Hewlett-Packard Development Company, L.p.

Gerard Mosquera

Pau Martin Vidal

Fernando Juan

Esteve Comas

Anna Torrent

Pablo Dominguez Pastor

Adrien Chiron

Elena Laso Plaza

Jose Manuel Grases

Cristian Ferris

Joaquim Brugue

Sergi Culubret

Jordi Gimenez

Pol Morral

Joan Mach

Albert Iglesias Millan

In example implementations, an apparatus includes a storage unit, an auger screw, a housing enclosing the auger screw and at least one heater coupled to the housing. The auger screw receives a build material from the storage unit and delivers the build material to a build platform via movement of the auger screw. The build material is heated by the at least one heater as the build material is being moved by the auger screw.

Heater for 3D printer auger screw

According to one example there is provided an apparatus for supplying build material to a three-dimensional printing system. The apparatus comprises a rotatable vane.

Supplying build material

In one example, an article for distributing powder includes a plate having holes therein through which a powder may pass from a first side of the plate to a second side of the plate opposite the first side and multiple ramps each intersecting the plate at one or multiple holes and sloping away from the first side of the plate in a first direction at an angle less than 90&#xb0;.

Distributing powder

Examples of recoater carriages in an additive manufacturing system are described. In one case, a recoater carriage assembly has an elongate powder build material spreader, such as a roller, to spread powder build material in use. The recoater carriage assembly has a recoater carriage to support the spreader. The spreader is to engage and to disengage from the recoater carriage by movement of the spreader non-concentrically to a longitudinal axis of the spreader.

Recoater carriage

In example implementations, an apparatus includes a storage unit, an auger screw, a housing enclosing the auger screw and at least one heater coupled to the housing. The augers screw receives a build material from the storage unit and delivers the build material to a build platform via movement of the auger screw. The build material is heated by the at least one heater as the build material is being moved by the auger screw.

Printing stations to receive build units are disclosed. The printing stations may comprise a first wall comprising two fixed receiving ports to engage with two fixed mounting elements of the build units, respectively, and a second wall comprising a third fixed receiving port to engage with a third fixed mounting element of the build units, and a calibration receiving port to be coupled to a fourth fixed mounting element when the build unit is inserted into the printing station.

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Sant Cugat del Valles, Spain

Gerard Mosquera