Prototyping & product form

Whether by hand, digital means, prototype molding and/or 3D printing, early concepts can be brought to life in physical form and tested. Does the product "fit" in its place? Is it natural to hold? How heavy does it feel? Are the aesthetics appealing? is it slippery or does it grip? Does it make a sound when in the wind? Don't find out later - learn and adapt early on.
‍