Method and machine for producing three-dimensional objects by means of successive layer deposition

Method for producing three-dimensional objects by forming a large number of successive parallel layers in a first dimension and each consisting of two heat-fusible modelling materials, the method using the two following main steps:

• a first step consisting of the timed supply of a first modelling material to at least a first jet (12) positioned on a first fixed working station, and of moving the jet with respect to the supporting surface along second and third directions perpendicular to the first direction and over a determined pathway, to deposit drops of material on the supporting surface;
• and
• a second step consisting of conducting the same operation with a second jet positioned on a second fixed work station and supplied with a second material over a determined pathway,
• this cycle being renewed a sufficient number of times, with pathways determined in relation to the object, in order to construct the object.
• characterized in that the number of fixed work stations is 2.N, the supporting surface consists of 2.N platforms (11) on each of which the process is implemented, each of the two 2.N platforms (11) is alternately moved to lie under at least one of the N first jets (12) to conduct the first step, then under at least one of the N second jets (12) to conduct the second step, in order to deposit simultaneously 2.N deposits of material on the 2.N platforms (11).