Using the Base Preset 0.16 Optimal @BBL X1C, I’m noticing slight waves on the external surface. As an engineer, I require an impeccably smooth surface to test certain parts before mass production.
To improve the quality I set a slower speed by decreasing all speed parameters to -50% and got worse quality. My results on the screens:
Can you help me with this issue?
But acceleration/jerk settings were unchanged? Redo belt tension? I am just speculating here but that is one ugly pattern. I would have thought that you could avoid some resonance frequencies with a lower speed. not necessarily 50% lower.
I agree with checking belt tension. But if i do that I would do a complete maintenance procedure from BBL wiki. When checking belt tension make sure to go from corner to corner at least 8 or 10 times. Then do a full calibration.
The printer is brand new, purchased 3 weeks ago, and printed 10 small parts only. Looks like the belt tension is okay, but I’ll try to make them a little tighter.
This is hit and miss with most of their printers. Some people get it bad and some not as much or at all. I find running 160-170mm outer walls the sweet spot for what I print. It also depends on the axis. My X axis shows them much more than the Y so I line up longer prints that way.
You should check out Orca slicer and run the VFA calibration. It will run at different speeds so you can see what speed and axis is best for your printer.
I don’t think that’s belt tightness. Resonances would fade, you’d see the “ringing” near the corners but in the middle the print would be smooth. But tightening the belts is easy to do, so it’s worth a try as part of troubleshooting.
The curved “echoes” in this snip are resonance ringing, but you can see this overlays the completely vertical waviness. Suggests they are from two different sources.
Maybe “ghosting” of the infill? No way to tell without a picture of the slicer rendering…
The surface we’re looking at was printed in the horizontal orientation (it’s the top) or it the part was printed with that face oriented vertically?
Is the issue resolved? Perhaps you can try to reduce the Resolution value (under Precision in BambuStudio) to something like 0.001 and see if it is improved?
