Using selective laser sintering and stereolithography, GM engineers are quickly able to turn computer models into one-off parts at the company's Rapid Prototype Laboratory in Warren, Michigan.

Using selective laser sintering and stereolithography, GM engineers are quickly able to turn computer models into one-off parts at the company's Rapid Prototype Laboratory in Warren, Michigan.

While these components have a number of different applications, aerodynamic engineers have been using the process to make a variety of different items - such as bumpers, grilles, spoilers and mirrors - for wind tunnel testing.

In the past, modelers would have to carve a rough approximation of each component, by hand, from foam or wood. Now, engineers are able to build accurate representations of future components quickly and cheaply.

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