Powder-layer three-dimensional printer with smoothing device

Powder layer smoothing devices (34) adapted for use with powder-layer three-dimensional printers (10) are described. The smoothing devices (34) include a counter rotating roller (36, 50, 60) having a complex powder engaging face (38) that may include a series or plurality of flutes (54) or may inclu...

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Bibliographische Detailangaben
Hauptverfasser:	Stroud, Adam W, McCoy, Michael John, Lucas, Rick D, Dugan, Anthony S, Bolt, Joseph J
Format:	Patent
Sprache:	eng
Schlagworte:	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:	Powder layer smoothing devices (34) adapted for use with powder-layer three-dimensional printers (10) are described. The smoothing devices (34) include a counter rotating roller (36, 50, 60) having a complex powder engaging face (38) that may include a series or plurality of flutes (54) or may include knurling (64) extending along at least a portion of the counter rotating roller (36, 50, 60) along its rotational axis (56, 66). The smoothing device (34) may also include a vertically adjustable finishing roller (35) to follow the counter rotating roller (36, 50, 60) across the build box (12) of the powder-layer three-dimensional printer (10).