Investors in additive manufacturing companies 3D Systems (NYSE:DDD) and Stratasys (NASDAQ:SSYS) have seen phenomenal share-price run-ups over the past year, and if today's nearly 10% pullbacks are any indication, upcoming earnings could be quite dramatic. In the following video, Motley Fool analysts Blake Bos and Isaac Pino discuss how investors should approach investing in this hot sector today and highlight one 3-D printing company set to go public soon -- ExOne. 

Blake Bos has no position in any stocks mentioned. Isaac Pino, CPA owns shares of 3D Systems. The Motley Fool recommends and owns shares of 3D Systems and Stratasys and has options on 3D Systems. 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.