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This sound is driving me CRAZY  

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matthew.m63
(@matthew-m63)
Trusted Member
This sound is driving me CRAZY

Hello everyone! I got my MK3 a few months ago and LOVE IT!!!

Yesterday, when i got home i realized the printer crashed and stopped because the print lifted from the bed and dislodged.

Now, the printer is making a crazy vibration noise when printing. I attached video.

I touched the power supply, and other parts, and cannot seem to isolate where it is coming from.

Any ideas?

Link to video

Posted : 12/02/2019 8:17 pm
Nikolai
(@nikolai)
Noble Member
Re: This sound is driving me CRAZY

Video is not available to me.

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram

Posted : 12/02/2019 8:21 pm
matthew.m63
(@matthew-m63)
Trusted Member
Topic starter answered:
Re: This sound is driving me CRAZY

Here is another link in case anyone has trouble. Its getting louder every minute

https://drive.google.com/file/d/1px4LwkdP-ZTIb-XTM8TgPTbZqc8rD0zW/view?usp=sharing

Posted : 12/02/2019 8:34 pm
Nikolai
(@nikolai)
Noble Member
Re: This sound is driving me CRAZY

So which of many sounds is driving you crazy? Diagonal movement?

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram

Posted : 12/02/2019 11:44 pm
ryanm
(@ryanm)
New Member
Re: This sound is driving me CRAZY

If you find a solution let me know, I'm having similar issues but came like this from the factory. Bearings are junk. I can't imagine the QA has always been this bad but it seems like many corners are being cut.

Posted : 13/02/2019 12:05 am
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(@)
Illustrious Member
Re: This sound is driving me CRAZY

If the printer actually jammed the extruder into the part and the part off the bed so it jammed the Y-Axis ... You may want to pop the bed off and check all the bearings are still snugged down and centered on their seats.

Posted : 13/02/2019 2:03 am
matthew.m63
(@matthew-m63)
Trusted Member
Topic starter answered:
Re: This sound is driving me CRAZY

I will take apart the printer this weekend and re-assemble using modded bearing holders. I also bought some high end SKF bearings, i will let everyone know if it makes a difference on Monday.

I got a different surprise this morning when i woke up, and my brand new pei sheet peeled off.. and i used a LOT of windex. I guess its part of the hobby.. I emailed prusa, i hope they send me a replacement sheet. It was only 2 weeks old.

Posted : 13/02/2019 10:40 am
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(@)
Illustrious Member
Re: This sound is driving me CRAZY

After 2000 hours on oiled but ungreased bearings I replaced them with higher quality Misumi's (6 row instead of 4 row). Made a difference in stiction, pretty much unnoticeable everywhere else, including noise. But X and Y feel "tighter" in a good way; and less rotational play on the table.

PETG and PEI; I'm guessing you didn't read all the posts about how to prep the sheet before printing large PET pieces. PET damage to PEI is a long time known issue - there are many posts discussing ways to limit the adhesion. Windex - when applied properly - is only one way.

Also - your PEI sheet looks like you've been using sand paper on it?

Posted : 14/02/2019 3:02 am
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