@hiroaki said in Wavy surface problem.:
@tpra Hello. That print result is excellent ! Can you show me a photo how your printer is constructed?
Hello, nothing crazy, it's a simple cartesian.
You can find pictures here : https://forum.duet3d.com/topic/21792/my-latest-duet-cartesian-printer
The Z drive has been completly modified since the pictures so it's closer to the one i designed on the funX4. Imho the printer would benefit a lot stronger and heavier frame. That"s why the next one will be a mix of the FunX4 Z and frame + RatRig's vcore3 XY carriage / EVA extruder holder.
@ccs86 said in Wavy surface problem.:
I am very curious to see this as well!
Input shaper benefits are pretty well established at this point, and I am anxiously awaiting the feature to roll out for RRF (hopefully supporting my Maestro board). But, I have had a suspicion that something in RRF is driving the steppers in a way that sets up a resonance.
Sorry it took time, i'm printing a no-input-shaper test with the exact same gcode used on the right picture of my comparison, will post results when i'm back at noon.
Tbh i don't think it has anything to do with input shaper. I also have the exact same suspicion as you about "something in RRF is driving the steppers in a way that sets up a resonance".
You know what makes me crazy with this ? the problem exists, and it's ignored. I don't even understand that seeing the comparison i posted above, no dev wondered or even asked me more informations.
I mean, it's not like if a guy who just got its first printer said "it's it does not work why???".
I thought the print quality spoke for itself. Clearly not. So why bother ?