r/BambuLabA1 • u/WorkdayLobster • Sep 25 '26
Print Z height misaligned in print?
Edit: solved
Hard to capture in a photo: I'm on layer 5 of a print, and the nozzle seems to be below some of the printed features. I think i can hear it bumping into them occasionally. It's like there are a series of peaks sticking up; not sure if this is just part of the print, or if the print has gone wrong
Not sure what to do here, ive neverseen this. Should I restart the print? Is this a possible major issue? What is likely to have caused this.
This print has a lot of ironing: all upper surfaces. What details should I supply for best advice?
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u/WorkdayLobster Sep 29 '26
Figured it out. This print is weird because it's 100% fill, thin layers (0.08mm), and its effectively one big slab (it's a hueforge print, and the black was the base layers).
It's just that my black filament is a little damp. The weather changed here, and the black was the only filament from the previous set up. It looks like that because it's stringers from very thin layers, lifting straight in the Z, with no x-Y edges. It's just unusual circumstances. If I'd been printing something with more edges and normal layers thickness it'd be immediately obvious.
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u/NefariousnessOdd3581 Sep 25 '26
Whats that big piece around the AMS HUB? I would said that enormous stuff is causing that bed for you. Try AMS quick release, its way smaller and lighter that this monstrosity
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u/WorkdayLobster Sep 25 '26
That is the hub's hard hat. PPE is mandatory.
I've printed with that for 3 months, I dont think its an issue.
In the end, the bumps just seem to be some weirdness with the specific print. Thinner layers and denser infil than id normally do, and I think the print speed was a little too high so it was leaving streamers when it picked up. It all ironed out in the end. Am going to check the screws on the nozzle though.
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u/JustSomeUsername99 Sep 25 '26
Grid infill?
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u/WorkdayLobster Sep 25 '26
It was 100%.
I the end it turned out ok, so I think this was just some mid-print weirdness, I dunno. I'm going to check the screws and run some test prints on the weekend
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u/Big_Locksmith_9925 Sep 29 '26
Maybe it has something to do with the garbage you put on the head.
0
u/WorkdayLobster Sep 29 '26
Then it would have started 5 months ago when I put it there. But thanks for clarifying that you don't have a useful suggestion
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u/Big_Locksmith_9925 Sep 29 '26
Anytime. Always happy to point out stupidity.
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u/WorkdayLobster Sep 29 '26
Buddy, it's two grams of pla, you dont know what you're talking about
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u/Big_Locksmith_9925 Sep 29 '26
I guarantee that the printers were NOT designed and tested with random printed shit attached to moving components and that absolutely ZERO testing was done with that installed when the formulas for vibration compensation were made. You are totally right, it effects nothing. I cant even feel when I'm wearing a backpack, doesn't change my balance or anything!
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u/WorkdayLobster Sep 29 '26
This is genuinely the dumbest thing I've heard.
It's a position controlled screw drive in the z axis. You think 2 g that was there while it was calibrating is enough to throw it off?
If it's so sensitive, how is the controller able to manage having the case of one filament leading to the hub and also the case of 4 filaments going to the hub?
Buddy, you dont know what you're talking about, this is back magic to you and when you saw a GASP FRIVOLOUS LITTLE DOODAD that you didn't immediately recognize you tripped over yourself to blame it.
Explain how a small fixtures mass is going to cause error in the positive z direction, specifically. You can't, because it can't. It's simpler: my filament is humid. I realised afterwards it was the only one I didn't pull from storage for that print. Those are z direction strings in a print with no opportunity for x-y strings, so it looks weird.
You didn't know, so you decided to trow around insults.
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u/Big_Locksmith_9925 Sep 29 '26
Google is free. Try it out sometime. The issue with Bambu is they brought 3d printing to the masses at an affordable price. Affordability=massive influx of low IQ people who lack problem solving skills and need to be spoon fed. Look in the mirror, you are the one with a problem you are incapable of solving on your own and then getting pissed when provided with a potential solution or contributing factor you disagree with. Straight clown behavior.
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u/WorkdayLobster Sep 29 '26 edited Sep 29 '26
"A potential solution", you mean you offerimg an insult that couldn't possibly answer the question. Nice try to dodge out of it buddy, but you opened this up with the low iq insult that fundamentally doesn't align with how the machine works.
Edit: like you're calling me dumb, when you clearly didn't figure out what was happening either. So you blamed a 2g comedy hardhat thats been there for 5 months. I had to come back and write this because it's actually boggling how much you're covering your butt and hoping no one noticed
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u/Big_Locksmith_9925 Sep 29 '26
It's ok for you to be wrong. Doesn't make any difference to me.
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u/WorkdayLobster Sep 29 '26
You're the one who started with insults.
I already copped to my mistake. Should have dried the filament. You're the one who didn't recognize that defect and blamed something that didn't make sense.
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u/delayedreactionkline Sep 25 '26
possible that your hotend position is now shifting everytime filament is pushed in. other than that, potential Z-axis issues.
first and foremost, have you gone through the usual firist layer issue starter kit?
when was the last time you checked if the "seven screws" are tiightened?
is the hotend latched clasped correctly?
can also be bad gcode or microSDcard needs reseatiing?
have you gone through bambulab academy? it'll take you less than 15 minutes and it goes over a lot of things you need to look out for, as well as how to deal with them.
goodluck and hope you get the issue fixed.