alan.d3
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Location: Luton, UK
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X Layer shifts on long prints since upgrading to v3.5.1

Dec 23, 2018 9:53 pm

Since upgrading to v3.5.1 (from 3.5.0) I keep getting X layer shifts on long (10+ hour) prints.
The only change to the printer is the firmware. Belt tension is fine.
No problems with the printer previously.
I'll downgrade to v3.5.0 to see if any better - I wasn't on that version for that long, but didn't have any issues.

I have a MMU2 which went from v1.0.2 > v1.0.3 at the same time as I installed v3.5.1, but I don't think that's responsible for this issue... these are all single colour prints that are going wrong. MMU2 has a whole load of it's own issues, but i'll keep that discussion elsewhere ;)
So far i've had 3 prints and about 1/2 roll of filament wasted due to this, as well as loads of time, NOT impressed Prusa!

alan.d3
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Re: X Layer shifts on long prints since upgrading to v3.5.1

Dec 25, 2018 10:05 am

Hmm, downgraded to v3.5.0 - now have X and Y shift at around 9:45 into a 10:04 print!
Maybe MMU firmware is something to do with it, will downgrade that back to v1.0.2 next...

alan.d3
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Location: Luton, UK
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Re: X Layer shifts on long prints since upgrading to v3.5.1

Dec 31, 2018 10:24 am

As mentioned on another thread: assembly-and-first-prints-troubleshooti ... 26855.html, I kept getting 'BED PREHEAT ERROR' or similar at the same points on some prints, but not others.
I've downgraded to v3.4.2 and now no more of those issues, and so far no X/Y layer shifts also.

Seems to me that currently v3.5.x firmware is buggy.

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nikolai.r
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Re: X Layer shifts on long prints since upgrading to v3.5.1

Jan 11, 2019 10:45 pm

alan.d3 wrote:
Dec 23, 2018 9:53 pm
Re: X Layer shits on long prints since upgrading to v3.5.1
Really? Nobody makes jokes about the title?

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joan.t
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Re: X Layer shifts on long prints since upgrading to v3.5.1

Jan 12, 2019 12:35 am

Every body is too polite!

I have edited the title

Joan
I try to make suggestions that I believe to be well founded and safe,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions,
what you do, is YOUR responsibility.

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