Hi all,
I had some problems with the first layer not sticking to the printbed, and I was using the blue painters tape. I read somewhere the tape can be a bit greasy/oily.
Simplest sulution: clean it.
I'm currently using IPA wipes (wipes with Isopropenol - synthetic alcohol) this will evaporate quickly and will leave your painters tape dry in seconds again.
Now I have to pull like crazy, allmost pulling off the blue tape. It sticks like a charm.
For everyone who has sticking problems, this is a simple and fast solution.
Enjoy