MULTI-COLOR 3D PRINTER

A printer adapted for printing three dimensional (3D) objects with material having two or more colors. The printer includes a print head with an extrusion nozzle having an outlet, a mixing chamber upstream of the outlet, and a heated portion. The printer also includes a print bed with a surface for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CRAWFORD DAVID W, ALTED JORGE, VORIS JEFFREY, CHRISTEN BENJAMIN FOSTER
Format:	Patent
Sprache:	eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A printer adapted for printing three dimensional (3D) objects with material having two or more colors. The printer includes a print head with an extrusion nozzle having an outlet, a mixing chamber upstream of the outlet, and a heated portion. The printer also includes a print bed with a surface for receiving material extruded from the outlet of the extrusion nozzle and a print material supply that is loaded with a filament of a plastic having a first color. The print head is adapted for drawing the filament into the heated portion to liquefy the plastic upstream of or in the mixing chamber. The printer includes a dye supply assembly fluidically coupled with the mixing chamber supplying dyes, such as inks, of two or more colors to the mixing chamber, whereby the liquefied plastic has its color changed from the first color to a second color prior to being extruded.