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Metal 3d-printed part demo video. Almost every powder-bed based AM system uses a powder deposition method consisting of a coating mechanism to spread a powder layer onto a substrate plate and a powder reservoir. Usually the layers have a thickness of 20 to 100 µm. Once the powder layer is distributed, a 2D slice is either bound together, known as 3D-Printing, or melted using an energy beam applied to the powder bed. In the second case the energy source is normally one high-power laser, but state