Jason, You are showing why open source has a hard time to survive. You criticize w= ithout knowing. At least you recognize that you don=92t know, but the damag= e is done anyway. I already mentioned that kicad had drastically improved i= n the last couple of years. It can handle now 16 copper layers, and blind b= ias. I do not understand why people poo-poo over open source software, without e= ven trying it. Very often, it is as good or better as closed source commerc= ial software, but lack the paid support that commercial software use to mak= e more money. But the developers keep improving it, and AFAIK, I will never= use closed software again, but will support a product like kicad to the ex= tent of my possibilities. Jean-Paul AC9GH On Sep 7, 2014, at 4:32 PM, Jason White = wrote: > On Sun, Sep 7, 2014 at 1:19 PM, wrote: >> I suspect that you will find free/low priced/hobby packages have layer >> limitations because the underlying code to keep track of everything on >> each layer becomes a big mess if not well designed. Once to get to >> 'serious' packages that cost significant money you can do anything with >> them from laying out silicon for ICs to multilayer PCBs where >> manufacturing technology of the boards sets the maximum layer limits. >=20 > While I agree commercial software is much better suited for doing 12 laye= rs, > I know for a fact the gEDA supports an unlimited number of routing layers= .. > It is controlled by a compile time variable that is set to 8 by default. > Unfortunately, it does not support blind vias, which I have to imagine is > a show stopper on high layer count boards. >=20 > I don't know how it is for KiCad, but I have to imagine that it is a simi= lar > story. >=20 > --=20 > Jason White > --=20 > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .