Resident 3-D printing analyst Steve Heller recently turned to Twitter to see what questions investors had about 3-D printing stocks. Twitter user "Another BS Podcast" took Steve up on this open invitation and was wondering whether or not 3-D printing player ExOne (NASDAQ:XONE) "was worth investing in."

In the following video segment, 3-D printing analyst Steve Heller sat down with the head of Motley Fool's industrials sector, Blake Bos, to discuss whether ExOne is a worthwhile investment for your portfolio. Blake and Steve also discuss some of the risks that investors should be made aware of before buying ExOne. (The relevant segment can be found between 4:09 and 6:49.)

Blake Bos has no position in any stocks mentioned. Steve Heller 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.