Good afternoon! I purchased an Ender 3 Pro for my son for Christmas and would like to know what, besides the printer itself, do I need to prepare for so that he can get his hands dirty on the first day? As I currently understand, I'll need access to a computer, 3D models, a slicing program to convert those 3D models to gcode format for use in the printer, an SD card to transfer the gcode to the printer, and filament for the printing. I know this is very simplified, but is that the gist of it?I'm brand new to all of this and know nearly nothing about 3D printing; I just want to make sure that an attempt to do something fun for my son doesn't backfire because I'm unprepared once he opens the box and assembles the printer.Thanks in advance!Baynyn