I'm beginning to wonder if we need to require that this thread be read in completion before accepting a new member.... EVERYTHING YOU WANT TO KNOW ABOUT A UDS AND MORE IS WITHIN THIS HOLY GRAIL. Seriously, we've all read it when we built our first UDS. These things are simple and bullet proof if you follow the directions as experienced by other members. Once you get the idea of how they work, then you can get all "Macguyver on its ass". IMHO thats where the real fun is. In order to make a better mousetrap, you have to know how the old one worked.
"Assumption is the Mother of all F___ups!"