The CNC router is not only a powerful tool for building, but also a great way to prototype. As shown in the example below, techniques such as engraving and roughing have been employed to create a sample plaque.

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In this particular design, a botanical sketch of a fern is shown highlighted on a silhouette of The Carrie Furnace – a former steel mill in Pittsburgh.

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In order to capture smaller details, a 30 degree V bit was used at less than 1/10″ depth. Also,  a 1/4″ milling bit was used to rough out the larger areas surrounding the building’s outline.

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Plaques like these can later go on to be cast in other materials such as aluminum or iron.

CNC Plaque Engravings

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