Nesting is placing trays or covers of the same size, generally for shipping, or boxes of varying sizes, one within another. Due to the way printing is done, as long as inner parts of a container fit into a larger whole, you may benefit from the same price. Nesting is particularly useful in 3D printing, where particularly intricate features can be implemented into a particular-sized "nest." 

PC: 3DPrintUK

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