[CapitalistCartr]

The author has no understanding of CNC machines and didn't do his homework. This is all completely wrong:

"Like any computer-numerically-controlled (or CNC) mill, the one-foot-cubed black box uses a drill bit mounted on a head that moves in three dimensions to automatically carve digitally-modeled shapes into polymer, wood or aluminum."

CNCs use drill bits for drilling, but not cutting. They use a carbide router bit. Look like a drill bit, but isn't. His machine might use a drill bit, but it's not the norm and "any CNC" doesn't.

CNC routers, or mills, divide into those that cut steel and those that cut everything else, not "polymer, wood or aluminum". From this article, I can't tell nearly as much as I'd like to about this machine, and I do this for a living.