@droftarts you are right ofcourse - but like I say'd I changed already every little bit of the printer and nothing had so much effect to get rid of it. Mostly VFA will come from mechanical issues, but if there is nothing anymore to optimize this will lead to TMC and NEMA.
I guess the people out there get now more and more aware of how to correctly setup their printers while this VFA discussion is getting more popular everywhere.
I spent now 2 years to exchange everything on my printer, genuine GATES pulleys and belt, EZO Japan bearings, CPC / HIWIN Rails, total square aluminium topplate cnc milled and drilled where the rails are mounted, and new electronics.
Tried different extruders (dual gear and single) and also had a look at vibrations from hotend-fan or BTLs.
So i guess I am really at the end here what you are recommending and want to got as deep as possible into that rabbit hole now.
If the PRIORIFI Nema would not be so expensive in comparsion how the marketing is... but maybe there will be more and better experience reports soon.
Really appreciate your effort here.
Regards
facet