Abstract: An additive manufacturing system for printing three-dimensional parts, the system comprising a heatable chamber with a port, a print foundation, a print head configured to print a three-dimensional part onto the print foundation in a layer-by-layer manner along a printing axis, and a drive mechanism configured to index the print foundation along the printing axis such that, while the print head prints the three-dimensional part, the print foundation and at least a portion of the three-dimensional part pass through the port and out of the heated chamber.

Abstract: A liquefier assembly for use in an extrusion-based additive manufacturing system, the liquefier assembly comprising a downstream portion having a first average inner cross-sectional area, and an upstream having a second average inner cross-sectional area that is less than the first inner cross-sectional area, the upstream portion defining a shoulder configured to restrict movement of a melt meniscus of a consumable material.

Abstract: A print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage. The print heads each include a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.

Abstract: A payout tube for enabling payout of a consumable filament from a consumable assembly that is configured for use with an additive manufacturing system, the payout tube comprising a tip end having an inlet opening, a base end having an outlet opening, and a tube body having an average effective outer diameter that is substantially greater than an effective inner diameter of the inlet opening.

Abstract: A print head for use in a fused deposition modeling system, the print head includes a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.

Abstract: A print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage.

Abstract: A print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage.

Abstract: A print head assembly that includes a receptacle supported from a carriage frame and configured to receive a print head, and a toggle mechanism configured to move the receptacle relative to the carriage frame.

Abstract: A print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage. The print heads each include a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.

Abstract: A method of using a print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage.

Abstract: A print head for use in a fused deposition modeling system, the print head includes a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.

Abstract: A liquefier assembly for use in an extrusion-based additive manufacturing system, the liquefier assembly comprising a downstream portion having a first average inner cross-sectional area, and an upstream having a second average inner cross-sectional area that is less than the first inner cross-sectional area, the upstream portion defining a shoulder configured to restrict movement of a melt meniscus of a consumable material.

Abstract: A method for building a three-dimensional model with an extrusion-based additive manufacturing system having an extrusion head, the method comprising depositing a consumable material from a liquefier assembly at an extrusion rate to substantially normalize a meniscus height within the liquefier assembly.

Abstract: Systems and methods for treating grain stored in a grain pile with ozone are effective for treating grain for toxins, insects, mold, and/or odor. A method according to embodiments of the invention involves monitoring at least one of temperature and odor at a plurality of aeration outlet locations spaced around the grain pile. When an abnormal temperature variance or odor is detected at one or more of the aeration outlet locations, a determination is made as to a problem location within the grain pile where a treatment of ozone should be applied, and a further determination is made as to how best to apply ozone to the problem location. Ozone is then applied to the problem location within the grain pile to minimize nascent problems in the grain pile. The ozone treatment may reduce molds and toxins.

Abstract: Methods and systems for treatment of grain for toxins and/or odor utilize a storage container having a grain storage space and an aeration floor that allows air to flow through the aeration floor into the grain storage space. Ozone (mixed with air) is supplied to the grain through the aeration floor under positive pressure, whereby ozone is forced through the aeration floor into a lower portion of the grain storage space. After an initial treatment time, the initial treatment time allowing for the ozone to reduce toxins and/or odor in a lowermost portion of the initial quantity of grain an effective or desired amount, a lowermost portion or a lower treated portion of the grain in the grain storage space is removed, and new grain is added on top of the grain in the grain storage space, all while continuing to supply ozone through the aeration floor under positive pressure.

Abstract: Methods and systems for treatment of grain in a storage container using ozone may be used for treating grain for toxins, insects, mold, and/or odor. Downdraft methods for applying high concentrations of ozone to grain in a storage container treat grain without generating ozone-related objectionable odors or with generation of only minimal ozone-related objectionable odors. A method for downdraft ozone treatment of grain with minimal generation of ozone-related objectionable odors involves providing a negative air pressure at a bottom of a volume of grain in a storage container. A high ozone concentration is generated in air above an upper surface of the volume of grain. The ozone is drawn down into the volume of grain using the negative air pressure for a treatment time sufficient to effectively treat the grain without causing significant ozone-related commercially-objectionable foreign odors in the grain.

Abstract: Systems and methods provide a particle array for a wagering game that may be used to render particles that form an image pattern. The image pattern may be part of a simulated dot matrix marquee. The simulated dot matrix marquee may be associated with a graphical element of a wagering game. The marquee is positioned relative to the graphical element and maintains the same orientation as the graphical element.

Abstract: An adaptive computerized system of assessing the taxability of goods or services sold at retail or wholesale. The system has the capability to conduct an analysis of all products and/or services sold by a retailer or wholesaler either offline or online and provide the seller with the ability to monitor the tax status, including tax rates, of any goods or services sold by the seller at the point of sale or online in any number of taxing jurisdictions. The system includes a master database which links uniform commodities code technology such as UPC to tax assessment information for goods and/or services sales transactions made by any number of merchants in potentially unlimited taxing jurisdictions. The system also automatically generates tax collection and remittance reports and submit such report and the tax payment to the appropriate taxing jurisdictions.