公开(公告)号：US20210206104A1

公开(公告)日：2021-07-08

申请号：US16075703

申请日：2017-07-17

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Alexander LAWS ,  Tait A. REGNIER ,  Joshua CODER

IPC: B29C64/364 ,  B29C64/153 ,  B29C64/25 ,  B29C64/245

Abstract: According to one aspect, there is provided a build unit for a 3D printer. The build unit comprises a housing and a build platform movable with the housing, the housing and the platform forming a build chamber. An upper portion of the housing is to, during a print operation, maintain the contents of the upper portion of the build chamber within a first predetermined temperature range, whereas the lower portion of the housing is to allow cooling of the contents of a lower portion of the build chamber.

公开(公告)号：US20210197475A1

公开(公告)日：2021-07-01

申请号：US16075681

申请日：2017-07-06

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Robert Lawrence WINBURNE ,  Joshua SCHMALE ,  Tait A. REGNIER

IPC: B29C64/35 ,  B29C64/165 ,  B29C64/245 ,  B29C64/357 ,  B33Y30/00 ,  B33Y40/00

Abstract: In one example in accordance with the present disclosure, an additive manufacturing build unit is described. The additive manufacturing build unit includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material. A non-vibrating frame of the build unit supports the vibrating bed. The build unit also includes a bed-frame interface to: couple the vibrating bed to the non-vibrating bed frame, and isolate vibrations to the vibrating bed. A flexible seal of the build unit is disposed between the vibrating bed and non-vibrating frame. The flexible seal prevents build material from contaminating an additive manufacturing system in which the additive manufacturing build unit is disposed and allows relative motion between the vibrating bed and the non-vibrating frame.

公开(公告)号：US20210323232A1

公开(公告)日：2021-10-21

申请号：US16075625

申请日：2017-07-19

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Joshua SCHMALE ,  Robert Lawrence WINBURNE ,  Tait A. REGNIER ,  Michael DUDA ,  Justin M. ROMAN

IPC: B29C64/35 ,  B29C64/245 ,  B29C64/165 ,  B29C64/209 ,  B29C64/393 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: In one example in accordance with the present disclosure, an additive manufacturing platform is described. The additive manufacturing platform includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material and operates in at least two extraction modes during a build material extraction period. The additive manufacturing platform also includes a non-vibrating frame to support the vibrating bed.

公开(公告)号：US20210206094A1

公开(公告)日：2021-07-08

申请号：US16075684

申请日：2017-07-06

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Joshua SCHMALE ,  Robert Lawrence WINBURNE ,  Randall WEST ,  Tait A. REGNIER

IPC: B29C64/35 ,  B33Y30/00 ,  B33Y40/20 ,  B29C64/245

Abstract: A three-dimensional printing system may include a build platform, the build platform including at least one hole defined through the build platform, a diffuser plate placed below the at least one hole to maintain an amount of build material between a lower surface of the build platform and an upper surface of the diffuser plate, and a flow channel defined around the diffuser plate and sealing the diffuser plate from atmosphere.

公开(公告)号：US20210206071A1

公开(公告)日：2021-07-08

申请号：US16075597

申请日：2017-07-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Tait A. REGNIER ,  Mark GROENENBOOM ,  Robert Lawrence WINBURNE ,  Randall WEST ,  Joshua SCHMALE

IPC: B29C64/245 ,  B29C64/255

Abstract: A build unit may include a build chamber, at least two datum apertures defined in at least two opposite sides of the build unit, and at least two alignment posts that seat within the datum apertures to couple the lift system to the build chamber, and to align the lift system in a first coordinate direction relative to the build chamber.

公开(公告)号：US20210206069A1

公开(公告)日：2021-07-08

申请号：US16075476

申请日：2017-06-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Mark GROENENBOOM ,  Randall WEST ,  Tait A. REGNIER ,  Robert WINBURNE ,  Jeffrey G. BINGHAM

IPC: B29C64/245 ,  B29C64/232 ,  B33Y30/00 ,  B66F7/02

Abstract: In one example, a platform lift includes a rotationally stationary leadscrew to support a platform, a rotatable nut to drive the leadscrew up and down through a range of motion, a first spring to apply a continuous downward force to the leadscrew throughout the range of motion, and a second spring to apply a continuous upward force to the leadscrew throughout the range of motion.