But so far it's still hard to see how 3D printing fits into lives of average consumers, as something they would one day "need" to own. 3D printers can cost as much as some cars – but then most people who have cars need them to get around. There's not yet a case to made that the same kind of necessity will ever exist for a miniature Rodin in your living room.But some solutions to this problem are being explored in Europe. The European Space Agency has partnered with a trade organization for metal producers to figure out how 3D printing could be most helpful to them. Suggestions have included ways to print super-durable, super-lightweight metals through highly precise layering.
2. 3D Systems Corp. ( DDD): Engages in the design, development, manufacture, marketing, and servicing of 3D printers and related products, print materials, and services. Market cap at $5.17B, most recent closing price at $53.72.