Abstract: In a method for solidifying a photopolymerizable, diffusely reflecting material by irradiation, wherein the material coats a transparent material confining element, such as a material support or a tank bottom, and the irradiation of a surface to be solidified is performed through the transparent material confining element into the material, a) the thickness of the material confining element and b) the coated surface and/or the construction field and/or the surface to be solidified of the material are adapted to one another such that the thickness of the material confining element is at least ¼, preferably at least ?, preferably at least ½, of the diameter of the coated surface, or the surface to be solidified, or the construction field, respectively.

Abstract: A method for the layered construction of a shaped body of highly viscous photopolymerizable material, includes forming layers of the shaped body one after the other and one on top of the other by each forming a material layer of predetermined thickness (a) of the highly viscous photopolymerizable material in a tank, lowering a construction platform, or the shaped body at least partially formed on the construction platform, into the material layer so as to cause a layer of the highly viscous photopolymerizable material to form between the construction platform or the shaped body and the tank bottom, curing such layer in a position-selective manner, in particular by irradiation through the tank bottom, to provide the desired shape of the shaped body layer, wherein the thickness (a) of the material layer is varied at least once during the layered construction of the shaped body.

Abstract: A method for the layered construction of a shaped body of highly viscous photopolymerizable material, where layers of said shaped body are formed one after the other and one on top of the other, includes forming a material layer of predetermined thickness (a) of the highly viscous photopolymerizable material in a tank, which has a bottom, and lowering the construction platform, or the shaped body at least partially formed on the construction platform, into the material layer so as to cause a layer of the highly viscous photopolymerizable material to form between the construction platform or shaped body and the tank bottom, which layer is cured in a position-selective manner, in particular by irradiation through the tank bottom, to provide the desired shape of the shaped body layer, in which at least one material layer includes a layer thickness variation in the lateral direction.

Abstract: In a method for solidifying a photopolymerizable, diffusely reflecting material by irradiation, wherein the material coats a transparent material confining element, such as a material support or a tank bottom, and the irradiation of a surface to be solidified is performed through the transparent material confining element into the material, a) the thickness of the material confining element and b) the coated surface and/or the construction field and/or the surface to be solidified of the material are adapted to one another such that the thickness of the material confining element is at least ¼, preferably at least ?, preferably at least ½, of the diameter of the coated surface, or the surface to be solidified, or the construction field, respectively.