Its great to see that after years of ignoring the 3D printing craze that cnczone is finally including this emerging technology.
What I find odd are the choices for software in this section.

Repsnapper is an obsolete printer driver program.
Skeinforge is the gold standard for slicing models
Slic3r is a simplified version of Skeinforge
And Step-NC is not used for printing.

What about Mach3 which many folks who are members of CNCZone already have and fully understand? Not a popular program for RepRap Forums because if they perfer to use freeware instead of paying for something.

I found that Mach3 works great for driving printers. I'm familiar with it and like the degree of control that Mach3 offers, even for 3D printers.