Is anyone else having this annoying problem? Lately, my prints have been sticking so well to my abs juiced heated bed that they’re ripping large chunks of glass off with them. Strange thing is, I’ve been printing w/ the same bottle of ABS juice for a long time, and the problem didn’t show up until recently.
I have had this problem before from time to time but with hairspray. Never did figure out what to do about it.
Glass or borosilicate glass?
I use borosilicate glass and I know I have had some rip off with it.
If you let the part sit about 10 minutes with the heat bed turned off, it may just pop off on its own. Of course if you have a 2nd print to do, that makes bed reheating a pain in the butt.
Fact of life sadly. The repeated physical and thermal stresses eventually weaken the surface and flakes can pull off. At a rough estimate 1% of my prints used to end this way. I keep spare packs of IKEA Sorli mirror tiles (200x200 mm) so I can change the bed easily. Since I have been coating the bed in PVA glue, heating to only 55C and printing more in PLA it seems to happen much less often.
Guessing the abs juice is, over time, getting thicker and needs to be thined.
+Nathaniel Stenzel, It’s just glass from a picture frame I got at a .99 store. I always let it cool all the way down, but it’s rare that I get one to pop off by itself.
+Robin Gingerich, Definitely a possibility, which is why stopped shaking the bottle before using it, but maybe it’s still too concentrated. My problem is that my parts sometimes curl up if I don’t use a stronger solution. What concentration do you use?
+en tiresia, I hadn’t thought of the glass weakening from the heat cycling. It probably is a factor.
Other solution is to use a lacquer that loses its properties at low temperatures, like this one: http://store.thingibox.com/en/temperature/11-fixer_lacquer.html
@linco_matic 2mm (or less, if it’s just from a picture frame) is simply too thin to hold up. 3mm glass will last pretty much indefinitely, though it takes a bit longer to heat up and cool down.
If you want to stick with the thinner glass, you might be able to get along by using glue stick instead of juice. When using glue stick, the print pops right off the platform as it cools down, so there’s zero risk of accidentally tearing the glass apart.
this happened to me, i just reduced the amount of abs in my juice.
i have had some success with other things, glue and tapes n all that junk. but nothing is as easy and works as well as abs juice. (in my opinion and experience)
- fyi i used 3mm glass
Wow I always thought you had to use tempered glass on your bed. I also am printing with abs though.
@linco_matic you said “I’ve been printing w/ the same bottle of ABS juice for a long time”
so the acetone in it will have evaporated a bit, making the solution stronger. add some more acetone 
So, as another data point - I had the same happen to me with borosil glass printing T-Glase. It just popped up with a piece of glass stuck to it when cooling on its own. So it happens regardless of material and regardless of glass type as long as you are not using a painter’s tape, i.e. sticking directly to glass…
It also happened to me lots of times, with glass of all widths, until the lacquer come to my life… It is also sold in http://sprayplanet.com and produced by montana colors. Flat surfaces, no warping with the bed at 80º both in ABS and PLA… more than happy with it!
UHU glue. That is all.
Glue Stick, Glue Stick, Glue Stick.
You’ll never look back!