The other thing that I worry about is that the non-water-soluble inks used industrially (ID card printers and PCB silkscreen printers have been alluded to) may not be suitable in an amateur environment. The problem with solvents is that they evaporate, probably clogging everything up in the process. Industrial equipment may assume near-continuous operation with a cleaning cycle at the end of each day, but when you start talking about producing a couple boards a week, you may end up spending all your time cleaning your printheads and trying to keep your (probably expensive) ink from drying out. I have this problem with ordinary inkjets; I've "always" had a B&W printer (currently a laser) as well as the color inkjet. The B&W printer gets used for everything that doesn't NEED color (faster and cheaper), and the color inkjet sits there with it's ink drying up and its printheads getting clogged. (and the money I'm nominally trying to save by not printing color gets used up on head cleaner... Sigh.) BillW -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.