So in this case, let's keep what was said before; origin in the middle of SMT, origin on pin one of THT, which is put in the first quadrant.
Are there any opinions about schematics using millimeters, which I mentioned earlier? Carl On Sat, Apr 19, 2014 at 6:15 PM, Cirilo Bernardo <[email protected]>wrote: > > From: Carl Poirier <[email protected]> > >To: KiCad Developers <[email protected]> > >Sent: Saturday, April 19, 2014 11:15 AM > >Subject: [Kicad-developers] Library Convention > > > > > > > >Hi developers, > > > [snip] > > > >1. Is a device that's made by many manufacturers and sold in tubes, tapes > or trays always in the same orientation? > No. > > >2. For automatic insertion of THT components, where should the origin > point be put? Jean-Paul Louis was saying to me it should be on pad 1, so is > it always the case? > > > No. > > These are not really issues for the EDA; they are issues to be discussed > with the PCB manufacturers. For the orientation of SMT devices, use one of > the existing standards; you can even use a standard package orientation > when the actual manufacturer does not place the pins according to the > standard. The pick/place machines don't care about pin numbering, only > about fiducial marks on the board and component orientation in the > tray/whatever. > > Creating numerous orientations of footprints will only confuse matters. > > For THT, once again any orientation issues should be discussed with the > specific manufacturer. The THT world is even worse than the SMT world; at > least for SMT there are (multiple) standards even though in many cases the > standards are not followed. > > - Cirilo >
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