If you were a 3D Systems' (NYSE:DDD) investor 2013, you must've been thrilled with the 150% gains for the year. With 2013 now coming to a close, you're probably wondering what to expect out of shares in the year ahead.

In the following video, 3-D printing analyst Steve Heller gives 3D Systems investors some advice on what to expect out of shares in the year ahead. In particular, investors shouldn't anchor their decisions to the past, expecting that 2014 will be another home-run year for 3D Systems' stock. Instead, investors should be thinking about the business today and what it's doing to become a greater business tomorrow. Over the long term, this will likely serve investors better by helping them set more realistic expectations.

In addition, Steve touches on industry growth rates, analyst expectations, and what it all means for investors. Check out the video below to get the full story.