If your PLA isn't sticking...

... to your glass printing bed, one thing to do is clean it with mild soapy water, and *definitely NOT* any kind of screen cleaner.

I just wasted a few hours due to this, so thought I'd warn about it. I was reading many topics about this on here, and none mentioned it as a possible issue, so hope at least it helps someone!

[marcos.scriven.org]

White vinegar works well too, as it removes all fat traces. And it's cheap. And smeels good (in my opinion).

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Most of my technical comments should be correct, but is THIS one ?
Anyway, as a rule of thumb, always double check what people write.