Heated bed insulation

Has anyone used this to provide insulation under there heated bed?
Attachment 4177

ooh youll have to let us know how it works... i'm using cardboard

I have cork under mine.

I, too, am using cork.

I have cork on the underside of my heated pad, and two layers of aluminium cooking foil between the heated pad and the glass sheet.

OME

why did you decide to add the alum foil under the glass?

Hmm looks like an interesting product to try. I would be a little concerned that it is normally used to insulate pipes from a cold environment instead of being heat resistant. The concern being the product may melt when introduced to 110C, but it is worth trying out to see!

What thickness is the cork you guys are using?

Robert

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Originally Posted by gmay3

Hmm looks like an interesting product to try. I would be a little concerned that it is normally used to insulate pipes from a cold environment instead of being heat resistant. The concern being the product may melt when introduced to 110C, but it is worth trying out to see!

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I havent noticed any issues with it so far, bed it usually at 120 degrees

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Originally Posted by adamfilip

why did you decide to add the alum foil under the glass?

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I put the aluminium foil between the heatbed and the glass to try to ensure that they were both in contact with a heat conductive medium. Aluminium conducts heat a million times better than air.

OME

Aluminium (or aluminum; see spelling differences)

Is that alumin-ium, or alu-mini-um?

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Originally Posted by old man emu

I have cork on the underside of my heated pad, and two layers of aluminium cooking foil between the heated pad and the glass sheet.

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Where can I buy sheets of cork?

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Originally Posted by Roxy

Where can I buy sheets of cork?

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I ordered a roll today from Amazon, I expect I might have to cut it and let it flatten out for a while though..

I got a pack from Home Depot. They were too big, so I had to cut it down, but that's better than being too small.

For those of you using cork, any specific thickness or type? Also, do you find that it works well?

I'm thinking I would like to try a sheet that is 1/4" think under the bed. Does anybody have suggestions or warnings or sources of material?

I used 1/4" cork that was sold at Lowes as a package of four tiles to use to make a bulletin board. since I'm using the spacer at one corner of the bed that was 1/4", the cork fills the space nicely. you will have to trim out holes for the bed bolts and I also made a V channel in the top of the cork under the pcb, so the cork doesn't put pressure on the thermistor and wires/bow the PCB up in the middle.

I bought a thin sheet roll of cork from amazon when I was building my printer. I would advise against it, it's too thick when doubled and too thin when only using a single sheet. It also is a pain to work with since it's so curled up. I think multiple flat tiles or one large flat sheet would be a much better approach.

I am debating on trying to double up my cork as the springs are really wound down tight.