Engineers from NVision Inc., using the company's HandHeld scanner, were able to quickly reverse engineer a large impeller for a major hydroelectric facility, sparing the facility what would have been an extended shutdown had they needed to produce a replacement impeller from scratch. In less than one week, NVision scanned the original impeller and provided a computer model of it to the facility, which then used the model to manufacture a duplicate impeller for installation. In the end, only a relatively short shutdown was necessary to accommodate the scanning and reproduction of the impeller.

The turbines that move the water in hydroelectric plants employ massive impellers to get the job done. In this case, one of the facility's key impellers had suffered damage that forced the facility to replace it. However, the facility did not possess a computer model of the impeller, which was necessary in order to manufacture a replacement.

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