11 myths about Additive Manufacturing, Part 1

AM is surrounded by much hype, but are you getting the whole story?

Five years ago, Hod Lipson and Melba Kurman gave us Fabricated: The New World of 3D Printing,1 helping to both create and ride a wave of enthusiasm for 3D printing. This enthusiasm, combined with the infusion of U.S. government funding and the expiration of key patents, prompted many to buy a 3D printer for the kids and make stock investments in rising star companies.

Powder bed processes

Along with their book, Lipson and Kurman  gave us the 10 Principles of 3D Printing as a roadmap into the future to explain why 3D printing will disrupt manufacturing and product design. I bought and read the book and enjoyed it. I get that “no one wants to follow a small dream,” but as a process engineer with a background in advanced materials, digital design, and manufacturing, I knew it was not that easy.

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3D printing and additive manufacturing – what’s the difference?

If you do it in your garage, it’s “3D printing”. If it’s used to build a car, it’s “additive manufacturing”? Where’s line between these two terms? Let’s see if we can’t find it.

A new way of making.

Are “3D printing” and “additive manufacturing” (AM) the same thing? In general, we know that terms stretch over time to include more than just their default meanings. Most of us carry digital entertainment supercomputers around in our pockets, and call them “phones”.

Whatever the name, new ways of fabricating directly from bytes to stuff are radically changing the what, where, how, and when of making objects. What roles, then, do the two terms “additive manufacturing” and “3D printing” play in describing new ways of making?

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