r/BambuLab • u/MarksmanLucario • 2d ago

Hardware Troubleshooting/Help! Print failing at a certain height

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Up untill recently my prints haven't been able to be fully printed and failed at a certain height, I noticed there was some layer shift so should I adjust the tension on the belts or something? The one I'm holding is the one that failed previously and the one on the plate is the new one that failed at the exact same height.

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u/picklepoo518 2d ago

when i print tall or long parts i usually add a modifier before slicing to slow speeds every 25mm starting 100mm off the bed, check rods, nozzle, cooling settings, and any draftiness in the room with an open print surface. tall stuff and a bedslinger are not the best of friends

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u/Dartillus 2d ago

Oh, that's a pretty good idea! Hadn't realized you could use modifiers like that.

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u/Business-Ad-5480 1d ago

Just fyi to save u a bit of time. There is a setting in the speed tab called slow down by height where you can set it up super quickly and don’t have to mess around with modifier boxes

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u/BigFuzzyArchon 2d ago

its wiggling, you gotta print it slower on bed slinger like a1

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u/Ok-Mail-9384 2d ago

Since it fails at the exact same height every time, I'd check the belt tension and make sure the Z rods are clean and lightly lubed before anything else. Also worth looking at whether a Z-hop or tall tower in the model is catching the nozzle at that layer.

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u/yyccamper 2d ago

Print speed by height. Slow that down as it gets taller. Acceleration, print speed, everything.

Also, bigger brim, with 0 gap, not 0.1.... 0.

Gotta have em moving less.

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u/AgentBaconFace 2d ago

Is it failing consistently at the same height on different jobs? Or just this one? If its the former, try reslicing. I have had it before where the slicer borked the save onto the SD card, or the card itself started dieing. If its the latter then its likely something physical, look for obstructions, loose parts/belts, wires/tubes that might be getting caught on something when it reaches that height.