Robert Philips

US Patent:

20100151136, Jun 17, 2010

Filed:

Feb 23, 2010

Appl. No.:

12/710594

Inventors:

Thomas Davidson - Arlington MA, US
Robert A. Philips - Acton MA, US
Andres T. Hernandes - Glendale CA, US
David B. Russell - Burlington MA, US
Kevin Roche - Lowell MA, US
Andrew Berlin - Brighton MA, US
Joshua P. Kinsley - Needham MA, US
Darul Kisai - Sri Hartamas, MY

Assignee:

Z Corporation - Burlington MA

International Classification:

B05D 3/12

US Classification:

427356

Abstract:

A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also includes a vacuum system for loading powder into a feed reservoir or chamber. The vacuum system can also be used to cleanup excess powder. Other powder control features include powder gutters and magnetic powder plows. During printing, a cleaning system operates to remove powder from the printheads. In the event of a printhead or jet failure, the failure can be detected and corrective measures taken automatically. After printing, the model can be depowdered and infiltrated in an enclosure.