Periodically we will be showing you potential service providers and resources for your rapid prototyping and rapid manufacturing needs.  Here’s an interesting video from a Michigan company, PTI Engineered Plastics. PTI is a full-service thermoplastic injection molder supplying industry with products for prototype, short runs as well as low and high volume production. For small to mid-range production, its manufacturing facilities offer injection molding equipment ranging from 12 ton to 500 ton.