I have an opportunity to purchase a long dormant (7 or more years) xenetech tri star engraver. Owner purchased it many years ago hoping to go into business and never did. Since the tri star is a discontinued item I was hoping to hear from people who owned it. How well did it work, especially the cylindrical attachment since Xenetech can no longer get parts for the cylindrical piece. Also, does anyone have any experiences with an engraver which wasn't used for more than 5 years? Are there problems with engravers if they stay dormant for so long?