3-D printing has a massive opportunity to revolutionize the industrial manufacturing industry. However, a recent sell-off in the sector has sent the stock prices of many companies spiraling down during 2014.  ExOne (NASDAQ:XONE) has been among the hardest hit, seeing a 40% drop in its market cap during the past six months alone.

However, Rule Breakers analyst Simon Erickson thinks there is still plenty to like in this company. In the following video, he points out three important things that investors should keep an eye on at ExOne, and why the company could prosper as 3-D printing continues to mature.

Are you ready to profit from this $14.4 trillion revolution?
Let's face it, every investor wants to get in on revolutionary ideas before they hit it big. Like buying PC-maker Dell in the late 1980s, before the consumer computing boom. Or purchasing stock in e-commerce pioneer Amazon.com in the late 1990s, when it was nothing more than an upstart online bookstore. The problem is, most investors don't understand the key to investing in hyper-growth markets. The real trick is to find a small-cap "pure-play" like Ex One and then watch as it grows in EXPLOSIVE lockstep with its industry. Our expert team of equity analysts has identified one stock that's poised to produce rocket-ship returns with the next $14.4 TRILLION industry. Click here to get the full story in this eye-opening report.

Simon Erickson owns shares of ExOne. The Motley Fool recommends ExOne. The Motley Fool owns shares of ExOne. 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.