21. Making a Proof-of-Concept Prototype TM Use whatever you may have available to create a Proof-of-Concept Prototype but call in the pros if necessary.
22. Design Prototype TM Prototype that has the functional, engineering, and aesthetic properties of the final product and is produced using quick fabrication methods rather than high volume methods.
23. Making a Design Prototype TM Stereolithography Machining Form testing with for 1 to 2 parts Form, fit, function testing for 1 to 20 parts Polyurethane Casting Form, fit, function testing for 15 to 100 parts
24. Production Prototype TM Prototype that is fabricated using the final design and manufacturing methods.
25. Making a Production Prototype TM It takes manufacturing tools and machines to produce a production prototype.