Prusa Lack enclusure  

Re: Prusa Lack enclusure

If you get a patio stone, that helps significantly. I put a rubber patio stone under a regular stone patio stone and my printer got quite a bit quieter.

Re: Prusa Lack enclusure

I put an 18-inch ceramic tile with adhesive rubber feet under it. It works perfectly.

Re: Prusa Lack enclusure

Thirded. A stone or granite slab 16X16 to18X18 will reduce the resonance during fast infill movements. Thelack is hollow with honeycomb cardboard inside the top and the legs are hollow except for the very top and bottom few inches. It amplifies the noise. The stone right below the printer solves it. I have 2 stones on my lower table (see the official prusa enclosure thread for pics) and it still got loud until i put a slab directly under the printer. that is the key. the good news with two or more slabs is it does not move anywhere and there is no vibration to effect prints that I see.

Re: Prusa Lack enclusure

I cut away most of the bottom of the bottom lack table, removed the honeycomb inside and filled it with concrete.
By cutting out most of the bottom plate, but leaving a edge of around 5 cm the concrete is fixed in the bottom. Total weigth is around 25 kg, jus for the bottom table 😀
All resonance is gone without waisting height for a ceramic tile. Hopefully the multimaterial upgrade will still fit within the enclosure.

Re: Prusa Lack enclusure

I cut away most of the bottom of the bottom lack table, removed the honeycomb inside and filled it with concrete.
By cutting out most of the bottom plate, but leaving a edge of around 5 cm the concrete is fixed in the bottom. Total weigth is around 25 kg, jus for the bottom table 😀
All resonance is gone without waisting height for a ceramic tile. Hopefully the multimaterial upgrade will still fit within the enclosure.

Interesting solution. A tile is only 1/4 of an inch. I also added felt feet to the printer and the tile. Zero vibration now.

Re: Prusa Lack enclusure

Oh, a ceramic tile will alleviate the noise too huh 💡 , well, I may have to switch one out from the paver which is an 1&1/2" and gave problems with the cable routing. I did not catch that a tile will remove the noise... if that works I can use the standard cable routing again. Thank you for that clarification.

I like the fill with concrete solution too., but it is a little late for that for me now but that is a good multi-purpose suggestion as well. You should post pics in the enclosure thread so people who are building the enclosure know about it. I would like to see that as well.

Re: Prusa Lack enclusure

I has some vibration reduction with the tile, but the big decrease was the felt feet under the tile and printer.