Metal prototypes are frequently difficult and complicated to manufacture.

Metal prototypes are frequently difficult and complicated to manufacture. however engineers at the Fraunhofer Institute for Production Technology (IPT) in Aachen, Germany; are using selective laser sintering to make mold directly from ceramic comminute -- without any time consuming intermediate stages.
"The traditional means of producing molds for precision casting is complicated," says Holger Wirtz of the IPT. "The first degree is to apply several coats of slurry and sand to a wax mould until a thick layer has formed around the gauge The wax is then dissolveed away, and the

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