The following video is from Friday's Motley Fool Money roundtable discussion with host Chris Hill, as well as analysts Charly Travers, Jeff Fischer, and Jason Moser.

In this segment, Jeff talks about why he likes the 3-D printing industry, and why the two leaders in that area, 3D Systems (NYSE:DDD) and Stratasys (NASDAQ:SSYS) are important companies to be following. They've both had an excellent year, and 3-D printing is ramping up to be a revolution in manufacturing things faster and cheaper.

Chris Hill has no positions in the stocks mentioned above. Jason Moser has no positions in the stocks mentioned above. Jeff Fischer owns shares of 3D Systems. Charly Travers has no positions in the stocks mentioned above. The Motley Fool owns shares of 3D Systems and Stratasys and has the following options: short JAN 2014 $55.00 calls on 3D Systems and short JAN 2014 $30.00 puts on 3D Systems. Motley Fool newsletter services recommend 3D Systems and Stratasys. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.