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1. (WO2018182629) 3D OBJECT PART SECTION FORMATION

Pub. No.:    WO/2018/182629    International Application No.:    PCT/US2017/025074
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 31 01:59:59 CEST 2017
IPC: B22F 3/105
B33Y 10/00
B29C 64/00
B33Y 30/00
B33Y 80/00
Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventors: WOODLOCK, David C.
DOCKSTADER, Lee
Title: 3D OBJECT PART SECTION FORMATION
Abstract:
According to examples, an apparatus may include forming components and a controller to control the forming components to fuse build material particles located in a selected area of a layer of build material particles forming a part section of a 3D object, in which the selected area is within and borders a selected boundary. The controller may also wait for a period of time to allow the part section to shrink to form a shrunken part section and, following the period of time, fuse build material particles located in a certain area around the shrunken part section, in which the certain area occupies a preset distance originating around the selected boundary of the layer of build material particles and extending toward an interior of the part section, and the preset distance corresponds to an amount of shrinkage predicted to occur in the part section during the period of time.