Injection molded or RP? Hard to tell on these plastic models

July 22, 2010
A new rapid prototyping machine from Z-Corp. additively builds parts that end up looking as if they were injection molded.

A new rapid prototyping machine additively builds parts that end up looking as if they were injection molded. The ZBuilder Ultra from Z-Corp., Burlington, Mass., makes components using a digital light processor projector that solidifies a liquid photopolymer. According to the developer, the machine builds working plastic prototypes in half the time needed by other RP machines and at one-third the price of using stereolithography. The machine makes parts with tolerances of +/- 0.008 in. with features down to 0.005 in. in size and smooth surfaces. The photopolymer’s properties are similar to those of ABS.


About the Author

Leslie Gordon

Leslie serves as Senior Editor - 5 years of service. M.S. Information Architecture and Knowledge Management, Kent State University. BA English, Cleveland State University.

Work Experience: Automation Operator, TRW Inc.; Associate Editor, American Machinist. Primary editor for CAD/CAM technology.

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