A method for automating the layer-by-layer manufacturing of an object using a solid/solid additive manufacturing method, characterized in that it comprises the following steps: - digital decomposition of said object along one or more axes, and a thickness, into different strata (S, S1, S2, S3, S4, S5), by means of digital slicing, - optimized distribution into a set of said strata (S, S1, S2, S3, S4, S5), on a plate of raw material, - calculating the trajectories of the cutting and/or machining tool(s), - digital slicing of the strata (S, S1, S2, S3, S4, S5), then micro-milling of the front face of the strata (S, S1, S2, S3, S4, S5) of the set in finishing, - turning over the set, - wedging, marking and positioning the set, - micro-milling, in the set, of the back face of the strata (S, S1, S2, S3, S4, S5), in rough machining, - extracting a first stratum of the set, then moving in a so-called horizontal XY plane and angularly positioning said stratum, on a mounting and finishing zone, - depositing glue on said first stratum, - extracting a second stratum of the set, then moving along said XY plane, and angularly positioning said stratum, and depositing and holding on said first stratum, - micro-milling on the reverse side, after each of the operations of depositing a stratum (S, S1, S2, S3, S4, S5) on another after bonding, for the purpose of finishing, removing the excess of the joint resulting from the bonding, and rectifying the defects associated with the stacking, so as to readjust the dimensional parameters at each level, and correct defects along the so-called vertical axis Z orthogonal to the plane XY that are linked to the potential variations of thicknesses of the plates and of said joint, - reproducing the steps of bonding and extraction for each of the remaining strata to be assembled. - digital decomposition of said object along one or more axes, and a thickness, into different strata (S, S1, S2, S3, S4, S5), by means of digital slicing, - optimized distribution into a set of said strata (S, S1, S2, S3, S4, S5), on a plate of raw material, - calculating the trajectories of the cutting and/or machining tool(s), - digital slicing of the strata (S, S1, S2, S3, S4, S5), then micro-milling of the front face of the strata (S, S1, S2, S3, S4, S5) of the set in finishing, - turning over the set, - wedging, marking and positioning the set, - micro-milling, in the set, of the back face of the strata (S, S1, S2, S3, S4, S5), in rough machining, - extracting a first stratum of the set, then moving in a so-called horizontal XY plane and angularly positioning said stratum, on a mounting and finishing zone, - depositing glue on said first stratum, - extracting a second stratum of the set, then moving along said XY plane, and angularly positioning said stratum, and depositing and holding on said first stratum, - micro-milling on the reverse side, after each of the operations of depositing a stratum (S, S1, S2, S3, S4, S5) on another after bonding, for the purpose of finishing, removing the excess of the joint resulting from the bonding, and rectifying the defects associated with the stacking, so as to readjust the dimensional parameters at each level, and correct defects along the so-called vertical axis Z orthogonal to the plane XY that are linked to the potential variations of thicknesses of the plates and of said joint, - reproducing the steps of bonding and extraction for each of the remaining strata to be assembled.