Google Inc.

Desktop Metal, Inc.

Daniel David Sachs

Justin Richard Wodrich

Jung Geun Tak

Timothy Michael Vanderet

Laurie Kwan

Jamison Go

Jonah Samuel Myerberg

Robert J Nick

Michael Goldblatt

Paul A Hoisington

Emanuel Michael Sachs

Justin Cumming

Ricardo Fulop

Robert Michael Shydo, Jr

George Hudelson

Charles Edward Martin

Alexander K McCalmont

Eric Wong

Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.

Techniques for depowdering additively fabricated parts through fluid immersion and related systems and methods

A compact electronic device has a touch sensor and/or a microphone that are concealed within a housing at least partially wrapped by an acoustically porous cover. In some implementations, the touch sensor includes a sensing portion and a contact portion extending from the sensing portion. While the sensing portion is placed in proximity to an interior surface of the housing to detect a touch on the housing, the contact portion is bent to electrically couple the sensing portion to a circuit board via two distinct electrical paths. In some implementations, an exterior surface of the housing includes a sealing area surrounding an aperture on the housing, and the acoustically porous cover is affixed to the sealing area via an adhesive. The adhesive covers the sealing area and permeates a thickness of the acoustically porous cover, thereby enabling formation of a controlled sound path to access the microphone via the aperture.

Compact home assistant having a controlled sound path

Various arrangements of electronic devices, such as assistant devices, are detailed herein. Such a device can include a housing and a microphone. A microphone aperture can be defined by the housing that directs sound from outside the housing to the microphone. A cover, which can be fabric, can be attached with the outside of the housing. An adhesive ring on the housing around the microphone aperture can be used to attach the cover to the housing.

Compact home assistant device

Techniques and apparatuses are described that implement touch sensors and electronic devices including touch sensors. In some implementations, the touch sensor includes a sensing portion and a contact portion extending from the sensing portion. While the sensing portion is configured to be placed in proximity to an interior surface of a housing of an electronic device to detect a touch on the housing, the contact portion is bent to electrically couple the sensing portion to a circuit board via two distinct electrical paths.

Compact home assistant having touch sensitive housing

According to some aspects, a de-powdering subsystem for an additive fabrication system is described. The de-powdering subsystem may comprise a bath subsystem. The bath subsystem may comprise a reservoir configured to contain a liquid and to accept objects to be de-powdered into the liquid, and an agitation facility configured to cause currents within the liquid. The agitator facility may be at least one of (i) a pump configured to circulate the liquid within the reservoir, (ii) a heating element configured to generate convection currents in the liquid, and (iii) a stirrer driven through a linkage to a motor. The bath subsystem may comprise at least one ultrasonic transducer configured to apply ultrasonic vibrations to the liquid within the reservoir.

Automated de-powdering via liquid immersion

A system for separating objects within a stacked powder print bed of nested objects comprises a build box configured to contain the powder print bed. The build box has a build box top and a build box floor. The system further includes an elongated aperture formed in a side wall of the build box, and a de-powdering subsystem configured to mechanically and electrically engage the build box. A separating blade associated with the de-powdering subsystem is configured to be inserted through the elongated aperture and into the powder print bed between a top-most print bed layer of the nested objects and a second print bed layer directly below and contiguous with the top-most layer, thereby forming an isolated powder print bed between the separating blade and the build box top. The unbound powder may be agitated by various techniques and subsequently removed from the objects.

Automated de-powdering with level based nesting

Growing community of inventors

Mountain View, CA, United States of America

Daniel David Sachs