An additive manufacturing device comprising a movable raw material processing unit (10, 110, 210) for manufacturing a solid article, wherein the raw material processing unit (10, 110, 210) comprises a housing (19, 119, 219) configured as a transport device configured to be disengageable from the additive manufacturing device, wherein the housing (19, 119, 219) of the raw material processing unit (10, 110, 210) contains a raw material container unit (11, 111, 211), a build unit (15, 115, 215) and a raw material distribution unit (13, 113, 213) wherein the housing (19, 119, 219) is removable from the additive manufacturing device wherein the additive manufacturing device is configured for the manufacture of a solid article, wherein the raw material container unit (11, 111, 211) comprises a raw material container (14, 114, 124, 214, 224) and the build unit (15, 115, 215) comprises a recipient (16, 116, 216), wherein the recipient (16, 116, 216) is configured for the removal of the solid article after the completion of the manufacture of the solid article and the solid article can be separated from the spent raw material in the recipient (16, 116, 216), wherein the raw material distribution unit (13, 113, 213) is configured to transfer the spent raw material or a sieved raw material from the recipient (16, 116, 216) or from a raw material disposal unit or from a spent raw material container or a raw material storage unit to the raw material container (14, 114, 124, 214, 224), wherein the raw material container (14, 114, 124, 214, 224) contains the raw material (22, 24, 32) for the manufacture of the solid article, wherein the build unit (15, 115, 215) is configured to receive the raw material (22, 24, 32) from the raw material container (14, 114, 124, 214, 224), wherein, in operation, the raw material distribution unit (13, 113, 213) is configured to transport a portion of the raw material (22, 24, 32) from the raw material container (14, 114, 124, 214, 224) to the build unit (15, 115, 215), wherein the raw material container (14, 114, 124, 214, 224) comprises a raw material chamber (10, 120, 122, 220, 222) of variable volume and a raw material chamber bottom (21, 121, 123, 221, 223), wherein the raw material chamber bottom (21, 121, 123, 221, 223) can be connected to a raw material container drive unit (25, 125, 135, 225, 235) to move the raw material chamber bottom (21, 121, 123, 221, 223) to change the volume of the raw material chamber (20, 120, 122, 220, 222), wherein the build unit (15, 115, 215) comprises a recipient (16, 116, 216) of variable volume configured to receive the portion of the raw material (22, 24, 32) from the raw material container (14, 114, 124, 214, 224), wherein the build unit (15, 115, 215) comprises a recipient bottom (17, 117, 217) which can be connected to a build unit drive unit (18, 118, 218) to move the recipient bottom (17, 117, 217) to change the volume of the recipient (16, 116, 216) characterized in that the operative state, the respective raw material container (14, 114, 124, 214, 224) is configured for the addition of a layer of the raw material on top of the spent raw material or sieved raw material, thereby providing an alternating sequence of the raw material and the spent raw material or the sieved raw material to the raw material container (14, 114, 124, 214, 224) whereby the spent raw material or the sieved raw material is configured to be mixed with the raw material.