I have used, in order: Glue stick on glass, then a PEI surface on glass (both on a different printer), then the BuildTak that came on the N2, which lasted me 2 weeks, and then just glass with hair spray. And after trying the glass with hairspray there is no going back for me. I’ve been on it for about 2 years.
Here is what you need:
1. https://www.amazon.com/dp/B073PP96Q5/re ... rd_w=ssZqy
2. https://www.amazon.com/Aqua-Net-Extra-P ... extra+hold
That’s it. For the scraper you can get any scraper blade from a hardware store. I just linked the first one I came across on amazon. For the hair spray, the one I linked is the only one I’ve tried, so I can’t speak for any other type of hairspray. These sell for less than $3 in Wal Mart if you are in the US. And I think Wal Mart would carry the scraper as well.
You will need that scraper to properly remove the BuildTak and the leftover glue from the glass plate. That scraper is much better than any spatula for removing prints because it really gets in between the print and the surface. But the thing is, you can only use a blade scraper like this one if you are printing on glass. If you use it on a fancy build surface you will ruin your fancy/expensive build surface. This is why my BuildTak lasted only 2 weeks and I’m happier for it. The benefit of printing on glass is that glass lasts forever, you don’t need to worry about treating it with care. There is a reason why Ultimakers still print on glass. And here is the kicker, when your print is done you can remove the bed and flip it. Because it is transparent you can see your print through the back of the build plate and rub ice cubes exactly behind the print. The cold makes the prints pop off the build surface. Of course if you are in a hurry and the print is not very large you can just use the scraper. But for prints with large surfaces the ice method is the way to go.
I have found this method to be the cheapest and most convenient since the only consumables are $3.00 hair spray that lasts for many many prints, and ice which is basically free.
The only downside compared to fancy build surfaces is that you need to take your build plate outside from time to time and spray it with more hairspray. I usually print in different areas of the build plate so I’m printing on fresh hairspray most of the time until I finally decide to reapply a new coat. But this is just a matter of taking the plate outside, spraying a thin coat, and putting the plate in the printer with the bedplate temperature set to 55 deg to dry the coat. It takes 1 minute to apply and about 5 minutes to dry. But this is a trade I gladly make in exchange for not having to treat my build surface with any care.
So since you are going to remove the BuildTak anyway, and you should get a scraper to remove it, I say you get the hairspray and give it a shot. You have nothing to lose and may find you don’t need the BuildTak after all.