Abstract: A build material management system for an additive manufacturing system is described in which a recovered build material tank (208) and a mixing tank (212) are provided. The recovered build material tank (208) comprises an outlet and a first build material filter (218b) for separating a gas flow from a build material flow. The mixing tank (212) comprises a second build material filter (218c). The mixing tank (212) is connected to the recovered build material tank (208) via a RBMT-to-mixer conduit (286). A controller (295) is provided to couple the second build material filter (218c) to a reduced pressure interface to transport build material from the outlet of the recovered build material tank into the mixing tank (212) via the second build material filter (218b). The controller (295) controls coupling of the first build material filter (218b) to the reduced pressure interface to transport build material from a build material source into the recovered build material tank (208).

Abstract: Apparatuses and methods for dried blood spot (DBS) sample collection are disclosed. A dried blood spot sampling device is configured to deliver blood through a passage to an absorbent disk in the device and control an amount of blood saturating the absorbent disk. The sampling device may include a manually actuatable component adjustable between a first position, in which an outlet of the passage is not in physical contact with the absorbent disk, and a second position, in which the outlet of the passage is in physical contact with the absorbent disk.

Abstract: In an example implementation, a method of extracting three-dimensional (3D) objects includes forming on a vibratory extraction platform, a build cake comprising a fused 3D object encased within build material and vibrating the extraction platform to break apart the build material and sift it through openings in the extraction platform.

Abstract: Disclosed herein is an apparatus and method for a distributed memory object system.

Abstract: A three dimensional (3D) printing system includes a print engine, a first powder handling module, a sieve, a second powder handling module, and a controller. The controller operates the print engine to fabricate 3D articles of manufacture. The controller operates the first powder handling module to transfer excess powder from the print engine to the first powder handling module and to receive new powder. The first powder handling module dispenses powder to the sieve. The controller operates the second handling module to transfer powder from the sieve to the second powder handling module. The second powder handling module provides powder to the print engine.

Abstract: A three dimensional printing system includes a powder delivery system and a controller. The powder delivery system includes a cartridge, a powder transfer assembly, a vacuum source, and source of inert gas. The cartridge includes a lower portion defining a lower cavity containing powder and an upper portion. The powder transfer assembly includes a cowling and a loader suction tube that extends through the cowling. The controller is configured to: (1) lower the cowling into sealing engagement with the upper portion of the cartridge whereby an upper cavity is defined between the cowling and the upper portion of the cartridge, (2) operate the source of inert gas to positively pressurize the upper cavity, and (3) lower the loader suction tube into the powder while operating the vacuum source to extract the powder.

Abstract: Disclosed herein is an apparatus and method for a distributed memory object system.

Abstract: Systems and methods are provided for implementing a memory subsystem to augment physical memory of a computing system. For example, a system comprises a memory subsystem, and a computing system coupled to the memory subsystem. The computing system comprises a processor, a first memory module, and a second memory module. The first memory module comprises random access memory which is utilized by the processor to store data associated with an application executing on the computing system. The second memory module comprises control logic circuitry that is configured to control access to the memory subsystem on behalf of the processor to store and retrieve data associated with the application executing on the computing system.

Abstract: A build material management system for an additive manufacturing system is described in which a recovered build material tank (208) and a mixing tank (212) are provided. The recovered build material tank (208) comprises an outlet and a first build material filter (218b) for separating a gas flow from a build material flow. The mixing tank (212) comprises a second build material filter (218c). The mixing tank (212) is connected to the recovered build material tank (208) via a RBMT-to-mixer conduit (286). A controller (295) is provided to couple the second build material filter (218c) to a reduced pressure interface to transport build material from the outlet of the recovered build material tank into the mixing tank (212) via the second build material filter (218b). The controller (295) controls coupling of the first build material filter (218b) to the reduced pressure interface to transport build material from a build material source into the recovered build material tank (208).

Abstract: In an example implementation, a method of extracting three-dimensional (3D) objects includes forming on a vibratory extraction platform, a build cake comprising a fused 3D object encased within build material and vibrating the extraction platform to break apart the build material and sift it through openings in the extraction platform.

Abstract: A three dimensional printing system includes a powder delivery system and a controller. The powder delivery system includes a cartridge, a powder transfer assembly, a vacuum source, and source of inert gas. The cartridge includes a lower portion defining a lower cavity containing powder and an upper portion. The powder transfer assembly includes a cowling and a loader suction tube that extends through the cowling. The controller is configured to: (1) lower the cowling into sealing engagement with the upper portion of the cartridge whereby an upper cavity is defined between the cowling and the upper portion of the cartridge, (2) operate the source of inert gas to positively pressurize the upper cavity, and (3) lower the loader suction tube into the powder while operating the vacuum source to extract the powder.

Abstract: A building platform substrate for 3D printing in a Fused Filament Fabrication (FFF) 3D printer is disclosed. The platform substrate includes a paper layer that is re-pulpable in water, a water-soluble top coat layer on one side of the paper layer, a water-soluble adhesive layer on an other side of the paper layer, and a lay flat release liner on an exposed surface of the adhesive layer. A 3D printer having a removable Z-axis platen for accepting the building platform substrate and a method of manufacturing the platform substrate are also disclosed.

Abstract: A three dimensional (3D) printing system includes a print engine, a first powder handling module, a sieve, a second powder handling module, and a controller. The controller operates the print engine to fabricate 3D articles of manufacture. The controller operates the first powder handling module to transfer excess powder from the print engine to the first powder handling module and to receive new powder. The first powder handling module dispenses powder to the sieve. The controller operates the second handling module to transfer powder from the sieve to the second powder handling module. The second powder handling module provides powder to the print engine.

Abstract: A data preservation device includes a circuit board configured to be positioned within a memory module slot of a computing device and releasably engage a memory bus of the computing device. A non-volatile memory storage device is electrically coupled to the circuit board. A control circuit is electrically coupled to the circuit board and is configured to read a data portion from the computing device and write the data portion to the non-volatile memory storage device during the occurrence of a power failure event on the computing device. An independent power supply is configured to power the data preservation device during the power failure event.

Abstract: High availability is provided in a multi-array storage system at the logical storage unit level. One or more storage arrays export logical storage units (LUNs). Each storage array maps the LUNs to physical groups of disks or disk partitions within the array. A controller coupled to the storage arrays arranges the LUNs from all the arrays so that one or more LUN(s) are designated as spare LUN(s). If a disk failure occurs within any disk in any array, the contents of one or more of the LUN(s) associated with the group of disks containing the failed disk are re-established on the spare LUN(s). If the physical groups of disks are RAID protected, then after affected LUNs are moved, the storage array containing the failed disk removes the failed disk from its group and re-establishes RAID protection across the remaining disks in the group.

Abstract: A data storage system includes a first storage processor including a first memory device; a second storage processor including a second memory device; and a third memory device coupled to the first storage processor and the second storage processor. The first and second storage processors are interconnected to enable mirroring of data between the first memory device and the second memory device. During a first mode of operation, data processed by the first storage processor and the second storage processor is mirrored between the first memory device and the second memory device and, during a second mode of operation, data processed by the first storage processor is mirrored from the first memory device to the third memory device.

Abstract: A drum printer includes a rotatable drum having an aperture formed in a drum surface, and a printhead. Fluid is spit from the printhead into the aperture.

Abstract: A printing apparatus includes a drum having a peripheral surface having passageways therein. A screen having apertures therein is placed over the peripheral surface of the drum.

Abstract: A support facility for installation of interprocessor unit cabling interconnecting the processor units of a multiple processor unit system in a first network, including a second system for directing the cabling interconnections of the first system and, in each processor unit of the first system, a device access controller connected through a second network to a second system, each device access controller including a memory for storing a unique identifier, and a network controller to interconnect to a network controller of at least one other processor unit. There is a selectably settable anchor bit indicator to indicate a processor unit selected as a first processor unit of the first network, a next connection indicator connected from the device access controller, and connected from the network controller, a transmit test indicator connected from the device access controller and a receive indicator connected from the device access controller.

Abstract: A test pattern for use with an optical sensor for an inkjet printer. The inventive pattern comprises a first plurality of vertical bars horizontally spaced and a second plurality of horizontal bars vertically spaced. The spacing between the bars is approximately equal to the width of the bars. In a particular implementation, the pattern is adapted for use with an inkjet printer having a plurality of pens. The first plurality of bars includes a first set of bars printed by each of the pens. The first plurality of bars includes a second set of bars printed by one of the pens moving at at least two different horizontal speeds. The second plurality of bars includes one column of vertically spaced bars for each of the pens. Each column of vertically spaced bars includes a first plurality of vertically spaced bars printed by a first pen. A respective column of vertically spaced bars includes a second plurality of vertically spaced bars printed by a respective one of the pens.