Abstract: Apparatus for producing an object by sequentially forming thin layers of a construction material one on top of the other responsive to data defining the object, the apparatus comprising: a plurality of printing heads each having a surface formed with a plurality of output orifices and controllable to dispense the construction material through each orifice independently of the other orifices; a shuttle to which the printing heads are mounted; a support surface; and a controller adapted to control the shuttle to move back and forth over the support surface and as the shuttle moves to control the printing heads to dispense the construction material through each of their respective orifices responsive to the data to form a first layer on the support surface and thereafter, sequentially the other layers; wherein each printing head is dismountable from the shuttle and replaceable independently of the other printing heads.

Abstract: A system and methods for solid freeform fabrication of an object is disclosed. The system comprises a solid freeform fabrication apparatus having a plurality of dispensing heads, a building material supply apparatus configured to supply a plurality of building materials to the fabrication apparatus, and a control unit configured for controlling the fabrication apparatus and the supply apparatus based on an operation mode selected from a plurality of predetermined operation modes.

Abstract: A method and a system for three-dimensional printing of a three dimensional model is provided. The method includes dispensing a first interface material from a printing head, dispensing at least a second interface material from the printing headland combining the first and second interface material in pre-determined proportions to produce layers for forming the three-dimensional model. In one embodiment, the layers forming the construction layers of the model are formed from interface material having a harder modulus of elasticity from the layers forming the release layers, thereby allowing for the forming complex three-dimensional shapes.

Abstract: A method for creating raised and special printing effects using inkjet technology is provided. The method includes the steps of depositing a light curable photo-polymer material (18) on the area selected for the printing effects and curing the area. The amount of material to be deposited corresponds to the area selected for the printing effects and the height of the raised area relative to the medium (22) on which the photo-polymer material (18) is deposited.

Abstract: Compositions for use in the manufacture of 3-D objects including compositions for use as a support and/or release material in the manufacture of said 3-D objects are provided. The compositions for use in the manufacture of 3-D objects comprise at least one reactive component, at least one photo-initiator, at least one surface-active agent and at least one stabilizer. The compositions for use as a support and/or release material comprise at least one non-reactive and low-toxicity compound, at least one surface-active agent, at least one stabilizer and optionally at least one reactive component and at least one photo-initiator. Methods for manufacturing a 3-D object using the compositions of the present invention are also provided.