1. I'm aware that " 3d printing " actually means an additive process. 2. A large number of additive processes are now available. 3. A number of additive processes are now available. 4. Unlike other motion-picture additive process. 5. In the alternate, regular metal foams can be produced by additive processes such as selective laser melting ( SLM ). 6. Additive manufacturing is achieved using an " additive process ", where successive layers of material are laid down in different shapes. 7. Philip Glass's " 1 + 1 " ( 1968 ) employs the additive process in which short phrases are slowly expanded. 8. Most rapid prototyping technologies are based on the additive process, solidifying thin layered sections or slices one on top of each other. 9. Many exceptions to this rule are products of ring-opening polymerization, which tends to produce condensation-like polymers even though it is an additive process. 10. The ( semi-) additive process is commonly used for multi-layer boards as it facilitates the plating-through of the holes to produce conductive vias in the circuit board.