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Two teens built this Lego robot to sign Christmas cards for them

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The Holiday Plott3r is a Lego MindStorms-powered creation that cleverly uses Lego’s modular robotic platform to print Christmas cards in snowflake, holiday tree, and Santa designs. The Seshans’ festive creation seems to be working similar to a dot-matrix printer, using two markers to create the images dot by dot, which is pretty impressive given that it’s made out of, well, Lego. When the printing is done, a second contraption slides out an envelope ready for your beautiful, new card.
via The Verge

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