2. A prototype of a part is to be fabricated using stereolithography. The base of the part is shaped like a right triangle with dimensions 36 mm by 48 mm. The height of the part = 30 mm. Layer thickness = 0.15 mm, and laser spot diameter = 0.15 mm. The beam velocity across the surface of the photopolymer = 2200 mm/s. the minimum possible required to build the part, if 25 s are lost each layer to lower the height of the platform that holds the part. Ignore setup time and post processing.