Abstract: A method for producing a solid object using a modeling apparatus includes depositing a build material with an extruder head (1) onto a build surface (2) on predefined areas. The build material quantity applied to the build surface is measured (4), preferably during the build material is deposited onto the build surface, or after each level of build material has been deposited on the build surface, or measuring a force applied to the build surface. Preferably, the build material quantity deposited onto the build surface (2) is compared with the build material projected to be deposited onto the build surface during deposition. Build material deposition is controlled (12) accordingly.

Abstract: An apparatus (1) for producing three-dimensional objects (2) from a deformable material (4) has the following features: a housing (3) that has a chamber (21) for receiving the deformable material (4); a feed device (5) for feeding the deformable material (4) into the chamber (21) of the housing (3); a first discharge opening (7) for discharging the deformable material (4) from the chamber (21) of the housing (3); a first closing device (8) for selectively closing and opening the first discharge opening (7), said device (8) having a cavity (22) connected via at least one connecting bore (23) to the chamber (21) of the housing (3); a second discharge opening (11) which has a smaller cross-section than the first discharge opening (7), for discharging the deformable material (4) from the cavity (22) of the first closing device (8), and a second closing device (24) for selectively closing and opening the connecting bore (23).

Abstract: An apparatus (1) for producing three-dimensional objects (2) from a deformable material (4) has the following features: a housing (3) that has a chamber (21) for receiving the deformable material (4); a feed device (5) for feeding the deformable material (4) into the chamber (21) of the housing (3); a first discharge opening (7) for discharging the deformable material (4) from the chamber (21) of the housing (3); a first closing device (8) for selectively closing and opening the first discharge opening (7), said device (8) having a cavity (22) connected via at least one connecting bore (23) to the chamber (21) of the housing (3); a second discharge opening (11) which has a smaller cross-section than the first discharge opening (7), for discharging the deformable material (4) from the cavity (22) of the first closing device (8), and a second closing device (24) for selectively closing and opening the connecting bore (23).