In: Physics
In a particular layer-by-layer stereolithography process(e.g. slides 16-17 of lecture module 3),the illumination intensity of the projected light pattern is 50 mW/cm2, the penetration depth Dpof the resin is 150 μm, the printed layer thickness is also 150 μm, and the curing dose is 0.4 J/cm2.(a)Calculate the minimum required illumination time per layer, showing working.[5 points](b)Describe and explain one physical factor other than the required illumination dose that contributes to the total printing time in a layer-by-layer stereolithography process.[4 points](c)Describe any post-processing steps that may be required after the geometry of the part has been formed by this printing process.