On Mon, Feb 16, 2009 at 09:11:30PM +0100, Stefan Salewski wrote: > Am Montag, den 16.02.2009, 18:53 +0000 schrieb Kai-Martin Knaak: > > > > Some remarks: > > > > * 4 Layers will take 12 working days minimum, plus what ever it takes for > > fedex to ship from china. If you don't register for "open account" > > payment needs to be confirmed before production time begins. > > > > Yes, boards from china will take some time. > > > * Shipping and customs and EUSt have to be added on top of the quoted > > price. > > > > Yes, but total costs are still not bad. If I remember correctly: Four > boards, 4 layer, each 26cm * 32cm will give total something about 1000 > Dollar. The only company which I aware of here in Germany which is not > much more expensive is http://www.microcirtec.de > Large quantities are really cheap at pcbcart, so I think it is a good > idea to try them. > > > * There is a maximum number of holes. (300 for my 100x100mm test case) > > > > I think this is no problem, most people use at least some SMD.
Hmm, my last board was almost exclusively SMD and I ended up with 450 holes on a 100x160mm which was not even dense, granted that the 35 connectors are through-hole (117 holes total), but when you need four layers, you typically end up with quite a lot of holes to the power planes and quite a few for routing too. Gabriel _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user