Libre Graphics World is running a comparison of Linux applications used to drive cutting machines for vinyl, cardstock, and other materials. "Most cutting devices rely on HPGL printer control language and its versions such as CAMM-HPGL (Roland). So the job is, essentially, to take a vector graphics file and convert it to HPGL, then send it to the device along with control commands such as blade speed and pressure." Looks like several options are available, including Inkscape extensions and stand-alone programs.
June 29, 2012
Vinyl Cutting on Linux: The Real Deal (Libre Graphics World)
Read more at LWN