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Sonoma company finds new business using 3-D printer

  • The co-owners of Images in Motion, Kamela Portuges and Lee Armstrong, hold up a scaled replicas of a Tyrannosaurus rex skull they built with a 3-D printer at their studio in Sonoma. (CONNER JAY/Press Democrat)

In a small workshop on a quiet Boyes Hot Springs street, Kamela Portuges delicately brushes dust off the skull of a Tyrannosaurus rex with all the care of a paleontologist.

But Portuges’ background is in puppetry and sculpting, not prehistoric reptiles. Her tiny company makes replicas of dinosaur bones using a 3-D printer, a cutting-edge technology that is gaining new uses at companies across the country.

“I’ve been fascinated with 3-D printing for a long time,” Portuges said. “I love dinosaurs. It’s very exciting to be part of this.”

The company, Images in 3D, fabricates scale models of dinosaur fossils for museums and collectors.

Portuges and her partner, Lee Armstrong, founded parent company Images in Motion in 1987 and have created models and puppets for movies and TV shows using traditional molding and casting methods. Their credits include “James and the Giant Peach,” “Being John Malkovich” and “Ratatouille.”

In January, they acquired two 3-D printers from a Bay Area animation studio. They use the printers in their work for the studio and for their own enterprise.

As the name implies, a 3-D printer works much like a traditional printer, but produces copies of three-dimensional objects from a scan of the original. Instead of ink, a nozzle lays down layer upon layer of material until the object takes shape.

The company has two Z-Corporation 3-D printers that use a gypsum-based powder. The technology, still in its infancy, is expensive and time-consuming. A 30-pound tub of gypsum powder costs $1,000, and the machine takes nine hours to make a set of four 7-inch T. rex skulls.

The Sonoma-based company of four has annual revenues of $500,000, though only a fraction of that comes from 3-D printing. The T. rex, Stegosaurus and Camarasaurus skulls are sold through The Bone Room and the Black Hills Institute. PaleoMill provides the digital scans of the original fossils.

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