An additive manufacturing apparatus, comprising: a vat (210, 410, 610) that includes multiple chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) and at least one of the chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) is a resin chamber that is configured to receive a radiant-energy-curable resin; a build surface (26, 226, 426) defined by the resin chamber within the vat (210, 410, 610), wherein at least a portion of the build surface (26, 226, 426) is transparent; a stage positioned facing the vat (210, 410, 610) and the build surface (26, 226, 426) and the stage is configured to hold a stacked arrangement of one or more cured layers of the radiant-energy-curable resin; one or more actuators operable to change the relative positions of the vat (210, 410, 610) and the stage; and a radiant energy apparatus positioned adjacent to the vat (210, 410, 610) opposite to the stage, and operable to generate and project radiant energy on the radiant-energy-curable resin through the floor of the vat (210, 410, 610) in a predetermined pattern when the resin is in a build zone, the apparatus further comprising a load zone and an unload zone such that a chamber can move between the build zone, the load zone, and the unload zone and further comprising a moving mechanism for moving the vat (210, 410, 610), wherein the moving mechanism includes a turntable, wherein the vat (210, 410, 610) defines a receptacle and a divider that is positioned within the receptacle, wherein the divider defines the multiple chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) within the receptacle, characterised in that the divider is configured to move within the receptacle such that the defined chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) move relative to the stage. a vat (210, 410, 610) that includes multiple chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) and at least one of the chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) is a resin chamber that is configured to receive a radiant-energy-curable resin; a build surface (26, 226, 426) defined by the resin chamber within the vat (210, 410, 610), wherein at least a portion of the build surface (26, 226, 426) is transparent; a stage positioned facing the vat (210, 410, 610) and the build surface (26, 226, 426) and the stage is configured to hold a stacked arrangement of one or more cured layers of the radiant-energy-curable resin; one or more actuators operable to change the relative positions of the vat (210, 410, 610) and the stage; and a radiant energy apparatus positioned adjacent to the vat (210, 410, 610) opposite to the stage, and operable to generate and project radiant energy on the radiant-energy-curable resin through the floor of the vat (210, 410, 610) in a predetermined pattern when the resin is in a build zone, the apparatus further comprising a load zone and an unload zone such that a chamber can move between the build zone, the load zone, and the unload zone and further comprising a moving mechanism for moving the vat (210, 410, 610), wherein the moving mechanism includes a turntable, wherein the vat (210, 410, 610) defines a receptacle and a divider that is positioned within the receptacle, wherein the divider defines the multiple chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) within the receptacle, characterised in that the divider is configured to move within the receptacle such that the defined chambers (222, 224, 226, 228, 422, 622, 624, 626, 628) move relative to the stage.