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When new curled overhang feature is enabled, overhang perimeter speeds are not respected

Open stew675 opened this issue 2 years ago • 4 comments

OrcaSlicer Version

1.8.0 Beta 2

OS version

Windows 11

Additional system information

Not relevant

Printer

Generic

How to reproduce

Download test model from here: https://www.thingiverse.com/thing:6302570

Enable curled overhang option Orca Slicer, which also involves disabling "Classic Mode" for Overhang Speed.

In the filament cooling settings, set max fan speed threshold layer time to 2s. Also ensure that "Slow printing down for better layer cooling" is enabled.

In speed settings, set perimeter speed to 200mm/s. Keep the overhang speed settings at their defaults (0, 50, 30, 10)

Now slice the part and look at the perimeter speeds.

Actual results

It can be observed that the perimeter speeds on the overhangs are significantly higher than the overhang speed settings.

If the filament cooling max fan speed threshold layer time is increase and the model is resliced, we can observe that the overhang perimeter speeds are tracking the speeds as determined by the minimum layer time only.

Additionally, if the "Slow printing down for better layer cooling" option is disabled, and the model is resliced, we can observe that the overhang perimeter speeds are generated at full speed.

Expected results

We should be expecting to see overhang perimeter speeds respect the speeds set for the respective overhang percentages, but we do not.

If we re-enable Classic Mode for over-hang speed, we can see that the overhang perimeter speeds are respected again.

Project file & Debug log uploads

None

Checklist of files to include

  • [ ] Log file
  • [ ] Project file

stew675 avatar Nov 07 '23 14:11 stew675

Can you attach your 3mf project file please?

igiannakas avatar Nov 11 '23 12:11 igiannakas

I can't get slowdown for curling to have an impact. I tried on 1.8 and 1.9alpha. There needs to be more info on how this work and how to actually get it to enable.

sleewok avatar Dec 28 '23 18:12 sleewok

Submit your 3mf project file please.

igiannakas avatar Dec 28 '23 18:12 igiannakas

Submit your 3mf project file please.

Posted to other issue. Thanks for looking into this!

sleewok avatar Dec 29 '23 14:12 sleewok

Orca bot: this issue is stale because it has been open for 90 days with no activity.

github-actions[bot] avatar Mar 29 '24 00:03 github-actions[bot]

Orca bot: This issue was closed because it has been inactive for 7 days since being marked as stale.

github-actions[bot] avatar Apr 05 '24 00:04 github-actions[bot]