AI nozzle clumping false positives

i also have the samsung stick. but seems to be not logical for me.

after the post of @MotoGP11991 and @Nark , i stop Timelaps recording. same Print , no cleaning, no AI false positives.

now i installed an MX500 M.2 SSD in a USB 3.1 case, starten Timelaps again , same print again, no issues so far.

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yes it is indeed related to color, texture, and often infill pattern.

it’s not related to the usb drive, but the time of day (due to day lighting) changes result a lot.

I am hitting this with black filament. Is the only solution as of now to disable the AI detection features?

yes, I disabled it already.

yes i revert all what i said, hat the same issue last night again.

I also had to disable it.

Disabled ai detection today because of repeated false errors.

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Having turned AI detection to “low”,having cleaned the nozzle(s) throughly, having got rid of some white whispy stuff around the hot ends, and having switched to plain, monocolour prints, I am STILL getting this flaming error. Every 20 minutes, on a print that should have taken 24 hours (but will now take 48+, due to the flaming pauses.

Now turned AI OFF. If the printer trashes itself at some point due to blobs, spaghetti etc I’ll deal with the consequences when that happens.

I’m getting the same false errors and had to disable it… did not have the issue for the first week or two but now happens on every print. I don’t recall if I had an update lately or not… I will say I’m printing gridifinity boxes that have thin grid walls that others have mentioned — so wonder if this is part of it (but I was printing these in the past with no issue). This is only happening on the H2D and not two X1Cs that are printing the same boxes.

I’ve also been getting this error when there is no issue, just this recent print I started last night. Only made it to layer 8 and stopped due to “nozzle clumping”. Restarted it this morning and since then I had to resume it 7 times for the same error when there was absolutely zero signs of any issue. Now I have ai completely turned off. This is ridiculous.

I’ve noticed that false positives for clumping is only happening for me on a black PLA-CF filament mounted externally (left nozzle), and a large number of the posts in this thread seem to also have problems with specific black filaments of various types.

None of my other black filaments have problems, but they tend to be a bit glossier than the PLA-CF, which visually is a matt, greyish black.

Is the AI detection of clumping purely visual?

Note: I did have a valid clumping detection maybe two weeks ago, but that was with an orange filament and it was actually seriously clumped, so clearly the detection can work.

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Not clumping, but twice on a row, roughly at the same spot, keep getting false positives.



Same for me on Black PETG CF from Bambu. Happens every few minutes. Juste plain horrible.

Interesting, I’ve been printing using the same filament and I haven’t had one false positive. I believe I have set mine to Medium sensitivity.

I print using the HIGH setting and have never encountered any false positives. On the contrary, the system has correctly halted or paused operations in situations where real issues required intervention.

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The part has a kind of spaghetti texture. That might be the cause of the false positives.

Yeah imagine if you only have a very tight field of view and all you see is this kind of texture pattern, chances are a false positive here is unavoidable…

My smart doorbel sometimes thinks that certain objects are ppl also.
Would be nice if the printer learns from your feedback.

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