There are many 3rd party progammes which will cut from Draw to the Roland or any other plotter some are better than others, Sign Tools is one - Co Cut is probably one of the best known but many of the recognised sign programmes ie Signlab, Easysign (the ones I use) also have a 'cut down' version which either will import an ai or eps file or plugs in to Draw. These programmes don't usually cost a fortune but vary in what else they do. If it is purely to cut I would look at Rolands own website, as new Rolands I think ship with a cut driver you may find one you can download. I have to say good as Draw is for a large percentage of sign jobs you cannot beat a bespoke sign programme, having said that they are usually not as functional as Draw at printing/typesetting.
Hope this helps
Alan