Being an emerging growth company, voxeljet (VJET 14.62%) certainly has some big shoes to fill. After all, the industrial-focused 3-D printing company is the most expensive 3-D printing stock on the market, which inadvertently sets expectations far higher than they are for its more established peers. As a result, how the company executes in 2014 will likely make or break investor sentiment going forward.

In the coming year, voxeljet will be expanding its service center presence, allocating lots of capital, and of course, selling more of its highly specialized 3-D printers. Because there are so many moving parts, it's crucial for investors to watch developments out of voxeljet closely, because it could be material to the long-term investment thesis.

In the following video, 3-D printing analyst Steve Heller lays down the three most important things for voxeljet investors to watch in 2014.