THREE-DIMENSIONAL PRINTING EXCESS DEPOSITED PARTICULATE HANDLING

A three-dimensional printing apparatus is disclosed has one or more troughs for receiving excess deposited particulate. Such troughs may be positioned to receive the excess deposited particulate into a particulate receiving chamber of the trough. An evacuation chamber is located at the bottom of eac...

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Bibliographische Detailangaben
Hauptverfasser:	DUGAN, Anthony, S, BRUNERMER, Daniel, T, LIZZI, Thomas
Format:	Patent
Sprache:	eng ; fre ; ger
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 CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STAMPS TRANSPORTING TYPEWRITERS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A three-dimensional printing apparatus is disclosed has one or more troughs for receiving excess deposited particulate. Such troughs may be positioned to receive the excess deposited particulate into a particulate receiving chamber of the trough. An evacuation chamber is located at the bottom of each trough. A partition separates the evacuation chamber from the receiving chamber of the trough. The partition is selectively perforated to permit a desired amount of the particulate to flow into the evacuation chamber from the receiving chamber. The evacuation chamber is connected to a vacuum source to periodically or continuously draw ambient gas from a gas inlet to the evacuation chamber and/or from the receiving chamber through the perforations of the partition and then through the evacuation chamber toward the vacuum source to entrain an amount of the particulate and carry the entrained particulate out of the evacuation chamber.