| abstract |
A method of forming a 3D object, the method being carried out in the following steps: (a) providing a carrier and a building panel, the building panel comprising a semi-permeable member, the semipermeable member comprising a build surface, wherein the construction The surface and the carrier define a build region therebetween, and wherein the build surface is in fluid communication with a source of polymerization inhibitor by means of the semipermeable member; (b) filling the build region with a polymerizable liquid, the polymerizable liquid contacting The build surface, (c) illuminating the build area via the build panel to create a solid polymeric region within the build region while forming or maintaining a polymerizable liquid formed between the solid polymerized region and the build surface a liquid film release layer, wherein the polymerization of the liquid film is inhibited by the polymerization inhibitor; and (d) advancing the carrier to which the polymerization region is adhered away from the build surface of the build plate to be in the polymerization A subsequent build zone is established between the zone and the build surface while the latter build zone is filled with a polymerizable liquid as in step (b). The invention also describes an apparatus for carrying out such a method. |