METHOD AND DEVICE FOR BUILDING A SHAPED BODY BY STEREOLITHOGRAPHIC CURING OF BUILDING MATERIAL BY PHOTOPOLYMERIZATION

摘要

The present invention relates to a method for building a shaped body by stereolithographic hardening of building material by photopolymerization, in which building material is conveyed between a building platform and a transparent base plate (12) and is exposed in a location-selective manner through the base plate in order to expose it above the base plate ( 12) Harden building material within a predetermined contour, - the building platform is raised relative to the base plate (12) and building material is tracked, - the two steps are continued until the molding is built up by site-selectively hardened building material, characterized in that the building platform is on the front side of a in a cylinder (10) slidably guided piston (16), wherein the end face of the piston (16) facing the end surface of the cylinder is closed by the base plate (12), and further building material is tracked by the piston (16) from the Base plate (12) moved away and at the same time building material is conveyed through a feed line (14) which opens into the interior of the cylinder in order to fill the additional volume resulting from the movement of the piston (16) away from the base plate (12) with building material.