Every print layer shift | 3D Printing | Page 1

warped root Jun 29, 2025, 7:56 PM

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Every single print I do there is a loud bam noise and then I come to a layer shift on the Y axis.
Any tips for fixes or causes?

P.S. This printer is ass

celest brookBOT Jun 29, 2025, 7:56 PM

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warped root Every single print I do there is a loud bam noise and then I come to a layer shi...

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AI Help

It sounds like the loud noise and layer shift on the Y axis could be caused by a loose belt, a stalled stepper motor, or a mechanical obstruction. I recommend checking and tightening the belts, making sure there are no loose components in the print head or bed, and ensuring that the stepper motor is functioning properly. Additionally, check for any physical obstructions that may be causing the issue. If the problem persists, consider reaching out to the manufacturer for further assistance.

meager turret Jun 29, 2025, 7:57 PM

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More current to the Y steppers

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No more layer shifts

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(Downside of you'll now knock the print off of the bed)

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(I'm only slightly serious)

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It could be the model too, there was a model I tried to print that would layer shift every time at the same location, just warping really

storm oxide Jun 29, 2025, 8:01 PM

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make sure its not colliding with anything physically

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and then if not slow accel and mby speed down

warped root Jun 29, 2025, 8:10 PM

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meager turret It could be the model too, there was a model I tried to print that would layer s...

its every model

warped root Jun 29, 2025, 8:10 PM

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storm oxide make sure its not colliding with anything physically

if it was colliding it wouldnt get past auto home

meager turret Jun 29, 2025, 8:10 PM

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at the same layer?

warped root Jun 29, 2025, 8:10 PM

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meager turret at the same layer?

no, random

warped root Jun 29, 2025, 8:11 PM

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storm oxide and then if not slow accel and mby speed down

I already went from 2.5k accel to 1.5k and speed from 250 to like 80

meager turret Jun 29, 2025, 8:11 PM

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is the print moving on the bed or is the toohlead skipping steps?

warped root Jun 29, 2025, 8:11 PM

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Toolhead is on the X axis so its not the problem

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Idk if its skipping steps, maybe it is

meager turret Jun 29, 2025, 8:12 PM

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ah it's a bedslinger?

warped root Jun 29, 2025, 8:12 PM

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yeah

warped root Jun 29, 2025, 8:12 PM

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meager turret is the print moving on the bed or is the toohlead skipping steps?

And no the print isnt moving

meager turret Jun 29, 2025, 8:12 PM

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my guess is print head running into print, causing y axis stepper to skip steps

warped root Jun 29, 2025, 8:13 PM

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I mean, ive always ran it with Z hop off, idk why its suddenly starting to fuck up

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if thats the cause

meager turret Jun 29, 2025, 8:13 PM

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Zhop is apparenlty not good

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But it's something I try in situations like this

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Make sure your belt tension on your y axis is good

warped root Jun 29, 2025, 8:14 PM

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I tried it with high tension, loose tension, inbetween and it doesnt change anything

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Maybe the stepper is going bad or something?

meager turret Jun 29, 2025, 8:14 PM

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I don't konw. I have no idea if that's a thing

warped root Jun 29, 2025, 8:14 PM

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Me neither

celest brookBOT Jun 29, 2025, 10:18 PM

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warped root Jun 30, 2025, 1:38 PM

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Cool, this is with Z hop on

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mystic shadow Jun 30, 2025, 1:49 PM

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Checked the idler on both the stepper and the tensioner?

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See if the grub screw on the stepper side came loose

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Also check the belt clip under the bed, if you've run it in a hot chamber with a hot bed, it can become melty and lose grip

warped root Jun 30, 2025, 1:54 PM

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mystic shadow Also check the belt clip under the bed, if you've run it in a hot chamber with a...

No hot chamber for this print, the hottest ive ever ran it is a max ambient temp of like 45c

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I will check the grub screw

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Idler is good, grub screws are good too

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Idk what is wrong with this fuckin thing

warped root Jun 30, 2025, 2:09 PM

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mystic shadow Checked the idler on both the stepper and the tensioner?

Also the idler is the tensioner

mystic shadow Jun 30, 2025, 2:09 PM

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Check the cable connection on both the stepper and mainboard side

warped root Jun 30, 2025, 2:10 PM

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Stepper side ok

mystic shadow Jun 30, 2025, 2:10 PM

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If it's good, then try swapping the x and y axis on the mainboard side just to check if it's the driver or stepper

warped root Jun 30, 2025, 2:11 PM

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Man the motor moves

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How do you expect me to stress test it with a print when the axes are swapped

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I can swap the motors but not the entire axes

worn steppe Jun 30, 2025, 2:38 PM

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Do you have any plastic buildup on the print or nozzle?

warped root Jun 30, 2025, 2:41 PM

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A tiny bit on the nozzle

warped root Jun 30, 2025, 2:42 PM

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worn steppe Do you have any plastic buildup on the print or nozzle?

mystic shadow Jun 30, 2025, 2:53 PM

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warped root How do you expect me to stress test it with a print when the axes are swapped

You don't have to do an actual print, you can write or generate a gcode that will just stress test it, but also even if the axis is swapped I don't think it'll necessarily cause problems... I hope

warped root Jun 30, 2025, 2:54 PM

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Ok

mystic shadow Jun 30, 2025, 2:55 PM

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I suggested swapping the axis first because swapping the motors is more effort, but if you want to swap the motors first, you can

worn steppe Jun 30, 2025, 2:57 PM

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warped root A tiny bit on the nozzle

If it's only a tiny bit that wouldn't cause jumping. Could it be skipping teeth on the belt? Is one of the belts loose?

warped root Jun 30, 2025, 2:57 PM

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Its a bedslinger with 1 belt

warped root Jun 30, 2025, 2:57 PM

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warped root I tried it with high tension, loose tension, inbetween and it doesnt change anyt...

And here i talked about tension

worn steppe Jun 30, 2025, 2:58 PM

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In the photos it looks like it's skipped the same amount 'back' as it skipped 'forward'.

warped root Jun 30, 2025, 2:58 PM

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Its not the same, its close but not the same

worn steppe Jun 30, 2025, 2:58 PM

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Not a missing tooth on the belt or pulley?

warped root Jun 30, 2025, 2:59 PM

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Ill check later, right now nature is calling

worn steppe Jun 30, 2025, 2:59 PM

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I asked about filament build-up because I had a mistake recently where I accidentally sliced with the PLA profile for PETG filament, and of course that meant that the PETG wasn't fluid enough. I had build-up both on the nozzle and top layer, eventually the head hit the buildup and jumped. I don't think this is consistent with what you're seeing.

warped root Jun 30, 2025, 3:00 PM

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worn steppe I asked about filament build-up because I had a mistake recently where I acciden...

Yeah I thought so too but

This is flexible TPU95A
I turned Z hop on in hopes to fix it

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Correction, it is the same distance

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I pulled it out of the trash bin to double check

worn steppe Jun 30, 2025, 3:04 PM

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That screams belt skip, step skip, etc.

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Loose grub screw on the pulley?!

warped root Jun 30, 2025, 3:48 PM

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worn steppe Loose grub screw on the pulley?!

No

celest brookBOT Jun 30, 2025, 5:48 PM

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warped root Jul 1, 2025, 3:28 PM

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I made some custom Gcode to test it and it skips on these small movements

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You can hear it in the video

#Every print layer shift