Abstract: Additive manufacturing apparatus for providing a three dimensional object, and method for additive manufacturing of a three dimensional object (5). An exposure unit (11) is arranged to cure a layer of slurry onto an object (5) being formed, and a substrate (2) is arranged to receive a predetermined amount of slurry (4) and to position the predetermined amount of slurry (4) to an exposure position associated with the exposure unit (11). The substrate (2) comprises a slurry repellant layer (3) on a surface of the substrate (2). An object holder is provided for holding the object (5) being formed, and the object holder is arranged to press the object (5) being formed towards the substrate (2) into the predetermined amount of slurry (4) until a desired thickness of the layer for a next additive manufacturing step is reached.