On the subject of printing circuit boards: is conductive toner possible? Imagine if you could print semi-conductive traces on a piece of mylar and then electroplate the traces, creating your own very rapidly prototyped circuit board? I don't know if a laser printer would choke on conductive toner though. There are issues with electroplating it too, I'm sure. -- Martin K -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist