Abstract: Systems and methods of printing a colored 3D object, including: receiving an original 3D digital model of a colored 3D object comprising data relating to the geometry and to the color of the 3D object, receiving a printing resolution information relating to a 3D printing device connected to the processor, reducing the amount of data of the original 3D digital model in accordance with the printing resolution of the printing device, a geometric variation threshold and a color variation threshold, thereby generating an approximated 3D digital model of the colored 3D object, and printing the 3D object on the 3D printing device based on the approximated 3D digital model.

Abstract: Systems and methods for 3D printing a labeled object, including: receiving a 3D container mesh, receiving a 3D label mesh, wherein the 3D label mesh is an open mesh, ensuring correct positioning of the label mesh in relation to the container mesh, projecting the contour of the label mesh onto the container mesh to obtain a container mesh overlapping area, applying a local tessellation to the container mesh overlapping area according to the label contour, thereby generating a tessellated container mesh and/or applying a local tessellation to the label mesh according to the container mesh overlapping area, thereby generating a tessellated label mesh, replacing the tessellated container mesh overlapping area with the tessellated label mesh, thereby obtaining a labeled container mesh, and printing the labeled 3D object based on the labeled container mesh.

Abstract: A curable formulation that provides, when hardened, an elastomeric material that features improved stability and durability, made of at least one curable, mono-functional, hydrophobic material featuring Tg lower than 0° C.; at least one curable, mono-functional, hydrophobic material featuring Tg of from 0 to 100, or from 20 to 100, or from 20 to 80, ° C.; at least one curable, multi-functional, hydrophobic elastomeric material, and optionally additional curable and non-curable materials, is provided. An additive manufacturing of a three-dimensional object having in at least a portion thereof an elastomeric material, employing a curable formulation as described herein is also provided.

Abstract: A method for 3D color printing of an object includes slicing a 3D model of the object, adding color data to slices of the 3D model and printing the slices with a printing block including a plurality of channels. The plurality of channels include channels, each with different colored building material, and a channel with a clear building material. Printing includes dispensing at each target location of a travel of the printing block, building material from two channels of the plurality of channels. The two channels per target location are selected based on the color data.

Abstract: A method of forming an object on a fabric by three-dimensional printing, comprises: printing on the fabric an adhesion structure having a stack of layers in a configured pattern corresponding to a shape of a bottommost surface of the object, wherein for each layer of the stack the printing comprises dispensing and curing a first formulation along a scanning direction. The method also comprises printing the object onto the stack by dispensing and curing a building formulation in layers along the direction in configured patterns corresponding to shapes of slices of the object. Optionally, the curing comprises irradiating the layer by creating a pattern of curing radiation that scans the layer along the direction, wherein the pattern has a shape of a single stripe.

Abstract: A method of generating control data for a printer device to generate a phantom object of a source object, comprises: receiving a parameter map of the source object, the parameter map including input voxels, each input voxel being assigned a respective input parameter value; generating a parameter map of the phantom object based on the parameter map of the source object, the parameter map of the phantom object including output voxels, each output voxel being assigned a respective output parameter value; generating a printing map of the phantom object, the printing map of the phantom object including the output voxels, each output voxel being assigned a respective printing material to be applied by the printer device; and generating control data for the printer device to print the phantom object using the printing materials according to the printing map.

Abstract: A curable formulation that provides, when hardened, an elastomeric material featuring improved resilience (EDE) is provided. The curable formulation is composed of curable, mono-functional elastomeric material(s) and/or curable, multi-functional elastomeric material(s), optionally one or more of curable, mono-functional non-elastomeric material(s), curable multi-functional non-elastomeric material(s) and curable material(s) that comprise at least two hydrogen bond forming groups, and at least one polymeric silicone material as described in the specification and claims. Additive manufacturing 3D objects utilizing the curable formulation is also provided.

Abstract: A system for three-dimensional printing comprises: a three-dimensional printing apparatus for printing an object using a building material supplied from a container, and a computer. The computer is configured to receive working hours of personnel operating the apparatus, to calculate, based on three-dimensional printing data describing the object, a supply period during which the container is expected to be emptied, and to transmit to the apparatus a signal to initiate the printing at a delayed time selected to ensure that an end time of the supply period is within the working hours.

Abstract: Curable additive formulations usable in printing three-dimensional objects on a substrate such as a fabric, and methods and systems utilizing same are provided. The additive formulations comprise a combination of mono-functional and multi-functional materials that provide a suitable adhesive material or structure and/or a suitable coating to the printed objects.

Abstract: A formulation usable in additive manufacturing of a three-dimensional object is provided. The formulation comprises one or more monofunctional curable material(s); one or more hydrophilic multifunctional curable material(s); and one or more water-miscible non-curable material(s), such that a total amount of the curable materials is 20% or less, by weight, and a weight ratio of a total weight of the monofunctional curable material(s) and a total weight of the hydrophilic multifunctional curable material(s) ranges from 1:1 to 10:1. The formulation features, when hardened, properties of a weak and flowable gel. Additive manufacturing processes utilizing the formulation as a support material formulation are also provided.

Abstract: Modeling material formulations usable for printing three-dimensional objects on a substrate such as a fabric, and methods and systems utilizing same are provided. The modeling material formulation comprises a combination of mono-functional and multi-functional materials that provide a flexible hardened material.

Abstract: A waste collecting system comprises a bath for collecting liquid waste from the leveling device, a bath cover covering the bath, and a waste removal pipe sealingly passing through the cover and being configured to generate under-pressure in an interior of the bath so as to suck the liquid waste out of the bath. The waste collecting system is useful for collecting waste from a leveling device of a three-dimensional printing system.

Abstract: A method of additive manufacturing of a three-dimensional object includes sequentially dispensing and solidifying a plurality of layers. The plurality of layers may be formed with a plurality of different colored model materials, a flexible material arranged in a configured pattern to form a sacrificial structure at least partially encompassing the object, and a soft material. The soft material is arranged in a configured pattern to provide separation between the model material and the sacrificial structure. The plurality of different colored model materials is arranged in a configured pattern corresponding to the shape and color definition of the object.

Abstract: A method for 3D color printing of an object includes slicing a 3D model of the object, adding color data to slices of the 3D model and printing the slices with a printing block including a plurality of channels. The plurality of channels include channels, each with different colored building material, and a channel with a clear building material. Printing includes dispensing at each target location of a travel of the printing block, building material from two channels of the plurality of channels. The two channels per target location are selected based on the color data.

Abstract: A system for additive manufacturing comprises an array of nozzles for dispensing a building material on a receiving surface; a curing system having an irradiation source emitting a beam of curing radiation, and a beam manipulator for manipulating an angular width of the beam on the building material. A computerized controller controls the array of nozzles to dispense the building material formulation to form a layer in a configured pattern corresponding to a slice of a three-dimensional object, and to control the beam manipulator to select an angular width of the beam based on a three-dimensional shape of a stack of previously formed layers.

Abstract: Modeling material formulations usable in additive manufacturing of a denture structure, and additive manufacturing of denture structures employing same are provided. The modeling material formulations and the additive manufacturing parameters provide denture structures that exhibit mechanical, physical and biocompatibility properties that meet the requirements of the acceptable standards.

Abstract: A method of forming an object on a fabric by three-dimensional printing, comprises: printing on the fabric an adhesion structure having a stack of layers in a configured pattern corresponding to a shape of a bottommost surface of the object, wherein for each layer of the stack the printing comprises dispensing and curing a first formulation along a scanning direction. The method also comprises printing the object onto the stack by dispensing and curing a building formulation in layers along the direction in configured patterns corresponding to shapes of slices of the object. Optionally, the curing comprises irradiating the layer by creating a pattern of curing radiation that scans the layer along the direction, wherein the pattern has a shape of a single stripe.

Abstract: A formulation usable in additive manufacturing of a three-dimensional object is provided. The formulation comprises one or more monofunctional curable material(s); one or more hydrophilic multifunctional curable material(s); and one or more water-miscible non-curable material(s), such that a total amount of the curable materials is 20% or less, by weight, and a weight ratio of a total weight of the monofunctional curable material(s) and a total weight of the hydrophilic multifunctional curable material(s) ranges from 1:1 to 10:1. The formulation features, when hardened, properties of a weak and flowable gel. Additive manufacturing processes utilizing the formulation as a support material formulation are also provided.

Abstract: A leveling system for a three-dimensional printing system, comprises a rotatable roller, a waste collecting bath, a blade for removing liquid waste from the roller into the bath, and a plurality of tubular structures. Each tubular structure has an inlet at a vicinity of a base of the bath and an outlet connectable to a pump system.

Abstract: Modeling material formulation systems usable in additive manufacturing, 3D inkjet printing in particular, of three-dimensional objects, are provided. The formulations comprise two or more curable materials, such that an average molecular weight of the curable materials in each formulation is no more than 500 grams/mol, such that each formulation features a viscosity of no more than 50 centipoises at a temperature of 35° C. Kits comprising the formulations or formulation systems and additive manufacturing processes utilizing same are also provided.