Vowin rapid Prototype's need a streamlined design to production process flow. We noticed that more and more the customer had to accept so many limitations to create a plastic prototype. Which seems to negate the reason behind making a prototype in the first place. A plastic prototype is for testing your design before production capable tools are made. If your initial design is so limited, what are you going to learn from it to ease the transition into production parts? We have seen results from not learning from the prototype.