Everyone’s been there: Prints just not sticking to the bed or worse, coming off a few layers in after you’ve already left the printer to itself. Here are five easy ways, including bed leveling, to make your bed adhesion great again!
https://www.youtube.com/watch?v=AaF28dnDgKA
Thanks again for the Awesome video @Thomas_Sanladerer is there a chance that you could do something similar to this for different materials, such as the best bed material or coatings to add to the bed for different types of plastic. I recently found it very hard to get the first layer to stick with PETG after exclusively printing with PLA.
Can you post a close up high-res pic for each first layer samples?
@Alex_Krause did you try increasing the bed temperature up untill 100C ?
@Alex_Krause 75°C plus a fresh layer of glue stick should be a great starting point for PETG - I think every copolyester in the Filaween series can be printed that way.
@Thomas_Sanladerer
I’ve seen in the YouTube comments that you plan to make a video about different built plate surfaces. Do you plan to include FR4 plates? They are very cheap, you can get them in several colors and they are extremely flat (obviously due to the production process)
I just tried some prints with a 2mm plate (sanded with a 240er sandpaper) and so far everything sticks like hell as soon as you have a bed temp around 50-80 degrees. I’ve tried nylon, abs, pla and ninjaflex so far and I’m surprised how well it works for this hilarious low price. But I haven’t tried these thing without heating. And a more thorough test, like yours usually are, would be more informative of course 
@Sven_Eric_Nielsen intersting, i hadn’t considered bare FR4 - but it makes sense, as it’s very similar to carbon fiber plates, some of which also give great adhesion. Will try!
@Thomas_Sanladerer
Im curious to see what your impression will be. Obviously you have way more material types available than me 
Just a small tip:
One of my plates tended to bend after the first high bed temperature (>100°)
So I usually preheat them once, check if they bend, and then just flip them if nessecary. Usually you only need to do this once.