Abstract: A system for three-dimensional printing comprises an array of nozzles for dispensing building materials, a work tray (12/360) and a jig (402) configured for affixing a fabric (420) to the work tray. A computerized controller operates at least the array of nozzles to dispense a building material in a configured pattern corresponding to a shape of an object on the affixed fabric.

Abstract: A waste curing device to cure waste generated by an additive manufacturing system, the waste curing device comprising: a container for receiving the waste; a movable cover positioned above the container; one or more waste nozzles mounted on the moveable cover and configured to deliver waste into the container; a static cover positioned above the container and below the movable cover; one or more curing sources mounted on the static cover and configured to provide curing radiation to cure the waste in the container; wherein the movable cover is configured to move relative to the static cover to provide an open position for the waste nozzles to deliver waste into the container, and subsequently to a closed position, to shield the waste nozzles from curing radiation.

Abstract: A waste curing device to cure waste generated by an additive manufacturing system, the waste curing device comprising: a container for receiving the waste; a movable cover positioned above the container; one or more waste nozzles mounted on the moveable cover and configured to deliver waste into the container; a static cover positioned above the container and below the movable cover; one or more curing sources mounted on the static cover and configured to provide curing radiation to cure the waste in the container; wherein the movable cover is configured to move relative to the static cover to provide an open position for the waste nozzles to deliver waste into the container, and subsequently to a closed position, to shield the waste nozzles from curing radiation.

Abstract: A method for carrying out additive manufacture while regulating material consumption, comprises making a digital representation of at least part of an object for printing, the representation comprising a plurality of voxels, and then identifying voxels which are flexible in respect of being able to consist of any one of at least two available materials. A balanced material consumption policy is then used to choose between the available materials so as to ensure that as far as possible, different materials are evenly used and wastage is minimized. Finally the object is printed with the selected materials.

Abstract: A waste curing device to cure waste generated by an additive manufacturing system, the waste curing device comprising: a container for receiving the waste; a movable cover positioned above the container; one or more waste nozzles mounted on the moveable cover and configured to deliver waste into the container; a static cover positioned above the container and below the movable cover; one or more curing sources mounted on the static cover and configured to provide curing radiation to cure the waste in the container; wherein the movable cover is configured to move relative to the static cover to provide an open position for the waste nozzles to deliver waste into the container, and subsequently to a closed position, to shield the waste nozzles from curing radiation.

Abstract: A method for carrying out additive manufacture while regulating material consumption, comprises making a digital representation of at least part of an object for printing, the representation comprising a plurality of voxels, and then identifying voxels which are flexible in respect of being able to consist of any one of at least two available materials. A balanced material consumption policy is then used to choose between the available materials so as to ensure that as far as possible, different materials are evenly used and wastage is minimized. Finally the object is printed with the selected materials.

Abstract: A printing system for forming three-dimensional objects, layer by layer is provided. The system includes inkjet printing heads, each printing head adapted to dispense one of a modeling material, a support material or a reusable waste material that comprises one or more materials that were previously discharged from at least one of the inkjet printing heads; a modeling material container; a support material container; a reusable waste material container and a leveling unit that removes surplus material from previously deposited layers, the surplus material being provided to the reusable waste container via a tube. In embodiments, the method comprises dispensing the reusable material to form a separate waste block adjacent to the three-dimensional object.

Abstract: A method of 3D printing to achieve a desired surface quality on at least one surface of a 3D printed object comprising selecting a base surface having the desired surface quality; and printing the 3D printed object on the base surface, so that the desired surface quality is imparted to one surface of the 3D printed object during printing. The surface quality may be glassiness, roughness, smoothness and texture in general. Objects may thus be manufactured in which electronic components are integrated in or under a glass-like surface.

Abstract: Method of additive manufacturing of a three-dimensional object employing building material formulations that provide, upon exposure to a curing condition, liquid or liquid-like material, and three-dimensional objects obtainable thereby are provided. The methods are usable for fabricating objects featuring one or more hollow structures.

Abstract: A printing system for forming three-dimensional objects, layer by layer is provided. The system includes inkjet printing heads, each printing head adapted to dispense one of a modeling material, a support material or a reusable waste material that comprises one or more materials that were previously discharged from at least one of the inkjet printing heads; a modeling material container; a support material container; a reusable waste material container and a leveling unit that removes surplus material from previously deposited layers, the surplus material being provided to the reusable waste container via a tube. In embodiments, the method comprises dispensing the reusable material to form a separate waste block adjacent to the three-dimensional object.

Abstract: A printing system for forming three-dimensional objects, layer by layer is provided. The system includes inkjet printing heads, each printing head adapted to dispense one of a modeling material, a support material or a reusable waste material that comprises one or more materials that were previously discharged from at least one of the inkjet printing heads; a modeling material container; a support material container; a reusable waste material container and a leveling unit that removes surplus material from previously deposited layers, the surplus material being provided to the reusable waste container via a tube.

Abstract: A method for carrying out additive manufacture while regulating material consumption, comprises making a digital representation of at least part of an object for printing, the representation comprising a plurality of voxels, and then identifying voxels which are flexible in respect of being able to consist of any one of at least two available materials. A balanced material consumption policy is then used to choose between the available materials so as to ensure that as far as possible, different materials are evenly used and wastage is minimized. Finally the object is printed with the selected materials.

Abstract: A printing system for forming three-dimensional objects, layer by layer is provided. The system includes inkjet printing heads, each printing head adapted to dispense one of a modeling material, a support material or a reusable waste material that comprises one or more materials that were previously discharged from at least one of the inkjet printing heads; a modeling material container; a support material container; a reusable waste material container and a leveling unit that removes surplus material from previously deposited layers, the surplus material being provided to the reusable waste container via a tube.

Abstract: Embodiments of the present invention are directed to a system and method for reusing surplus material generated by an Additive Manufacturing system in the process of manufacturing a 3-dimensional (3D) object. Surplus material removed from deposited layers and purged material used for printing head maintenance are transferred to back to the printing system to be deposited within subsequent layers. The reusable material may be deposited within the boundaries of a cross section of the 3-dimensional object to become part of 3D object or outside the boundaries of a cross section of the 3-dimensional object as part of the support construction, which is removed from the finished product. According to embodiments of the invention, a portion of the waste material for disposal may be deposited and cured layer by layer to form a waste block, concurrently with printing the layers of the 3D dimensional object. The fully cured waste block may be then disposed of in a safe manner.

Abstract: Embodiments of the present invention are directed to a system and method for reusing surplus material generated by an Additive Manufacturing system in the process of manufacturing a 3-dimensional (3D) object. Surplus material removed from deposited layers and purged material used for printing head maintenance are transferred to back to the printing system to be deposited within subsequent layers. The reusable material may be deposited within the boundaries of a cross section of the 3-dimensional object to become part of 3D object or outside the boundaries of a cross section of the 3-dimensional object as part of the support construction, which is removed from the finished product. According to embodiments of the invention, a portion of the waste material for disposal may be deposited and cured layer by layer to form a waste block, concurrently with printing the layers of the 3D dimensional object. The fully cured waste block may be then disposed of in a safe manner.