The rotational position of an object relative to a specified coordinate system. In additive manufacturing, orientation usually refers to how the part is rotated in the build volume with respect to the build direction. Because additive manufacturing is a layered manufacturing process, the orientation of a part determines how the part is converted into stacked layers of material. It, therefore, has a significant impact on the supports needed, the build time, the strength of the resulting part, and the surface finish.

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