The "FlashForge 3d Printer Creator Pro" states it has an aluminum build plate. Is there anything I must purchase to cover that plate when doing ABS or PLA prints? I hear talk of painters tape, hairspray, Octave Kapton Tape and etc. I will mostly be doing ABS.

I imagine when I get the printer I will need to level the print bed. Load filament, select print bed and print head temperatures. After that can I simply download a stl file from Thingiverse to SD card then print it? Or what more prep work is there?