To obtain a demo laser CAM application (named gdmc) for Galil bus-bassed servo controllers follow this link
http://www.goldtreesystems.com/testing.htm

Though the software is evolving and has some gcode and dxf import limitations it is very capable of performing the laser cutting and engraving jobs it is designed to do.
Currently I am developing a raster processing mode and galvanometric scanner interface. Feel free to contact me about customizing gdmc to fit your application needs.

Cheers, George