Hewlett-packard Development Company, L.p.

Scott White

Jan Morovic

Peter Morovic

Jun Zeng

Jordi Sanroma Garrit

Wei T Huang

Helen Balinsky

Alejandro Manuel De Pena

Sergio Puigardeu Aramendia

Yan Zhao

Juan Manuel Garcia Reyero Vinas

Sebastia Cortes I Herms

Ana Patricia Del Angel

Carmen Blasco

Robert B Taylor

Wei Huang

Certain examples described herein relate to a removable unit for a three dimensional printing system. The removable unit comprises at least one compartment to store build material for a three-dimensional print job, a coupling to engage with a printer device of the three-dimensional printing system, and a memory. The memory is configured to store instructions for the three-dimensional print job for the printer device, and the instructions are readable from the memory by the printer device when the removable unit is engaged with the printer device.

Three-dimensional printing system

According to an example, a computing apparatus may include a processing device and a machine readable storage medium on which is stored instructions that when executed by the processing device, cause the processing device to access, from a sensing device, information pertaining to formation of a part of a 3D object in a layer of build materials upon which fusing agent droplets have been or are to be selectively deposited. The instructions may also cause the processing device to predict, based upon the accessed information, a quality of the part and output an indication of the predicted quality of the part.

Predicting quality of a 3D object part

In an example, a method includes acquiring, at a processor, object generation source data representing a three-dimensional object to be generated in additive manufacturing. A dataset which is representative of an aspect of the three-dimensional object may be determined from the object generation source data. Digital security may be applied to the object generation source data and the dataset. The digital security applied to the object generation source data may be different from that which is applied to the dataset.

Datasets representing aspects of 3D object

A computer program product for generating data for a three-dimensional (3D) printable object includes a computer readable storage medium. The computer readable storage medium includes computer usable program code embodied therewith. The computer usable program code, when executed by a processing device converts mesh data into a volumetric voxel data set. The voxel data set is organized as an N-ary tree defining at least a portion of the 3D printable object. The computer usable program code converts the N-ary tree of the voxel data set into print instructions defining a truss structure, and prints the 3D object including the truss structure.

Generating data for a three-dimensional (3D) printable object, including a truss structure

According to an example, an arrangement of parts to be printed in a build envelope of a three dimensional (3D) printer may be determined through identification of a plurality of parts to be printed and generation of a respective virtual bounding box for each of the plurality of parts. In one example, a determination may be made that a total volume occupied by the generated virtual bounding boxes falls below a predetermined threshold of the build envelope volume and an arrangement of the virtual bounding boxes inside the build envelope that results in a total height of the virtual bounding boxes being minimized may be determined, to enhance efficiency in printing of the plurality of parts by the 3D printer.

Parts arrangement determination for a 3D printer build envelope

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Sant Cugat del Valles, Spain

Scott White