SINGLE EXTRUDER CONFIGURATION THAT ENABLES MULTI-COLOR EXTRUSIONS IN THREE-DIMENSIONAL OBJECT PRINTERS
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United States of America Patent
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app pub date -
Nov 14, 2016
filing date -
Nov 14, 2016
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Abstract
An additive manufacturing system has a plurality of manifolds in an extruder. Each manifold is connected to at least one nozzle of the extruder to enable the at least one nozzle to extrude thermoplastic material through a corresponding aperture in a faceplate mounted to the extruder. A plurality of valves is configured between each manifold and each nozzle connected to the manifold to enable the nozzles connected to a manifold to extrude thermoplastic material from the manifold selectively. The faceplate is also configured for rotation about an axis perpendicular to the faceplate to enable different orientations of the nozzles in the apertures of the faceplate. The different manifolds of the extruder enable a plurality of thermoplastic materials having a different property to be extruded simultaneously so the materials can join to one another while the materials are at an elevated temperature.
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