System for controlling operation of a printer during three-dimensional object printing with reference to a distance from the surface of object

A controller in a printer operates one or more printheads in the printer with reference to a predetermined height of material above a surface of a member and a height of a top layer of material above the surface of the member. The height of the top layer is identified with reference to a first senso...

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Bibliographische Detailangaben
Hauptverfasser:	Donaldson Patricia J, Folkins Jeffrey J
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 CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME 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 controller in a printer operates one or more printheads in the printer with reference to a predetermined height of material above a surface of a member and a height of a top layer of material above the surface of the member. The height of the top layer is identified with reference to a first sensor that generates data corresponding to a height of a face of one of the printheads above the surface of the member and a second sensor that generates data corresponding to a distance between the face of one of the printheads and the top layer of material.