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My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 10:31 am
by pswindler
I realized that a tremendous amount of heat was being lost the the huge 60mm fan at the base, as well as the powersupply fan. So i bought fiberglass insulation from homedepo cut it to match the shapes at the bottom of the plate, and used kapton tape to attach it. make sure you remove the material from where the feet will sit!!! and the insulation should allow for room above the fan for the power supply. i was able to go to 90 with a uncovered heat bed now i can get to 100, with it covered i can get to 120 relatively quickly. i did not add it to the center becasue i wanted more cooling in the center for better heat distribution over the whole plate. i will add some pictures as soon as i figure our how.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 10:37 am
by pswindler
here are the pictures, takes about an hour, but take your time do it right. also this picture was taken before i removed the tape from the foot contacts.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 1:41 pm
by Tincho85
That's very clever, thanks for sharing.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 1:55 pm
by adarcher
That's a great idea! It'll also help with keeping the bottom area from over heating on the V2.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 2:30 pm
by Xenocrates
I recall someone did the same thing with an aerogel blanket, for the same reasons. Looks like a fine solution to the issue (I prefer the Tim Taylor approach personally, but I can see reasons not to go for it)

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 2:43 pm
by geneb
This neat trick isn't applicable to a v2. At all. :)

g.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 2:49 pm
by Noircogi
This looks like a great, simple mod. Thanks! I think I'll do it to help keep the base cooler and reduce power consumption, even though I already upgraded my PS and my bed will now heat to 100C in around 3 minutes.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 2:51 pm
by pswindler
update! i was wrong with my initial improvement numbers, i can get much hotter without anything insulating the top. with no top insulator i can get to 115 in 40 min, 110 in 30 min , i can reliably hold 110 while printing, this is a huge improvment and only cost 2 bucks. highly recommended!

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 2:53 pm
by pswindler
and yes the base stays way cooler, the power supply fan hardly ever turns on now. forget all that with getting a new powersupply, this is far cheaper and easyer.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 3:46 pm
by Eaglezsoar
A very cool idea! :)

Re: My solution to heatbed temp- insulating the bottom!

Posted: Thu Sep 29, 2016 5:24 pm
by Jrjones
Xenocrates wrote:I recall someone did the same thing with an aerogel blanket, for the same reasons. Looks like a fine solution to the issue (I prefer the Tim Taylor approach personally, but I can see reasons not to go for it)


Yes, I did this to my V2 with Aerogel.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Sun Oct 09, 2016 7:15 pm
by Twac1
Here's what I did. Works good!

Re: My solution to heatbed temp- insulating the bottom!

Posted: Sun Oct 09, 2016 7:29 pm
by gchristopher
geneb wrote:This neat trick isn't applicable to a v2. At all. :)

g.

Couldn't you increase the length of the spacer beneath the wood snowflake plate and put a piece of insulation under that?

Re: My solution to heatbed temp- insulating the bottom!

Posted: Sun Oct 09, 2016 9:51 pm
by pswindler
Twac1 wrote:Here's what I did. Works good!


that is very clean, and looks nice! also i recommend putting a thin piece of sheet metal over the power supply, but on the edges of the wood frame that holds it, that puts like 3/8 inch of space over the power supply. it helped allot because when that fan comes on i would see a big drop in temp without it.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Sun Oct 09, 2016 10:02 pm
by Qdeathstar
oooh! you made a pumpkin. How festive.

Re: My solution to heatbed temp- insulating the bottom!

Posted: Mon Oct 10, 2016 4:03 am
by DeltaCon
gchristopher wrote:
geneb wrote:This neat trick isn't applicable to a v2. At all. :)
Couldn't you increase the length of the spacer beneath the wood snowflake plate and put a piece of insulation under that?

Yes you could, but it will cost you build height. Besides there is no real airflow between the bottom of the onyx and the top plate of the base on a V2, So I don't think it will bring much improvement.