Title pretty much says it all. I’ve noticed this a couple of times now. My printer is cranking along just fine and then it pauses for about a minute with the printhead left wherever it happens to be, and then the print resumes but as you can see in this picture, there’s a layer shift.
Is that pause due to spaghetti detection? Anyone else have this behavior? I’m betting the printer’s LCD pops up an alert if it’s doing detection, but I haven’t had the wherewithal to remember to check when it happens…
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There have been reports of issues with the SD card being faulty and causing print issues. Not saying that’s what’s happening here but it might be worth trying a different card.
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The card appears fine, but I’ll try another for the sake of it. But my full-time job is working for a company that makes Flash so I’m fairly confident that it’s not the SD card.
Last night I ran another job. The printer paused once as above while leaving the print head over the print, then resumed without issue. I think my layer offset above was because the pause was long enough for the wall to cool and “creep” a little bit (it’s a thin section so it wants to warp). The offset is only present on that one long unsupported side, around the edges and back, the offset isn’t present. So I didn’t lose any stepper steps like I originally thought.
But now, as I was printing another file, the printer started doing a different thing. Towards the end of the print, every few layers (random) it’d lower the build plate a bit and seek to the right front corner of the enclosure for a few seconds and then the print would resume again. I was thinking maybe it was pausing for minimum layer time, but I slowed the print down to “Silent” mode and it still did it even though layer time increased by more than just the few seconds the printhead seems to dwell in the right corner when this pausing thing happens.
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Some P1P’s may have been shipped with a less than perfect SD card. The symptoms were pausing during a print, layer shifting and some other things I can’t recall at the moment. I think you are probably on the right track about the layer shift with the thin wall.
The right front corner is the home position. If the head is moving far enough into the corner to hit the end stops, it’s re-homeing in an attempt to recover from missed steps. You might want to check belt tension and the carbon rods to see if they need cleaning. If it’s not hitting the end stops, I don’t have a clue why it’s seeking the corner like that.
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@RocketSled I confirm it happens from time to time for me as well on X1C
I never seen a pausing other than filament runout or spaghetti detected, but do not watch it. After adding new roll in the AMS and Some times shifts some times does not
Also once or twice paused due to false spaghetti detection once recovered no shift another time recovered with shift and then stopped the print as soon as saw it
And for the other people no it is not SD card as it happens only on pause , and i have been using 2 different high quality SD cards , the same thing
No ideal what it is but it happens so rare that it does no bother me too much , just now looked for some one with similar issue as it shifted on more than 10 hour print after changing the filament near the end and was not impressed . I mean the print pause happens rare
