FYI, Neon Wizard is the reccomended software for this machine. It comes with it when you buy one new. I don't know why but it exports a better dxf file than anything else for this patricular machine. I have tried Flexi, Corel, Illustrator and others but Neon Wizard works best.
Also, this machine only works with fonts that don't have short sarrifs. It needs about 1.3 inches to change direction. The bigger the letter, the better job it does. If you do an Arial font you can probably make a hundred letters a day with it.