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prusa3d / Prusa-Firmware-Buddy

Firmware for the Original Prusa MINI, Original Prusa MK4 and the Original Prusa XL 3D printers by Prusa Research.
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Phase stepping causing visual artifacts? #3808

Closed chmuc01 closed 2 months ago

chmuc01 commented 7 months ago

Prusa XL - FW 6.0.0-alpha

The phase stepping calibration of the motors workes very good and the printer is really quiet now as long as it is moving fast. But for the external perimeters the print speed (Prusa Slicer settings: XL, 2 heads, IS, 0.2mm structural) is slow and the motors still resonate a lot. This ends in still having VFAs where they should not be: at the visible outside of a part.

Maybe it would be a good idea to also find a phase stepping calibration for these slow speeds, too, as this may really reduce the VFAs.

yaqwsx commented 7 months ago

Phase stepping should eliminate any resonance in slow and mid-range speeds. If this is not the case for you, could you:

chmuc01 commented 7 months ago

Hello Jan. Die reduction that was displayed was between 94 and 97%. And of course I switched phase steppin on. I realize that the sound level is really gone dramatically down now, otherwise I wouldn't have noticed. Normally I do not hear any movements any more because now the noise is below the noise of the fans :-). But as soon as the external perimeter is printed, I could hear a very noticable change in the sound level with vibrations that are nearly the same as before.

As I have just updated from the 2 head to the 5 head version, I will do another test now.

On Sun, Mar 10, 2024 at 6:28 PM Jan Mrázek @.***> wrote:

Phase stepping should eliminate any resonance in slow and mid-range speeds. If this is not the case for you, could you:

  • share the numbers reported by the phase stepping calibration and
  • ensure that you have phase stepping enabled in settings and it is not disabled by accident?

— Reply to this email directly, view it on GitHub https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/3808#issuecomment-1987302466, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACO2UETSW7GFTQDS552QCKDYXSJ37AVCNFSM6AAAAABEFX4L3OVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOBXGMYDENBWGY . You are receiving this because you authored the thread.Message ID: @.***>

yaqwsx commented 7 months ago

Could you provide a video with a sound recording? From the vague description, it is nearly impossible to tell what is wrong.

chmuc01 commented 7 months ago

Seems as the normal settings for external perimeters are so slow that the noise and vibration comes from the slow stepping of the motors. So I think there is no problem in the phase setting rather just in the slow motion. Maybe it would be interesting to change some of the printing profiles in the configuration for PrusaSlicer to just get a faster motion as it is unnecessarily slow for external parameters. In the past I was using the default settings from PrusaSlicer but now I have changed the speed for the external parameters and now it is not as noisy.

On Sat, Mar 16, 2024 at 3:13 PM Christian Hofmann @.***> wrote:

Hello Jan. Die reduction that was displayed was between 94 and 97%. And of course I switched phase steppin on. I realize that the sound level is really gone dramatically down now, otherwise I wouldn't have noticed. Normally I do not hear any movements any more because now the noise is below the noise of the fans :-). But as soon as the external perimeter is printed, I could hear a very noticable change in the sound level with vibrations that are nearly the same as before.

As I have just updated from the 2 head to the 5 head version, I will do another test now.

On Sun, Mar 10, 2024 at 6:28 PM Jan Mrázek @.***> wrote:

Phase stepping should eliminate any resonance in slow and mid-range speeds. If this is not the case for you, could you:

  • share the numbers reported by the phase stepping calibration and
  • ensure that you have phase stepping enabled in settings and it is not disabled by accident?

— Reply to this email directly, view it on GitHub https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/3808#issuecomment-1987302466, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACO2UETSW7GFTQDS552QCKDYXSJ37AVCNFSM6AAAAABEFX4L3OVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOBXGMYDENBWGY . You are receiving this because you authored the thread.Message ID: @.***>

github-actions[bot] commented 3 months ago

This issue has been flagged as stale because it has been open for 60 days with no activity. The issue will be closed in 7 days unless someone removes the "stale" label or adds a comment.

github-actions[bot] commented 2 months ago

This issue has been closed due to lack of recent activity. Please consider opening a new one if needed.