Shares of both 3D Systems (NYSE: DDD) and Stratasys (NASDAQ: SSYS) were up, by 16% and 15% over the past 5 days, respectively, but what was behind the jump in this industry? In this video, Motley Fool analyst Blake Bos discusses how 3D Systems beat recent accounting irregularity allegations, which caused its short-term spike, and he discusses some long-term projections for the industry, including patent litigation that we should expect to see, as well as how long we'll have to wait before personal 3-D printers are practical for the home.

Blake Bos has no positions in the stocks mentioned above. Isaac Pino owns shares of 3D Systems. The Motley Fool owns shares of and options 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 don't 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.