3D Model of a Coin

3D Model of a Coin

Using Zeiss' X-Ray Computed Tomography (CT) scanning service to create high resolution CAD model of a Dime (10 cent piece).

Normally, a Dime would not be a good subject for CT scanning; coins are relatively small with intricate detail and are made of dense metals. To get around the density issue, I used very low shrinkage silicone rubber to create molds of both sides of a Dime. I then cast urethane plastic replicas and sent the replicas to Zeiss for scanning. Careful vacuum degassing of the silicone and urethane was critical to capturing the intricate details.

Zeiss' Metrotom 800 CT scanner is able to capture very small details, as small as .01mm in some cases. It is also accurate to +/-.0045mm. The high resolution and accuracy coupled with the carefully crafted replicas should produce exceptional CAD models...