A CNC machine is basically an automated milling machine. It requires a
piece of (pre-made) stock that is larger than the piece you're trying to
make, and can only make one piece at a time. A 3D printer can make multiple
pieces simultaneously, and makes them from component materials, combined at
the time of manufacture (you can combine different types of plastics,
resins, or metals all at the same time). Also, a 3D printer can make an
item that is trapped inside another item without a seam (for example, you
can make a hollow sphere with something loose inside without any seam on
the sphere).
--
Mario
http://mario.silent-tower.org/
On Sat, Feb 8, 2014 at 7:39 AM, <> wrote:
>
>
> Hi Guys,
>
> I seem to remember that there was a experiment done about two years ago
> using a 9mm handgun. It was made in "plastic" and it fired one round OK
> but on the second or third the recover exploded, happily it was during a
> bench test so no injury's occurred.
>
> A thought, 3D imaging can make the exterior of a handgun but to make the
> interior pieces the firearm would need to be broken down into component
> parts,yes???
>
> A second thought about ballistics. If a 3D imager could make a duplicate
> barrel of a handgun used in a armed robbery how would the police use
> ballistics anymore to trace the handgun back, now to a number of owners?,
> ouch.
>
> My brother works in a fabrication plant and one of the machines he calls a
> CandC machine. Its computer controlled, laser scanning fabricator. It
> sound a lot like a 3D imager and I'm wondering if the two could be
> incorporated to manufacture parts without the poorer quality? Also do you
> need to scan the object each time you make it or could the scanned image
> be stored in a computer and pulled out when needed?
>
> No matter what its interesting tech, todays 3D imager. tomorrows
> fabricator?
>
> Roger
>
>
>
>
piece of (pre-made) stock that is larger than the piece you're trying to
make, and can only make one piece at a time. A 3D printer can make multiple
pieces simultaneously, and makes them from component materials, combined at
the time of manufacture (you can combine different types of plastics,
resins, or metals all at the same time). Also, a 3D printer can make an
item that is trapped inside another item without a seam (for example, you
can make a hollow sphere with something loose inside without any seam on
the sphere).
--
Mario
http://mario.silent-tower.org/
On Sat, Feb 8, 2014 at 7:39 AM, <> wrote:
>
>
> Hi Guys,
>
> I seem to remember that there was a experiment done about two years ago
> using a 9mm handgun. It was made in "plastic" and it fired one round OK
> but on the second or third the recover exploded, happily it was during a
> bench test so no injury's occurred.
>
> A thought, 3D imaging can make the exterior of a handgun but to make the
> interior pieces the firearm would need to be broken down into component
> parts,yes???
>
> A second thought about ballistics. If a 3D imager could make a duplicate
> barrel of a handgun used in a armed robbery how would the police use
> ballistics anymore to trace the handgun back, now to a number of owners?,
> ouch.
>
> My brother works in a fabrication plant and one of the machines he calls a
> CandC machine. Its computer controlled, laser scanning fabricator. It
> sound a lot like a 3D imager and I'm wondering if the two could be
> incorporated to manufacture parts without the poorer quality? Also do you
> need to scan the object each time you make it or could the scanned image
> be stored in a computer and pulled out when needed?
>
> No matter what its interesting tech, todays 3D imager. tomorrows
> fabricator?
>
> Roger
>
>
>
>