Abstract:
A system and method for manufacturing a part in a mold having a mold cavity including a printhead for depositing a first material within the mold cavity, and an injection head for depositing a second material within the mold cavity. A part can be made in the mold cavity by the cooperative use of both injection molding and additive manufacturing steps.
Abstract:
A device comprising a tower covered by a shell, the tower having a base with a first axis of movement around a first joint, a first arm connected to the tower via a second joint along a second axis of movement, a second arm connected to the first arm at a proximal end of the second arm via a third joint defining a third axis of movement, the second arm having an end effector interface configured to hold a variety of end effectors usable for different applications, the end effectors being exchangeable allowing the device to perform digital fabrication and desktop manufacturing, an autolevelling function configured to sense a height of a work surface, and a training function allowing a user to teach either arm to perform or repeat specific actions and/or collaborate with the other arm to achieve a common assembly or fabrication task.
Abstract:
Disclosed is a method of making an article, the method comprising: melt extruding a plurality of layers comprising one or more polymer compositions in a preset pattern, wherein the extruded layers comprise one or more first layers comprising a first polymer composition A, and one or more second layers comprising a second polymer composition B having a chemical composition different from the first polymer composition A, having a glass transition temperature (Tg) that is 5-100 degrees C lower than polymer composition A, and which acts as a adhesion promotion layer between two layers comprising first polymer composition A; and fusing the plurality of layers to provide the article.
Abstract:
The present disclosure relates to a device and method for additive manufacturing, the device having an extrusion nozzle and a printing surface, wherein the extrusion nozzle is configured to deposit material onto a printing surface, and the printing surface is configured to rotate about a primary axis, the primary axis being normal to a centroid of the printing surface, the printing surface also being tiltable.
Abstract:
A method of building up a dental object includes steps of (i) determining the three-dimensional shape of the object; (ii) mixing at least a first and a second component to form a hardenable composition; (iii) depositing the hardenable composition through a nozzle; (iv) performing steps (ii) and (iii) in combination with moving the nozzle by computer control based on said data. The invention helps providing an object like a dental restoration at maximized geometric and optical quality.
Abstract:
An ink formulation for 3D printing comprises a triblock copolymer in a solvent, where the triblock copolymer includes end blocks comprising an aromatic or acrylate polymer and a midblock between the end blocks comprising an aliphatic polymer. The ink formulation exhibits a shear thinning threshold of about 0.02 rad/sec or less. A method of making a 3D printed radiofrequency (RF) device comprises extruding an ink formulation from a deposition nozzle moving relative to a substrate, where the ink formulation comprises a triblock copolymer in a solvent and the triblock copolymer includes end blocks comprising an aromatic or acrylate polymer and a midblock between the end blocks comprising an aliphatic polymer. One or more continuous filaments comprising the ink formulation are deposited in a predetermined pattern on the substrate, and the ink formulation is treated to remove or cure the solvent, thereby forming a printed RF device.
Abstract:
A method and apparatus is disclosed for additive manufacturing and three-dimensional printing, and specifically for extruding tubular objects. A print head extrudes a curable material into a tubular object, while simultaneously curing the tubular object and utilizing the interior of the cured portion of the tubular object for stabilizing and propelling the print head.
Abstract:
The invention relates to compositions and methods for solid freeform fabrication of medical devices, components and applications in which the composition includes a thermoplastic polyurethane which is particularly suited for such processing. The useful thermoplastic polyurethanes are derived from (a) an aromatic diisocyanate component, (b) a polyol component, and (c) a chain extender component where the molar ratio of (c) to (b) is at least 4.25.
Abstract:
Disclosed herein are methods for processing objects made using additive manufacturing methods, comprising placing the object made by an additive manufacturing process using at least one thermoplastic polymer in an enclosed chamber, generating a mist of a liquid in the enclosed chamber, and exposing the object to the mist of the liquid for a predetermined period of time.