I am not really into 3D carving projects, I use my machine for designing and testing my 2D design files for other projects.

I have been using AutoCad Lite -- 1998 forever to do basic design and create the dfx files for the part.

Cut2d is perfectly fine for my needs for tool pathing and MACH3 runs my router just fine.

I have posted to my FLICKR albums a few of my "fun & games" test parts that I cut a couple of weeks back.

In addition, I can use the same dxf files for some of the parts that I cut on my vinyl cutter.

Take a look at them here:

Router-parts - a set on Flickr

I am busy on a couple of electronic projects right now, but I will try to answer any questions about the photos.