No, they use etched boards. It is a WHOLE lot cheaper and faster to etch them than to mill them one you get above a quantity of around 1/2 a board. That is after you have the equipment to do it. Personally, I think a home built PC board drill for the holes and photo etched pre-sensitized boards is the best route for gotta have it today protos. You can laser print the artwork and etch a complicated board much better and faster than milling it. Now if you could just etch those damn holes. Sean Breheny wrote: > I was under the impression that AP circuits used milling equipment, though > (at least in the cheap proto 1 service). IS theirs just SO much more > expensive that it overcomes the problems? > > Sean > > At 02:58 PM 3/28/00 -0500, you wrote: > >Limitation was it wouldn't do fine traces (under 20 mil) accurately. > There was > >always the whisker of trace from the one side of the cutter. > > > >Boards which are not perfectly flat would be cut unevenly. Made for REAL > >problems. > > > >AP Circuits turned out to be a better deal in the long run. > > > >If you're looking at spending that much money, get a Kepro system instead. > > > >Andy > > > > | > | Sean Breheny > | Amateur Radio Callsign: KA3YXM > | Electrical Engineering Student > \--------------=---------------- > Save lives, please look at http://www.all.org > Personal page: http://www.people.cornell.edu/pages/shb7 > mailto:shb7@cornell.edu ICQ #: 3329174