A schematic of SLS/SLM process where (1) laser source, (2) scanning system, (3) scanning mirrors, (4) powder roller, (5) powder supply, (6) feed platform, (7) collected powder, (8) powder bed, (9) sintered powder, (10) collection platform, (11) build platform, (a) unsintered material, (b) sintered powder particles and (c) laser sintering process