SoliForum - 3D Printing Community — Everything was fine, until....

Re: Everything was fine, until....

null@example.com (heartless) — Mon, 14 Sep 2015 19:29:39 +0000

yeah, that is what I did, too - 4+ mm thick - takes forever for it to get hot with that small heat pad, but once it does, it holds it nice.

Re: Everything was fine, until....

null@example.com (Ski52) — Mon, 14 Sep 2015 00:08:38 +0000

I will keep that in mind... Thanx
Also found 3M 468m is good to 400F, but it is rather expensive.
I just may replace the deck with a machined piece from where I work, if I do, it will be substantially thicker than the original.

Re: Everything was fine, until....

null@example.com (heartless) — Sun, 13 Sep 2015 18:38:56 +0000

I used a high temp copper gasket stuff (meant for head gaskets in auto applications) when i transplanted mine - seems to be working fine so far and that was several months ago.

Re: Everything was fine, until....

null@example.com (Ski52) — Sat, 12 Sep 2015 13:42:16 +0000

The glass difference is slight... 2.3mm plain 2.9mm tempered. Used to be able to print when the indicator hit 95C, now I have to wait another 10 -15 min. Like I said, I almost destroyed a couple of prints trying to get them off the glass with a razor blade.
Does anyone know of a thermal adhesive or double sided tape that will hold the heat pad on another piece of machined aluminum? I think my plate is developing a slight warp.

Re: Everything was fine, until....

null@example.com (n2ri) — Fri, 11 Sep 2015 05:04:44 +0000

also longer to cool

Re: Everything was fine, until....

null@example.com (heartless) — Thu, 10 Sep 2015 20:46:07 +0000

the thicker things are, the longer it will take to get fully heated up - the thermistor may read hot, but it takes a little to get the heat soaked through completely. I found this out when I upgraded the aluminum plate for mine - went thicker (4+ mm) trying to eliminate warping - takes a good 20 mins to get it fully heated up with the old stock heat pad, but it does get there eventually.

Re: Everything was fine, until....

null@example.com (Ski52) — Wed, 09 Sep 2015 21:28:26 +0000

I may have complained too soon! Just printed a couple of small things for SHMBO and I almost couldn't get them off the glass. I thing I may leave the Kapton tape off and see... Guess I really have to let it heat up.

Everything was fine, until....

null@example.com (Ski52) — Wed, 09 Sep 2015 21:15:01 +0000

... I changed the glass today. Went from plain old window glass to a piece of thicker tempered (old scanner top) glass.
Before I started I was printing ABS @ 210/95 1 skirt & no brim - had to almost pry it off the glass. New glass - 220/98 1 skirt 3 brim, and it doesn't stick worth a hoot. My old bed limits out at about 100 - 105. I could go back to the old window glass, I guess..... I also removed the old Kapton tape, haven't put new on yet - will probably have to readjust all again.
What did I change that mattered so much? Does tempered glass make that much of a difference?
Suggestions greatly appreciated...

Thanx
Ski