Product Design Prototyping in CAD 

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Product design prototyping is an important step in the development of any product. There are lots of stories and studies sharing the value of this, but suffice it to say, without prototyping, product development would be much more time consuming, expensive, and risky.
Prototyping, in its most formal definition, is the production of a functional product, built in materials as close as possible to the production materials, built to the tolerances of the production drawings and assembled to test. These prototypes we call “Engineering Check Prototypes” because they “check” our engineering and are used for full functional testing. Sometimes these can also be used in Compliance Testing and Certification submission for UL, FCC, TUV, CE, CSA and others. There is a caveat here about certain submissions requiring full production molded parts, not machined samples in the same materials, although it seems to be a case by case issue depending on the product and/or market.
Prototyping, more broadly interpreted, can and is used for validation in many steps of the development process. It can be used as form studies to check ergonomics, subsystem test builds to assure function early in the process or engineering check prototypes to check engineering files and test prior to production ramp up.
Prototyping described above is really just prototyping of products, but product design prototyping could also apply to computer software applications or web site apps. These digital products are often prototyped to test user interactions and market acceptance. Google developed a process called “Design Sprints” which is an accelerated process to study and identify problems, conceptualize and develop solutions, create prototypes and test them in about 5 days. Obviously, because it started with apps, the prototyping can be done very quickly (in hours not weeks) and testing can be done on a phone, tablet or desktop from those visual page examples.
The development process starts with proving the idea works, leads to physical studies of the device, mechanical and any other engineering occurs for production of the device and testing, tooling and ramp up begins. We’ll share how product design prototyping applies at each step of the development process as it flows from initial concept to mass production.
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