All things that you need to know before 3d printing for the first time

Recently I attended a session about 3d printing but it turned out to be an '1 on 1 training', lol. Before that session, I have observed how 3d printer works but have no idea about the design, machine, etc. So that's a quite intensive knowledge transfer. https://www.youtube.com/watch?v=Vx0Z6LplaMU Basically, the printer prints objects layer by layer. …