Ocasional layer shifts | VORONDesign | Page 1

meager sinew Jan 19, 2025, 11:59 PM

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I am having some layer shift problems. Mostly random and I can't figure out why. Sometimes random, sometimes they happen when the layer changes a lot(like a raspberry pi case when hdmi holes start/end)
I removed z belts and made them the same lenght(they were not).
I hear some noise at some frequencies but I can't figure out from where. Made sure xy idler screws are tighten/loose as they should
TMC2209 with 1A run_current stealthChop disabled
Voron V2.4 350 Formbot
Fly adxl345 (mount: https://www.printables.com/model/597996-mellow-fly-adxl345-stealthburner-mount)
Any ideas?

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meager sinew Jan 20, 2025, 12:45 AM

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When I touch the white part the sound stops

summer maple Jan 20, 2025, 12:56 AM

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Can you take a picture of the toolhead fully assembled with the adxl in place please

meager sinew Jan 20, 2025, 1:09 AM

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meager sinew

I am doing the tests with the toolhead like this, without the front red part. The screws where not long enough

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A layer shift and a successful print from yesterday

summer maple Jan 20, 2025, 1:45 AM

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that is going to throw all your test off

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stealth burner needs the front cover on to fully secure it

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I would consider all test with it off to be invalid

meager sinew Jan 20, 2025, 2:06 AM

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I will finish my test cube and try to attach the front with the accelerometer. I was initially mounting sideways in the back but xyz ends up not oriented, is that a problem?

meager sinew Jan 20, 2025, 2:22 AM

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meager sinew Jan 20, 2025, 2:48 AM

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My accelerations/speed are:

klipper
max_velocity: 340
max_accel: 5000

summer maple Jan 20, 2025, 3:55 AM

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meager sinew I will finish my test cube and try to attach the front with the accelerometer. I...

The orientation of the adxl doesn’t have a big impact on resonance as klipper uses the combination of all of them

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Are you using tap?
Are you homing and qgl’ if for running input shaper?

meager sinew Jan 20, 2025, 10:31 AM

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summer maple Are you using tap? Are you homing and qgl’ if for running input shaper?

Yes

summer maple Jan 20, 2025, 4:02 PM

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Which tap?

meager sinew Jan 24, 2025, 9:35 AM

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The one from formbot kit

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I’ve been off for a few times. Exames soon. I will continue then and acrews to fix accellerometer better are on the way

summer maple Jan 24, 2025, 3:46 PM

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meager sinew I’ve been off for a few times. Exames soon. I will continue then and acrews to f...

I would check the tap screws to make sure they are making contact with the tap magnets and adjust accordingly

meager sinew Jan 25, 2025, 10:11 PM

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Done

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Idk what else can be. I was thinking maybe overheating of the stepper motors but its a stock build. Lots of people with same setup and no problems

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I’m thinking on redoing all my speed/acceleration settings to more default values and evaluate if the issue persists. Its so random it makes it difficult to debug

summer maple Jan 25, 2025, 10:52 PM

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Did you make any adjustments?

meager sinew Jan 26, 2025, 9:01 AM

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Yes. They were a little off. Also my probe accuracy decreased

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I took the z belts to make them the same length and in the process the probe accuracy decreased. Now its a little better but before the magnets were fine and I had layer shifts

meager sinew Jan 31, 2025, 10:25 PM

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I'm now investigating the possibility of the layer shift cause be warping. I was trying to print this pieces and the large one warped a lot. The head was making a weird noise while passing over the warped side. Its possible that all/part of the layers shifts happen when the head nocks a warped part and shifts

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Tho I don't understand why is this warping. ABS bed 110 head 260 chamber 58 and fully enclosed

summer maple Jan 31, 2025, 10:56 PM

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Not sure, but this appears to now be a more #slicers_and_print_help than resonance issue

atomic moss Feb 8, 2025, 7:32 PM

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meager sinew Tho I don't understand why is this warping. ABS bed 110 head 260 chamber 58 and ...

I agree with Reth. I will tag this as solved and close the post

#Ocasional layer shifts