On Wed, Aug 21, 2013 at 02:57:22PM +0200, Nils Hesse wrote: > I'm happy that this really could be usefull to someone. I would like to > create more footprint wizards and/or other plugins/scripts for KiCAD in the > future. > The code isn't really that much by the way, most of the code is > "housekeeping" (clean console outputs) and the creation of silkscreen lines > for the outline of the module (7 single lines).
Building it by hand is not too long, using a custom grid (and rotating it for the other sides). However I would *not* like do hand draw a socket 1366 :D (routing *that* would be a little hard in pcbnew, anyway...) AFAIK the biggest QFP is 144 pin so I'm safe for now. If you want documentation (i.e. the IPC formulas) for calculating pad size and spacing from the package geometry I have written a tutorial text on it (if you ever used LP Calculator or PCB Footprint Expert these are the algorithm they use). You can get it here: http://www.logossrl.com/~mrclnz/ipc7351b-impl/ipc7351b-impl.pdf It's freshly updated with the B revision (mostly they added the aluminum capacitor and deprecated the SMD-mounted DIPs); we're waiting the C one in a few months, however... do not worry, there is still people using the old IPC-SM-782 footprints and the boards are working anyway! You will need to download one of the two (free) calculators to have the 'magic numbers' to make the formula work (sorry, it's a paid standard and I can't reproduce their tables). The new calculators are already using the revision C tables, but they haven't actually changed a lot (the big change is rounding and the silk/fabrication layout). -- 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
