Desktop Metal, Inc.

Alexander Legendre

Matthew McCambridge

Jonah Samuel Myerberg

Robert J Nick

Jamison Go

Michael Goldblatt

Michael Daniel Santorella

Joseph Gabay

George Hudelson

Jake Dec

Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts by directing gas onto, or near to, the powder. While fragile green parts, such as green parts produced by binder jetting, may be fragile with respect to scraping or impacts, such parts may nonetheless be resistance to damage from directed gas, even if directed at a high pressure. Techniques for depowdering through directed application of gas may be automated, thereby mitigating challenges associated with manual depowdering operations.

Techniques for depowdering additively fabricated parts via gas flow and related systems and methods

An additive manufacturing method includes depositing a first amount of metal powder onto a powder bed of a printing system, spreading the first amount of metal powder across the powder bed to form a first layer, and depositing a first amount of binder material on the first layer. The additive manufacturing method also includes exposing the first layer to a first lighting condition, imaging the first layer under the first lighting condition to generate a first image, analyzing the first image of the first layer, and determining whether to adjust at least one printing parameter based on the analyzing.

System and methods for printing defect detection

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Boston, MA, United States of America

Alexander Legendre