It's really not that funny, hence why its funny. NC machines have been around since the 50s, and CNC machines have existed since the 60s. I know because I am a Machinist, or a Turner and Fitter to the commonwealth folks.
The poster was unfortunately serious and didn't even really know what this machine was or how old the technology was either. He thought it was "brand new technology". If it had been a joke, I'd laugh, but oh man...
not jokexplaine (1 "e" not 2) but, my fathers company used to have a cnc machine, it was used for CAD work.
basically, you give it a block of soft material which holds its shape, like Styrofoam, and you give it a file containing the object you want, the cnc machine then removes material from the block, until it is in the shape of the object.
it is not a reverse 3d printer, in fact, it could be considered a 3d printer on its own, or considered the father of the 3d printer, as they have been around for about 10, 20 yrs.
What is shown is a CNC mill that uses tooling to remove material from raw stock to get the desired shape (subtractive manufacturing) as opposed to a 3D printer which places material to get the right shape (additive manufacturing)
no, it takes a block of materiel and using its tools, removes materiel from the block until it is in the shape desired of the operator.
google "cnc mills" or "cnc machines"
how would you reverse 3d print something?
I mean I guess it technically is reverse or the opposite of 3d printing cause like olinerocks pointed out its a CNC milling machine which does subtractive manufacturing where in you take away from a material say wood metal or wax to get the desired shape and 3d printing is additive manufacturing where in you add the material until the desired shape is met. so technically hes not wrong in saying its the reverse or opposite of 3d printing but it still sounds odd.
OP, you're not the only one who knows what a CNC router is. Technically anything that cuts from material is the opposite of a 3D printer. That's why this is a joke.
im a manual maintenance machinist/ tool and die maker. i diagnose, disassemble, and repair industrial presses, welders and other machines. i also make the tools and dies that the machines use. i just got a new auto screw machine that im currently trying to figure out as it came with no manual or schematics.