Noisy bed on MK3S  

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Alex
 Alex
(@alex-20)
New Member

Hello !

My MK3S is getting louder and louder after 6 month printing.   

Y axis bearings are quite noisy since the first settings but acceptable when printing.

But the bed is noisy when printing, as you can see in the video. 
The spacers between y carriage and the heatbed are very tightened, it seems there is play between lm8uu bearings and rods. The bearings are gently tightened with the U bolts, so no play between the bearings and the y-carriage.
I just added lubricant : no change.

How is it for yours MK3S guys ?

Anyone ? 

Thanks!

Alex, from France. 

Posted : 13/12/2020 10:20 pm
jsw
 jsw
(@jsw)
Noble Member

The only noise mine has ever made (since February when new) is the 'whooosh' when making higher speed moves.

Every so often I'll deposit a few drops of synthetic machine oil on the rods and move the axes a few times to be sure it's worked in.  Every so many so-oftens I'll rub a dab of Superlube on the rods.  There's no visible play or slop between the bearings and the rods.

Posted : 14/12/2020 3:49 pm
Sven
 Sven
(@sven-5)
New Member

I get the same noise on a factory build MK3S+. Already re-lubricated the rod which reduced the noise slightly but does not resolve it.

There is a minor amount of play between the bearing on the right side and the rod. Everything else is tight and not the cause of the noise.

I am also looking for a solution.

Posted : 17/12/2020 12:33 am
Cyber Systems
(@cyber-systems)
New Member

We have the same issue with the noise coming from the print bed (MK3S+). The printer is brand new and factory assembled. We have received it today and made 3 prints. From the first print the noise appeared. Also, we are puzzled. 

This post was modified 4 months ago by Cyber Systems
Posted : 11/02/2021 9:02 pm
Waaduu
(@waaduu)
New Member

Mine is not factroy built but has the same issues. Interestingly none of the other axis has any play whatsoever. Any ideas prusa?

Posted : 12/02/2021 9:14 pm
Dan Rogers
(@dan-rogers)
Prominent Member

My "fix the noise" kit for Y axis movement is loud.

Take a large zip tie - larger than the ones used for the rods and such if you assembled your own printer from kit.  Wrap large zip tie around the outside of the rear chassis frame and all the way around the Y motor.  You are going to strap your Y motor to the chassis to eliminate the noise of motor rubbing on chassis during Y carriage moves.  Position the zip tie to the far left side of the motor, around the outside of the chassis, and close the zip tie and tighten it firmly.  The goal is to fix the motor firmly against the chassis where it used to be rubbing.

Noise will now be gone.

Note:  this is only for case where you are using the Y axis motor chassis mount part that came with the printer.  If you have changed out your Y motor mount to something else, this probably not for you.

Posted : 12/02/2021 10:59 pm
Dan Rogers
(@dan-rogers)
Prominent Member

Oh - and one more common "my printer is noisy when carriage moves" is the case on the control box at the front of the printer.  That thing is shakier than a paint mixer.  I put a large zip tie right around the middle of my control box - all the way around - and tightened it.  Yes, it interferes with the screen, but the buzzing when print head is moving or carriage is moving is gone.  It isn't the bearings usually.  Those are designed to float a little.

 

Posted : 12/02/2021 11:05 pm
Waaduu
(@waaduu)
New Member

Hey Dan,

Thanks for your suggestions. For me though it's two times a nope. In fact I have more of a "my printer is noisy when carriage moves" situation, however it clearly is the carriage itself. When I manually press the motor against the frame or manually tighten the screen box nothing changes. However putting a finger - or even a about 50g heavy object on the bed instantly stops the vibration and noise. I wonder if one could just stick some metal to the heatbed magnets from underneath to make the assembly a bit heavier - or if that would disturb the P.I.N.D.A.

Posted : 13/02/2021 10:45 am
Cyber Systems
(@cyber-systems)
New Member

Well, i guess it's a good ideea to send an e-mail to support ([email protected]). That's for sure a thing that must be sorted out. Sincerly, we've opted for Prusa printer because a lot of reviews are saying this "is the gold standard" for the printer in this class. So, our expectations are high for 1000 euros. That's 3 times more than our initial option for a printer.

This post was modified 4 months ago by Cyber Systems
Posted : 14/02/2021 10:02 pm
destronicola
(@destronicola)
Active Member

Hi . I have the same issue with the printing bed. I've written to Prusa right now for a solution.

Posted : 24/03/2021 1:34 pm
MaKe68
(@make68)
Active Member

Hi,

I just assembled my MK3S+ Kit and first prints come out very nice. So, from the assembly perspective I apparently have done the right things the right way. It works 🤩  But, man, yes, this printer is pretty noisy when moving the bed. Also, when there is fast movement on the z-axes the sound is a bit awful. Seems like the hole thing starts vibrating. Bearings are lubricated well and they are moving very easy when removing the belt. At least it generates a lot of vibrations which resonate with the table amplifying the noise level. I'll try to use a foam mat underneath a piece of concrete the get rid of the table resonance as the table is working like a kind of a "speaker" ... putting the MK3S+ just down on the floor (we do have marble/stone) the noise level gets magnitudes level lower. So, I think, it has some greater impact on where you put the printer on. Apart from that, I actually have a few far cheaper printers like Anycubic I3M, Artillery SWX1 and Genius, Sapphire Pro from China as well (which I tuned of course) which are by far less noisy during x/y movements. So, didn't expected "noise" being an issue for a nearly 800€ "quality" printer ... 

Posted : 11/06/2021 10:12 am
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