When Should You Get an Industrial/Product Designer Involved?

Many times, we realize that we need to partner with an industrial designer to bring an idea to life. But, usually we don't know when to involve the designer. Should we bring them in loop as soon as we have the idea, or when we have developed the idea as much as we could on our own. In most cases, we reach out to industrial designers only when we have figured out exactly what we want to build, how the product might function, what features the product might have and what we imagine the product to look like. There are essentially three stages to get an industrial designer involved. Let us Explain.