A company does research on AM production cost on the basis of a sample part. A simple Stainless-Steel part has to be evaluated: In their cost model, the following information and conditions are given. The cost of machine takes up 70 percent of the total cost: AM machine utilization 2000 h/year Depreciation time 4 years Investment costs 500,000$ Costs for maintenance 20,000$/year Scanning speed 1m/s Recoat time 15s/layer Part Volume 1x1x1cm Hatch space 100m Layer thickness 30m (a) If we want to build 5 pieces per build, what is the cost per piece? (b) If we want to build 10 pieces per build, what is the cost per piece? (c) Please draw a graph of piece versus cost per piece and give a recommendation for number of parts manufactured in one build.