Product development starts with an idea on how to solve a problem or they wish to create a product that people want to buy with the heart, and these ideas need research to develop a requirements specification before do the fist sketches with a pencil.

With the first sketches ready, next step will be to make a 2D design and then a 3D model with correct measurements, the 3D can be used for a 3D printer to get feedback about shape and size or to make drawings ready for the production of the first prototype.