A method of layerwise building up an object, preferably a dental restoration or dental restoration part, from at least a first and a second light hardenable resin on a 3D printing device, the 3D printing device comprising a build platform on which the object can be built up, a light-transmissive carrier comprising a plurality of recesses for receiving light hardenable resin therein, and a light projector that is arranged for projecting a light-pattern through the carrier toward the build platform , the method comprising the steps of: (a) partially building up the object and thereby providing an object-in-process; (b) coating a first surface area of the carrier with a first blank layer of the first light hardenable resin; (c) positioning the first blank layer between the build platform and the light projector ; (d) advancing the build platform toward the carrier and thereby bringing the object-in-process into contact with the first blank layer; (e) irradiating the first blank layer with a light pattern to cause portions that are irradiated by the pattern to harden and thereby supplementing the object-in-process by a hardened layer; (f) retracting the build platform from the carrier and thereby separating the supplemented object-in-process from the carrier ; (g) coating a second surface area of the carrier with a second blank layer of the second light hardenable resin; (h) positioning the second blank layer between the build platform and the light projector ; (i) advancing the build platform toward the carrier and thereby bringing the object-in-process into contact with the second blank layer; (j) irradiating the second blank layer with a light pattern to cause portions that are irradiated by the pattern to harden and thereby supplementing the object-in-process by a further hardened layer; and (k) retracting the build platform from the carrier and thereby separating the supplemented object-in-process from the carrier . (a) partially building up the object and thereby providing an object-in-process; (b) coating a first surface area of the carrier with a first blank layer of the first light hardenable resin; (c) positioning the first blank layer between the build platform and the light projector ; (d) advancing the build platform toward the carrier and thereby bringing the object-in-process into contact with the first blank layer; (e) irradiating the first blank layer with a light pattern to cause portions that are irradiated by the pattern to harden and thereby supplementing the object-in-process by a hardened layer; (f) retracting the build platform from the carrier and thereby separating the supplemented object-in-process from the carrier ; (g) coating a second surface area of the carrier with a second blank layer of the second light hardenable resin; (h) positioning the second blank layer between the build platform and the light projector ; (i) advancing the build platform toward the carrier and thereby bringing the object-in-process into contact with the second blank layer; (j) irradiating the second blank layer with a light pattern to cause portions that are irradiated by the pattern to harden and thereby supplementing the object-in-process by a further hardened layer; and (k) retracting the build platform from the carrier and thereby separating the supplemented object-in-process from the carrier . <EOS>