For most of human history, inventions have always needed working prototypes before being considered for mass adoption in the market. InventHelp Prototype While a prototype isn’t necessarily a requirement for patenting, you will need one for practical reasons like funding, safety testing and so on.
What should a prototype be like?
A prototype model could be just about anything that serves as proof that your product works. If you have a physical product, like a tool, a software-rendered CAD model would be the minimum. Having a working, a physical object would be preferred overall.
During the invention process, it’s normal to build several prototypes and having multiple failures. You could always use an invention company to help with building or modifying prototypes, especially if you are in the phase of getting a working model to help raise capital.