A more efficient method for producing three-dimensional objects by means of a rapid prototyping process

Method for producing a three-dimensional object that is generated layer-by-layer, by one layer each being produced as a projection surface of a liquid light-curing plastic material and being polymerised in an illuminated field, at least in part, by light of a light source, that the method comprising:

• a) generating a layer of the liquid light-curing plastic material on a building platform or on a polymerised layer by guiding a stripping device, which is coupleable to a light source, in a bath of the liquid light-curing plastic material ahead of the illuminated field and/or ahead of the light source, and
• i) obtaining a layer to be polymerised as projection surface;
• and ii) polymerizing the layer to be polymerised generated in i) as projection surface of the liquid light-curing plastic material using an illuminated field by means of light of the light source in step a);
• and, optionally,
• b) i) in the region of a reversal point of the pathway of the stripping device or of the light source, coupling the stripping device is appropriately coupled to the light source such that the light source again guides the stripping device ahead of itself;
• and, optionally,
• ii) in step b), lowering the building platform by one layer thickness and, optionally, generating a layer of the liquid light-curing plastic material above the previously polymerised layer;
• and, optionally,
• c) repeating steps a) and b) are repeated at least one to multiple times.