2. Material projection
A photopolymer is sprayed in drop form onto a printing plate. Once deposited on the plate, the photosensitive material is cross-linked under UV light to solidify it. The rest of the process consists of spraying new drops, possibly of a different composition, on top of the previous ones, and building up the required part layer by layer (figure 2 ). At the end of the printing process, the printed part is separated from the tray and can undergo post-processing (removal of supports) and finishing steps (coloring, for example).
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Material projection
Layer lamination
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"Additive manufacturing -3D printing"
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