It would be very very impressive if your CNC machine can produce and assemble electric motors, wiring and circuit boards from raw materials. But then it would not be a CNC machine anymore.
Sure it could. A 5 axis CNC head could mill out the shape for a motor and be given a tool that spools out wire... It wouldn't be easy, but it could build a motor with just that
It could also be given a head to solder circuit boards
CNC (computer numerical control) refers to the control systems rather than the act of milling materials, a 3D printer is a sub category of CNC. They can even use the same control boards.
You also usually process materials before putting them in - they're good at detail work, but if you start with a block of steel you're going to lose a fortune changing out expensive heads (and take forever). So it's fair to assume you're not using raw materials
These machines are absolutely under a million dollars. You can even buy used ones right now for pennies on the dollar because a shitload of American metal shops just went out of business.
I can understand that when the site is selling sneakers or a PS3 but is there a big market on scalping CNC machines? Plus I figure it would be trivial to create a bot that would create a comment on each post asking for the price so the sites bot sends the email with the price.
Makes it harder for your competitors to undercut you in prices. Not impossible, just harder. Most locks are just to make something more difficult so you give up. They aren't impossible.
Another likely reason is that the price varies based on material/labor cost and they don't want a set price being advertised. The price probably dynamically varies.
Ahhh just a turn of phrase. Not literally pennies on the dollar, but very cheap compared to new!
Literally, on CNCmachines.com they sell 5 axis milling machines for as low as 50K i've seen. There's also tons of auctions on cnc machines due to all of the shops closing like I said.
How much do you suppose it costs to move and set up one of these babies in a new location? I bet the sellers would be happy to have a buyer just get it out of their building.
This isn't even close to a million dollar machine. Those are all at least 6 axis mill turns with full enclosures and insane software packages in the control.