Topic: Very large ABS parts curling, kapton not sticking to build plate?
I've got another new issue that has me a bit confused what to do.
I'm printing some very large parts (with brim they are within a few mm of the limit of my Solidoodle 2 build area). I had issues with them curling and coming off the freshly-applied kapton tape so I re-adjusted stuff, cleaned the tape with acetone, put some tissues to help hold heat at the edge...and now I have a new problem.
My part is sticking to the kapton tape just fine but now the kapton tape is being ripped off the aluminum heated bed the edges of the part curl while being printed.
This is a new issue to me, I've never previously had tape "peal" off the build platform (usually I struggle to remove damaged tape) and I can't find anything about it online (other posts address parts not sticking to tape, this isn't my problem).
I'm using white ABS at 203C and the heated bed at 100C. Since I ran out of the heavier Kapton tape I'd ordered from Solidoodle I got a few 8x10 sheets from Amazon and cut them down after applying them. I liked the old Solidoodle tape, I went probably 2 years of printing before I had to replace the factory sheet of kapton and another year and a bit on the spare sheet I got at the same time as the printer. This new stuff I got starts pealing up (then tearing) after just 2-3 prints.
EDIT:
When I apply my kapton tape I apply it "dry" on the aluminum plate, starting at one edge and working my way across with a credit card or similar thing as a "spreader" to ensure I don't trap any bubbles. I've seen others suggest soapy-water but still skeptical doing this will let the adhesive "stick" as good as just putting it on a clean surface, maybe I'm not understanding something that I need to know.