Thermwood Corporation

Brian Scott Smiddy

Kenneth J Susnjara

Scott G Vaal

John Fuquay

Robert Gaesser

Jonathan I Fuquay

Nicolas C Vote

Jonathan L Fuquay

Joshua A Lough

An additive manufacturing machine includes a first segment that is movable while the additive manufacturing machine deposits material, a second segment being configured to move relative to the first segment, and an extruder having a screw disposed within a barrel. The machine also includes a pump having an inlet and an outlet, a nozzle physically coupled to the second segment and configurable to: (i) translate along a first axis, along a second axis perpendicular to the first axis, and along a third axis and (ii) dispense the material, and a controller configured to control a speed of the screw of the extruder and a speed of the pump based on increases or decreases in movement of the nozzle along at least two axes of the first axis, the second axis, and the third axis, in operation during deposition of the material in an arc or corner.

Methods and apparatus for processing and dispensing material during additive manufacturing

Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing system may include an extruder, the extruder having an opening dimensioned to receive a material. The apparatus may also include an extruder output in fluid communication with the extruder, wherein the extruder output extends away from the extruder along a longitudinal axis. One or more heaters positioned along at least a portion of the extruder output may also be included, and, as the material passes through the extruder output, the one or more heaters may at least partially melt the material. The system may also include a gear pump in fluid communication with the extruder output for receiving the at least partially melted material, and a nozzle in fluid communication with the gear pump for depositing the at least partially melted material.

Apparatus and method for printing large thermoplastic parts during additive manufacturing

An additive manufacturing apparatus includes a first vertically-extending support leg, a second vertically-extending support leg, and a gantry supported on the first and second support legs. The additive manufacturing apparatus also includes a work table movably supported beneath the gantry, a print head supported on the gantry, and a trim head supported on the gantry with the print head.

Near net shape additive manufacturing apparatus

Near net shape additive manufacturing system

A system for additive manufacturing includes a nozzle configured to translate along a first axis, a second axis perpendicular to the first axis, and a third axis orthogonal to the first and second axes, wherein the nozzle is operably coupled to: an extruder having an outlet and including a screw disposed within a barrel, and a pump having an inlet and an outlet. The inlet is coupled to the extruder, and the outlet is in fluid communication with the nozzle. The system also includes a controller configured to adjust a speed of the pump with respect to a speed of the screw to apply a target pressure at the outlet of the extruder.

An additive manufacturing apparatus an extruder configured to receive material, a work surface extending so as to define a plane for receiving one or more layers of the material, an applicator assembly secured at a downstream portion of the additive manufacturing apparatus, a nozzle connected to the applicator assembly, the nozzle being configured to receive the material from the extruder and deposit the material on the work surface, and an actuator configured to displace the work surface in a movement direction, wherein the movement direction forms an acute angle with the plane.

Apparatus and method for depositing material during additive manufacturing

An additive manufacturing apparatus includes an extruder and a gear pump in fluid communication with extruder. The additive manufacturing apparatus also includes a nozzle in fluid communication with the gear pump. The extruder is connected to a guide member such that at least a portion of the extruder is configured to expand and move along the guide member according to a thermal expansion of the extruder.

Apparatus and method for thermal compensation during additive manufacturing

An additive manufacturing system may include a carrier, a set of rails coupled to the carrier, and a transition housing movably attached to the set of rails. The additive manufacturing system may include an extruder having an extruder barrel coupled to the transition housing, and a melt pump fixedly attached to the carrier. The melt pump may be in fluid communication with the extruder barrel. Additionally, the additive manufacturing system may include a nozzle in fluid communication with the melt pump, and a roller rotatable about the nozzle.

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Newburgh, IN, United States of America

Brian Scott Smiddy