[ENHANCEMENT] VFA Improvement

[bluerider098]

Printer model

XL

Describe the enhancement

I have both MK4's and an XL Multitool. The VFA's are noticably worse on the XL vs. the MK4. This is particularly noticeable on circular objects.

I would think the XL with the accelerometer would provide equal results however it does not.

I'm requesting further tuning be done to the XL to provide better results similar to that of the MK4.

Expected functionality

[Ro3Deee]

They look like ringing to me. Have you tuned the input shaper frequencies ?

[bluerider098]

They look like ringing to me. Have you tuned the input shaper frequencies ?

They are set at what the automatic calibration set them at. I've talked with Prusa Support and they recommended tightening the belts tighter than the belt tuning app recommended, but it makes no visible improvement. It's much better than before input shaping was introduced, but not near as good as the MK4.

This is most evident on circular objects. It's hard to see in the photos, but the smoothness of the surface is far superior on the MK4.

I'd argue that if additional manual tuning of the input shaping values is required, then there is still improvement to be made in the firmware. I would expect with a Core XY machine to see equal or better print quality of the print than the I3 style machine.

I'm open for suggestions though.