is very much reduced and no more uncontrollable shaking.
Two questions remains:

  1. why this happens with new version (older did not required this)
  2. tooltip says that values are respected in g-code generation, but this is clearly not the case (as required speed values in g-code are far above set in config)

acceleration are used as max, but there's nothign for feedrate, true.
I think it's an oversight and should be fixed