This is a very stupid question coming from a total ExpressPCB and layout newbie. I have an LM317 in a TO220 package. I am trying to create a through hole layout for it in Express PCB. Looking at the POD, I see that the leads are 0.07 inches in thickness and are separated by 0.1 inches. When I try to create a custom part in ExpressPCB, I found a 0.13 inch round pad with a 0.079 through hole. This won't work right since my pin to pin spacing will be 0.13 inches and I will be shorting the pins? Do I have to create a new pad which has a 0.079 inch hole but total diameter should be < 0.1 inches to maintain pad to pad spacing? Also how do I reduced the thickness of the ring around the hole in the pad?
Also any links with tutorials on ExpressPCB (where they show a simple board and have a step by step tutorial) would be very helpful.
Thanks for your patience and help.