Building a total cost framework for 3D printed parts

For these limited-quantity items, AM is a natural fit, far more economical than CNC machining or injection molding. [...]to expand AM into new application spaces, we need to answer the question "should I print it?" That question is even more important because AM can produce parts on-demand even if the parts were designed for a traditional process like CNC machining or injection molding. For plastic injection molding or metal casting, this is typically a few hundred units per year. 2. Even if the AM part is double the cost of the traditional part, the increased efficiency can generate significant long-term energy savings for the end-use customer. 3.