Discussion: Is the Prusa XL prone to generating perfectly spaced VFAs or are they isolated cases?  

Discussion: Is the Prusa XL prone to generating perfectly spaced VFAs or are they isolated cases?

Hello community,

we started the discussion of visual defects on Prusa XL prints in this thread here: Ringing Patterns on the XL

Here you can find a description of what I am talking about: https://ellis3dp.com/Print-Tuning-Guide/articles/troubleshooting/vfas.html

After many hours of troubleshooting and writing back and forth with Prusa support, I am sure these are VFAs in a perfect 2mm spacing, being caused somewhere at the XL gantry, the belt, or the motors. Since then I found many many more examples of other users, that show the same pattern. And now I cannot unsee it anymore. And I don't want to have them in the first place on a printer that expensive. I know for certain that thera are many CoreXY printers that do not have VFAs at all.

I uploaded a pre-sliced Orca Slicer generated VFA test for the Prusa XL on Printables.

You can generate the gcode yourself, instructions are in the description on Printables. There is also a list of some examples that show VFAs, even on Prusa's promotional pictures and videos.

So I would like to ask you: Do you have the same problem on your XL, can you confirm or disprove my sightings? Are you willing to print the gcode or generate it with Orca Slicer and post your Makes here and on Printables?

So far, the contact with Prusa was nice and friendly as always, but without meaningful results.

Thank you so far! Greetings,

B