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Design for CNC by Anne Filson, Anna Kaziunas France, Gary Rohrbacher

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Chapter 2. End Mill to Furniture Collection

Quite a few years ago, a colleague of ours took a moonlighting job designing and building a CNC-fabricated wall of shelving for a client. He returned exhausted after a weekend of pounding his bookshelf parts together with a sledgehammer. Brute force was the only way to get the slots in his horizontal shelves to fit completely into the slots of his vertical dividers. Our friend’s frustrations stemmed from overlooking the role of the rotational cutter in subtractive machining.

Subtractive Machining

Routers and milling machines (see Chapter 6) use extremely sharp, round, spinning tools, or rotational cutters, called end mills, to make cuts in a workpiece, or the material being cut. Subtraction works ...

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