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LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

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Re: LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

#11

Post by dinkledunk »

bmitc wrote: post #5
redhal wrote: post #2

Also works great as a 3D printer enclosure https://www.thingiverse.com/thing:2864118

Lack is made out of super cheap particle board. Is it stable enough to sit the 3D printer on? I would assume it would add some errors to the printing process.

It works fine and lots of people do it, I have been using mine without issue for a few years now. It helps to put a concrete slab in it, but it's not necessary. The lack table does have a tendency to amplify the noise though.

Here is a guide by Prusa to build one for their printers: https://blog.prusa3d.com/mmu2s-printer-enclosure_30215/

Re: LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

#12

Post by crispyambulance »

It seems like a sketchy idea to directly screw in the server to the table legs. Much better to install rack sliders that are supported from both front and back.

Just don't pull out the server if there's no one holding down the table. Or better, keep servers where they belong: in a freaking data center, NOT your house ! :-)

Re: LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

#13

Post by bborud »

daneel_w wrote: post #8

The melamine pads under the feet of the Lack tables become brittle with time and eventually crack under only 30-ish kg of weight, causing the table to slant. My own experience.

I wonder if it would help to fill them with some high density expanding foam? (Using some form of resin would probably be prohibitively expensive).

Re: LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

#15

Post by buffet_overflow »

bmitc wrote: post #5
redhal wrote: post #2

Also works great as a 3D printer enclosure https://www.thingiverse.com/thing:2864118

Lack is made out of super cheap particle board. Is it stable enough to sit the 3D printer on? I would assume it would add some errors to the printing process.

It’s perfectly adequate for stability. People have suspended printers in midair with elastic cables, or printed upside down, and prints have come out fine. The printer frame is providing most of the rigidity in this case. Don’t get me wrong, people that place their printers on spring like things tend to get lower quality prints so there is a limit there.

The downside about the IKEA particleboard over hollow cardboard core is more about sound and resonance imo. It can act as a speaker for printer vibrations and amplify that sound in the same room or to the floor below it.

A popular “mod” is to place a concrete paver block on top of some isolation pad, typically made of rubber or sorbothane to increase the functional mass of the printer and lower the resonant frequencies created during printing.

I personally have two of those enclosures stacked, with a printer in each one.

Re: LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

#19

Post by sircastor »

I naively put an old LaCie 1U server under a Lack table 13 years ago, thinking it would be a great media server in my living room. I had no idea how loud rackmount fans were. It was obviously unusable for watching any kind of media.

Re: LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)

#20

Post by [deleted] »

bborud wrote: post #13
daneel_w wrote: post #8

The melamine pads under the feet of the Lack tables become brittle with time and eventually crack under only 30-ish kg of weight, causing the table to slant. My own experience.

I wonder if it would help to fill them with some high density expanding foam? (Using some form of resin would probably be prohibitively expensive).

[deleted]
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