Patent ID: 11904548
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A system for varying a composition of build material used for a three dimensional (3D) part formed by a 3D printer, comprising:
a plurality of vessels each of which is for a build material of a plurality of build materials, wherein each vessel comprises a feeder coupled to a conveying system, and wherein the plurality of build materials includes a first build material and a second build material;
the conveying system to convey, in a conduit, the plurality of build materials from the plurality of vessels to a dispensing vessel and blend the plurality of build materials within the conduit during conveyance to the dispensing vessel;
the dispensing vessel containing an upper section, a lower section, and a building material sensor, the upper section positioned above the lower section and the building material sensor within the dispensing vessel, the upper section coupled to a separator that is coupled to the conveying system, the lower section coupled to another feeder for emptying build material from the dispensing vessel to a build platform; and
a controller configured to adjust a composition of the build material by adjusting an amount of material added from each of the plurality of vessels by controlling the feeder on each of the plurality of vessels.