In the resin systems, there is healthy global competition to refine the current resins and, apparently, to look for the next resin to introduce a step change in material properties. There is every expectation that this will continue. The lack of investigation of filled resins outside of Japan is of some concern. However, if the direct metal or high-dimensional-quality cast metal schemes work, then the need for a filled resin tool will be greatly reduced. Researchers' eyes should be trained on the goal of dramatically moving RP materials up the property map (Fig. 5.1). In resins, this is being done primarily in the competitive marketplace.

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Published: March 1997; WTEC Hyper-Librarian