Doing work for a product design and development firm, I've witnessed many inventors asking to leap right into a how to make an invention prototype with InventHelp using their sketches. While this may seem like a fast way to get to the market, it fails in one extremely important aspect: http://stephenfuiv14703.blog5.net/29370728/prototyping-an-item-before-proper-design-a-recipe-to-fail