It was the contour of eyewear frame alone, which I imported into the Shapr3D. Even with zero cad experience was very simple to create the 3D model. Make the shapes (frames, lens, temples), bending, rounding edges, assembly, cutting from each other were very simple. The freeform was ideal for the lens bending. I need Rhino only for mirror the hinges, temples, silicone parts... That will be unnecessary within few updates. The first model (first meeting with Shapr3D) was take 4-6 hours, now it's maximum 1 hour. Contour in Rhino 3D, modelling in Shapr3D, texture in Keyshot.