I work for a few years as a programmer in motion control.
I have been messing around writing nesting software, I have the dxf to gcode sorted and have a simple bump nesting routine running, gets a bit too slow when I have more than 10 shapes on the go, but early days yet. Dumped a screenshot in the gallery. It is used with a touch screen so has big buttons.
Did you know that Vectric now has nesting in VCarve V5.0 and Aspire ?
there are some video's on the Vectric home page.
looks to be clever stuff, I'm glad I only have to worry about 2D . I thought about using other peoples routines under license but it gets costly rewriting the interface so we can bung it on a machine controller. Generally we flog MAP software with a machine, but its good to have a simple system the operator can use out on the machine.