On Jul 22, 2009, at 11:21 AM, AGSCalabrese wrote: I want to experiment with dot matrix impact print heads. I am in Denver, CO USA I want to see if the rods in the heads can be used to push viscous liquids out a nozzle. OR I want to see if the rods in the heads can be used to valve* viscous liquids out a nozzle. * is valve a verb ? Gus Calabrese -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist