I have just received the M3D after a loooong wait, and am anxious to get started. Unfortunately, it came with no instructions, no set-up diagram, no software or links. I am not a tech person (I'm a Professor of International Relations); I want to explore with this machine, but I need some hand-holding. For example, What (very basic) software is usable with this machine?; Do I need the software loaded before I plug it in to my computer?; Are the arrow-shaped foam bits on either side parts of the machine or merely packing protection? Where/how does the filament attach/feed? Help?