Máquina de estereolitografía para la producción de un objeto tridimensional y método de estereolitografía aplicable a dicha máquina

摘要

The invention is a method for producing a three-dimensional object (11) in layers by means of a stereolithography machine (1) comprising: a container (2) containing a fluid substance (3) suited to solidify through exposure to predefined radiation (4a); means (4) suited to emit the predefined radiation (4a) and to solidify a layer of the fluid substance (3) adjacent to the bottom (2a) of the container (2); a modelling plate (5) suited to support the solidified layer (6) and associated with actuator means (7) suited to move it perpendicular to the bottom (2a) of the container (2); levelling means (8) arranged in contact with the fluid substance (3), the levelling means (8) comprising a paddle (9) developed according to a longitudinal direction and having an edge facing the container's bottom (2a) and arranged inside the container (2). The method comprises the following operations: selectively irradiating the layer of fluid substance (3) to obtain the solidified layer (6); extracting the solidified layer (6) from the fluid substance (3); redistributing the fluid substance (3) in the container (2) by moving the levelling means (8) so that they are passed between the modelling plate (5) and the container (2).