Wavy surface problem.
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I don't think it's a case of dev's ignoring an issue, so much as it is a slippery issue, which can be impacted/created by a multitude of variables, that nobody has truly nailed down to an actual issue within RRF.
I think you are in the best position ever to truly shine light on this, while ruling out any mechanical issues. An identical print, on the same machine & electronics, between RRF and Klipper (sans input shaper), should really get us closer to the core.
This is a thread I posted with similar complaints (periodic XY deviation). I never really found a solution, so much as I found ways to mitigate the issue (very high resolution STLs, very small gcode line segments, slower print speed). https://forum.duet3d.com/topic/21825/duet-maestro-struggling-to-produce-smooth-curves/33
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@ccs86 said in Wavy surface problem.:
Klipper
That's my plan for 2 weeks from now - I have a fast corexy that runs klipper on mini5+, and i'll be flopping between klipper and RRF to watch how it changes
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@Luke-sLaboratory I gotta ask, sorry for replying to last year, but i face this problem. Can i ask if you use 2209 stepper drivers/interpolation with your steppers? Or are these stock?
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@Duckers Oh wow, been a long while!
I never got around to this experiment - its gotten to the point where I've switched from a duet mini5+ on klipper to a duet 6hc on klipper - the mini5+ used 2209's, and didn't really notice any changes between the mini and the 6hc, other than speed!
I don't use interpolation on either - experiments with encoders revealed small issues with positioning while using interpolation, but these are also very small!
