Could be, and worth checking his slicer settings to be sure, but just eyeballing it, it looks like his print may have multiple zits on at least some of his layer lines,
which isn’t consistent with that as the total explanation.
Well, let’s see what he says after he checks his slicer settings.
Hi, this is not the seam. The seam is aligned. It seem to me the parameters are all wrong for 0.4 mm and 0.8mm, or a sensor for the flow is not working propably.
BTW: I got an update from the service regarding PVA, quote:“Regarding the printing quality issue with PVA, we have also been able to replicate it. The R&D Team is currently in the process of readjusting the parameters, and optimization efforts will be carried out subsequently.”
I tried the calibration routine. First I tried the auto calibration. Here I got different values back: 0.019 on the first attempt and 0.03 on the second. So I switched to manual calibration and tested from 0 to 0.2 in 0.01 increments. None of the lines turned out correctly. Unfortunately, this is a dead end.
If you don['t mind me asking, where is it that you are reading those numbers from? When I turn on automatic dynamic flow calibration just prior to sending the slice file to the printer, the H2D just seems to do its thing and then move on without reporting any numbers back to me. At least, I haven’t noticed if it has. Perhaps you are invoking yours from the “calibration” drop-down menu instead?
You don’t see it for a print job. You can determine it in the flow calibration, there are two options auto or manual.
With the auto option, which is the same like done for every job, when you want it, you can the see the values. And they differ a lot.
I invoke it just prior to the print job:
but unless there’s a log somewhere that I haven’t seen, it never tells me what the flow dynamics number was.
What I do know, though, is that if I, for example, change the filament temperature, then I should set the Flow Dynamics Calibration to “On” rather than “auto”, because it doesn’t seem to realize there’s been a change, and so (I presume) it re-uses an obsolete K value. If I set it to “ON”, though, it seems (?) to recalibrate using the new temperature and the print comes out fine.
What I mean is: under the “Calibration” section, you can run a flow measurement. There are the two options I mentioned. And here I see that the automated measurement fluctuates widely, which leads me to conclude that it can’t be suitable for an actual print job either. Unfortunately, manual selection doesn’t help in my case, either, because none of the test samples printed successfully.
Have you guys seen this?
https://wiki.bambulab.com/en/filament-acc/filament/pla-basic-and-petg-hf
I just noticed that the wiki page has a blurb about not printing PLA/PETG in different nozzles as supports…See blurb 3 under “Notes before Operation”
Yeah, it’s a bit odd since it works really well in my experience.
I’m giving it a shot currently. Fingers crossed the print works!
They have an article on how to set up the slicer if you’re going to do it.
Key config changes you will want to make:
Yup! That’s what I followed!
