if you havent already built it might be worth watching some of the youtube videos first. I dont know if we got lucky or not just throwing it together but walks you through squaring everything up, proper tension on the wheels etc... Once it's built take the time to level the crap out of the bed. The included print files are so dialed in they almost always print well then you go to another file and it prints like crap. We just used cheap HF calipers for the extruder measurement and on the test cube to dial in the steppers.
Agreed! A small framing triangle will be your friend when assembling the frame.