Patent ID: 9623607
Date: 2017-04-18
CPC Classifications: B29C,B29L,B33Y

Claim:
1. An apparatus for additive manufacturing comprising: at least two independently driven material dispensing heads configured to deposit a material and form at least one segment group of a same 3D object, wherein at least one of the independently driven material dispensing heads has a capability to move in a direction perpendicular (Z-axis) to a material dispensing plane; and wherein separation between at least one independently driven material dispensing head in direction perpendicular (Z-axis) to material dispensing plane and other independently driven material dispensing heads is at least one material layer; and wherein at least one material dispensing head is configured to deposit the material at a variable deposition speed and to deposit a variable amount of material to form a material layer of variable cross section meeting zone of the separate segment groups at the same material layer.