The 3D system I saw used a highpowered CO2 laser, with
green laser to see wher the beam was, writing in a liquid
plasitic solution. As the CO2 beam heated the misx it
"firmed up" and became solid. I have a little model of a
wildcat that the made for me. The plastic is not all that tuff,
and is used as a master to cast other, harder plastic.
Most often they make what might be thought of as negative,
hollow half images. A guy lost half of his mandible in a bike
accicent. They took a CAT file of the remaing half,
mirror/reversed the image, made a hollow master and cast
a replacement from a phospher rich plastic that his body
acepted. After a year or so this body had bone growing through
out the plastic you couldn't tell he had been a bad accident.
I worked in the University of Kentucky's TV department
and that was one of the neater things I saw.
Terry

wrote:

The 3D system I saw used a highpowered CO2 laser, with
green laser to see wher the beam was, writing in a liquid
plasitic solution. As the CO2 beam heated the misx it
"firmed up" and became solid. I have a little model of a
wildcat that the made for me. The plastic is not all that tuff,
and is used as a master to cast other, harder plastic.
Most often they make what might be thought of as negative,
hollow half images. A guy lost half of his mandible in a bike
accicent. They took a CAT file of the remaing half,
mirror/reversed the image, made a hollow master and cast
a replacement from a phospher rich plastic that his body
acepted. After a year or so this body had bone growing through
out the plastic you couldn't tell he had been a bad accident.
I worked in the University of Kentucky's TV department
and that was one of the neater things I saw.


Impressive. I didn't even think of medical uses. It makes perfect
sense. They could probably apply it to hip replacement surgery and
places where movement is needed, like in the joints.



mike

Beam me up,Scotty.
cuhulin

Hmmmmm,can I get me an,,,, oh,perish that idea! I was at ammo school at
Fort Knox,Kentucky in November and December of 1963.
cuhulin