On Mon, Apr 28, 2014 at 03:00:41PM -0400, Jean-Paul Louis wrote: > US is really sticking to the Imperial system, but the rest of the world is > metric. So who will win is not obvious, but I would bet on the metric on the > long run.
OK, there is a rule for this too :D IPC7351B says 'everything is metric', IPC7351C (will) say: 'two distinct libraries, one for metric and one for imperial'. Also while the default fabrication level was B (nominal), in C the default will be C (minimum). Yes, they regressed but the imperial people obviously lobbied a lot. > But it is a lot more important in the footprint because it relates directly > to assembly. We need to freeze the default orientation of the part, and > provide an extra field for the orientation of the part in the tape for > delivery in tape and reels, or even in trays for big devices. > > BGA arrays is a huge problem as manufacturers do pretty much as they want on > that respect. Even for other components they do it... IMHO it's not useful to add the tape orientation since a) there is *always* something to adjust at the PnP station and b) probably even for the same part different manufacturers use a different taping. In addition: this field would be on the package (in pcbnew) or in the schematic? maybe some SO8 are delivered in one side and other ones on another... -- Lorenzo Marcantonio Logos Srl _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
