Additional lubrication and sound-deadening
I've found lubricating the Z rods and smooth rods made my printer quite a bit quieter. A resonance that had started towards Max X / Max Y has gone. Bed movement is near silent.
Given how the base panel feels during a print, I'm tempted to cover the underside in Dynamat, perhaps the outer surface of the two indents where the handles are too. There aren't many places it can be done out of sight and without interfering 🧐
I did similar to the enclosures of my other printers to good effect. On the Core One, the enclosure is the speaker, there's no isolation as with a printer sat in the enclosure.
Mini+, MK4+MMU3, MK4S, Core One, XL.
RE: Additional lubrication and sound-deadening
What lubricant did you use? I'm just wondering what is best (and hopefully readily available).
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I used the lubricant supplied with the Core One.
Having made this post and seen initial improvement, I'm finding my Core One is still resonant at times (x,y location seems to be a factor), I'm sure there are other factors.
As I put more hours on the Core One and understand its personality, I'm thinking it could be SW not HW. The resonance can be extreme on some prints and inaudible with others. Because almost every print for me is different, I don't have scientific data to draw reliable conclusions.
I am very happy with the Core One 🙂 I have no doubt these kinks will be ironed out. I plan on ordering more based on my experience to date.
EDIT: lubricating the Z rods has made a lasting difference, no question. I'd say my particular unit came under lubricated. I think all the noise is coming from x/y.
Mini+, MK4+MMU3, MK4S, Core One, XL.
RE: Additional lubrication and sound-deadening
I used the lubricant supplied with the Core One.
Oh I didn't see lubricant listed as being included on the core one page. Cheers
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This is what came...
Mini+, MK4+MMU3, MK4S, Core One, XL.
RE: Additional lubrication and sound-deadening
Awesome thank you for that! I was worried about being able to find proper lubricant here in NZ that doesn't cost an arm and both legs.
RE: Additional lubrication and sound-deadening
My last Prusa printer a Mk3, I originally used oil but whilst this worked, it required regular like too regular oiling and I ended up damaging one of the rods due to not oiling enough. Being an engineer and having looked into tribology as part of jobs, I ended up using Penrite Semi Fluid and steering box lube.
This is a lithium base NLGI 00 lube which can actually be applied using a syringe and needle (Not hypodermic) and is about the same consistency as the Prusa grease.
Note: not all greases are she same even if two share the same NLGI number, as a matter of fact the density of these can be wildly different as this number is not the density of the carrier for the lubricant.
Do some research first as last time I started on explaining greases, well lets just say everyone has their own opinions and of course everyone is always right so I'm not going to go down this road again!. But be aware, this grease exists and is available in Australia and more than likely NZ, one thing of note about it, it can be a little strong smelling to begin with. Not in a bad way, but in a car sort of way.
Normal people believe that if it is not broke, do not fix it. Engineers believe that if it is not broke, it does not have enough features yet.