Abstract: Described is an apparatus and method for the additive manufacturing of 3D objects. The apparatus includes a 3D object material deposition module configured to deposit a portion of material forming at least a layer of a 3D object, a 3D object material solidifying module configured to solidify at least the portion of material forming at least a layer of the 3D object and a control computer. The control computer includes a module configured to analyze the slope or curvature change ratio and operate material deposition module to deposit the 3D object material across the cross-section of the 3D object with at least one of a plurality of layers forming the 3D object that has different from other layers characteristics.

Abstract: Described is a high throughput machine for manufacture of large size 3D objects. The machine uses a combination of a large size main material dispensing head with a satellite lightweight material dispensing head. A motion system could move each material dispensing head along a path identical to the other dispensing head path or move it along a path different from the path of the other material dispensing head. Such complementary movement supports increase in machine throughput.