There is an increasing array of low-cost options. For instance, virtual prototypes, or “computer-aided designs,” generally cost less than $1,500 and are fine for inventors with prohibitively expensive or large-scale inventions, or those looking for an affordable prototype, says Duke Kramer, president and chief executive of DTI Prototype & Design in Lompoc, Calif. At the other extreme, a “preproduction” prototype that looks and works exactly like the end product can cost tens of thousands of dollars, he says. Another less-expensive option: “rapid-prototyping,” in which a machine spits out a three-dimensional replica of your computer-aided design, often for a few thousand dollars or less.
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