There is provided a 3D printing build material container (31) comprising a reinforcement structure (34), a collapsible reservoir (33) to hold build material, a build material outlet structure (313), at least one first inlet structure (314, 316), and a second inlet structure (315). The reinforcement structure encloses an airtight space and the reservoir is disposed within the reinforcement structure. The build material outlet (313) structure is to allow build material to exit the reservoir. The at least one first inlet structure (314, 316) is to allow recycled build material to enter the reservoir and to selectively allow a gas to enter the reservoir. The second inlet structure (315) is to selectively allow a gas to enter a space between the reservoir and the reinforcement structure.

An additive-manufacturing build-material container comprises a reservoir to hold build material, a build-material outlet structure to allow build material to exit the reservoir through an outlet opening in a top portion of the reservoir, a longitudinal collection unit (313a) to collect build material from the bottom and guide the build material to the outlet opening at the top, and bottom-venting structure to admit vent gas into a bottom portion of the reservoir. The bottom-venting structure may include a vent tube to admit venting gas into the bottom portion of the reservoir. A concentric collection tube structure may be employed including the longitudinal collection tube nested within a vent tube (333A, 354A). The concentric collection tube structure may be mounted along the central axis of the reservoir.

An additive-manufacturing build-material container comprises a reservoir to hold build material, a build-material outlet structure to allow build material to exit the reservoir through an outlet opening in a top portion of the reservoir, a longitudinal collection unit (313a) to collect build material from the bottom and guide the build material to the outlet opening at the top, and bottom-venting structure to admit vent gas into a bottom portion of the reservoir. The bottom-venting structure may include a vent tube to admit venting gas into the bottom portion of the reservoir. A concentric collection tube structure may be employed including the longitudinal collection tube nested within a vent tube (333A, 354A). The concentric collection tube structure may be mounted along the central axis of the reservoir.

A tubular molded body that can reduce restrictions on attachment to another member to be easily attached to another member. The tubular molded body 10 includes a tube main body 11 formed in a tubular shape and an attachment flange 100 formed in a flange shape to project from the tube main body 11. The attachment flange 100 includes a thin-walled hinge 130 and is rotatable by the hinge.

A tubular molded body that can reduce restrictions on attachment to another member to be easily attached to another member. The tubular molded body 10 includes a tube main body 11 formed in a tubular shape and an attachment flange 100 formed in a flange shape to project from the tube main body 11. The attachment flange 100 includes a thin-walled hinge 130 and is rotatable by the hinge.

A three dimensional printing apparatus (100; 200) is disclosed. The 3D printing apparatus comprises a primary and a secondary set of material dispensing units (1; 10) which each have a nozzle (3) for depositing particulate material (5; 220a, 220b; 224; 226) on a build surface (7), where the nozzle defines a through passage (9) for the material. The through passage has an inlet end (11) for receiving the material and an outlet end (15) for dispensing the material. A valve (21) is provided at least one of at, within or in fluid communication with the through passage for controlling flow of the material via the through passage, the valve being operable between open and closed positions. Flow of said material into the through passage is blocked when in the closed position and, when in the open position, flow of the material into the through passage is allowed. The 3D printing apparatus also comprises an enclosure (137) for containing the material dispensed by the dispensing units and one or more heating elements (210, 212) for heating the material contained in the enclosure to a first predetermined temperature. A method of forming a three dimensional object (31) is also disclosed.

The invention relates to a method and device for producing 3D moulded parts by means of a layer construction technique wherein a recoater is used which can coat in both directions of movement.

The invention relates to a method and device for producing 3D moulded parts by means of a layer construction technique wherein a recoater is used which can coat in both directions of movement.

A feedstock delivery system for injection molding includes a vessel unit that includes a vessel with an internal volume and an inlet for receipt of a feedstock. First and second dispensing units are alternatively connectable to the vessel unit and each include first and second ends, first and second valves, and a buffer chamber. The first end is connectable to the dispensing unit such that the buffer chamber is in communication with the internal volume of the vessel. The second end is connectable to an injection mold and defines an outlet of the feedstock delivery system. The outlet is in communication with the buffer chamber, and the buffer chamber is positioned between the first and second valves. The buffer chamber of the first dispensing unit defines a first chamber volume, and the buffer chamber of the second dispensing unit defines a second chamber volume greater than the first chamber volume.

Device for dispensing a food item into a hot fluid comprises a bowl having a permanent base and a movable plate positioned about the permanent base. A bottom of the bowl defines an opening for receiving a shaft extending therethrough. The shaft is coupled to the movable plate. A shank is selectively engaged with the bowl, the shank having a handle at a proximal end thereof. A lever is pivotably attached to the shank. The pivotal attachment is spaced apart from the bowl. The lever is detachably coupled to the shaft to impart translation of the movable plate. During operation, the lever is manipulated from a first position to a second position to push the shaft to move the movable plate to thereby eject the food item out of the bowl and into a hot fluid.