Abstract: A movement system for achieving movement of at least a nozzle assembly in an additive manufacturing machine is provided. The movement system comprises a first tower and a belt assembly. The first tower is configured to move back and forth along a first axis. The belt assembly is configured to enable the back and forth movement of the first tower along the first axis. The belt assembly comprises a belt, a gear and at least two bearings. The belt interfaces with the gear and the two bearings, with one bearing on each side of the gear, such that the belt is sandwiched between the gear and the bearings. The belt is engaged to the first tower. Rotation of the gear results in movement of the belt, and thereby the first tower, along the first axis.

Abstract: A system is provided for rotating a structure to assume a folded position or an upright position. The structure enables movement of a print head of an additive manufacturing machine along a vertical axis. The system comprises a hub and a second member. The hub comprises a first member defining an arched surface and a plurality of notches. The second member is pressed against the first member by a tensioning member. The hub is operable to be rotated to assume the upright position or the folded position of the structure. Rotation of the hub results in at least a portion of the arched surface to slide against the second member, which is enabled by retraction of the second member. The second member is received by one of the plurality of notches to retain the structure in the folded position or the upright position.

Abstract: A system is provided for rotating a structure to assume a folded position or an upright position. The structure enables movement of a print head of an additive manufacturing machine along a vertical axis. The system comprises a hub and a second member. The hub comprises a first member defining an arched surface and a plurality of notches. The second member is pressed against the first member by a tensioning member. The hub is operable to be rotated to assume the upright position or the folded position of the structure. Rotation of the hub results in at least a portion of the arched surface to slide against the second member, which is enabled by retraction of the second member. The second member is received by one of the plurality of notches to retain the structure in the folded position or the upright position.

Abstract: A system for feeding filament to a nozzle in an additive manufacturing machine is provided. A filament extrusion assembly is configured to extrude the filament from a spool. A nozzle holder comprises a protruded portion. The nozzle holder defines a through hole which extends into the protruded portion. The through hole receives the filament extruded by the filament extrusion assembly. The protruded portion is located immediately below a point where the filament exits the filament extrusion assembly. A nozzle assembly comprises a cooling chamber which defines a through hole aligned with the through hole of the nozzle holder. The cooling chamber defines at least one groove coaxial with the through hole of the cooling chamber. The groove receives at least one sealing member wherein the groove is defined where the nozzle holder interfaces with the cooling chamber.

Abstract: An integrated cooling system for cooling filament of an additive manufacturing machine is provided. The integrated cooling system comprises a cooler and a delivery duct. The cooler is configured to circulate cool fluid. The delivery duct is connected to the cooler to receive cool air from the cooler. At least a part of the delivery duct defines an arch that circumferentially surrounds a nozzle assembly of the additive manufacturing machine. The delivery duct defines a plurality of vents for the cool air to exit the delivery duct. The vents are angled such that the cool air exiting the vents converge to an area on the print plate where the molten filament is getting deposited.

Abstract: A system for feeding filament to a nozzle in an additive manufacturing machine is provided. A filament extrusion assembly is configured to extrude the filament from a spool. A nozzle holder comprises a protruded portion. The nozzle holder defines a through hole which extends into the protruded portion. The through hole receives the filament extruded by the filament extrusion assembly. The protruded portion is located immediately below a point where the filament exits the filament extrusion assembly. A nozzle assembly comprises a cooling chamber which defines a through hole aligned with the through hole of the nozzle holder. The cooling chamber defines at least one groove coaxial with the through hole of the cooling chamber. The groove receives at least one sealing member wherein the groove is defined where the nozzle holder interfaces with the cooling chamber.

Abstract: A movement system for achieving movement of at least a nozzle assembly in an additive manufacturing machine is provided. The movement system comprises a first tower and a belt assembly. The first tower is configured to move back and forth along a first axis. The belt assembly is configured to enable the back and forth movement of the first tower along the first axis. The belt assembly comprises a belt, a gear and at least two bearings. The belt interfaces with the gear and the two bearings, with one bearing on each side of the gear, such that the belt is sandwiched between the gear and the bearings. The belt is engaged to the first tower. Rotation of the gear results in movement of the belt, and thereby the first tower, along the first axis.

Abstract: An integrated cooling system for cooling filament of an additive manufacturing machine is provided. The integrated cooling system comprises a cooler and a delivery duct. The cooler is configured to circulate cool fluid. The delivery duct is connected to the cooler to receive cool air from the cooler. At least a part of the delivery duct defines an arch that circumferentially surrounds a nozzle assembly of the additive manufacturing machine. The delivery duct defines a plurality of vents for the cool air to exit the delivery duct. The vents are angled such that the cool air exiting the vents converge to an area on the print plate where the molten filament is getting deposited.