2011/3/30 Werner Almesberger <[email protected]>: > [ Taking this from private conversation to the list. ] > <snip> > So 17 mm should be a very safe size. In a pinch, we could go as low > as 16 mm. Does the PCB need this in the Gerbers or will they add it > as part of the panelization ? <snip> I will ask to PCB vendor about it.
> Plan B would still be to just manually solder the connector. Pro: > - no need to reserve PCB space and make a hole, > - no need to worry about the insertion process, > - may make SMT a little cheaper, > - legs may have stronger solder joints > Contra: > - extra work step, > - board needs cleaning afterwards (flux removal), > - complicates production testing immediately after SMT (we'd > either need a special test firmware that works without USB and > then flash the real firmware later, or solder the connector > before testing) For me the plan B is a no way, maybe solder 100 units is still posible but 500 , 1000 or 10.000 units need a taks force that will not compensate the that smt a little bit cheaper. the SMT vendo seems quite confident on smt mounting the USB connector meanwhile there it the hole to not "cloud" the boards beside in panel, so I think aboid as much manual as posible is better > > _______________________________________________ > Qi Hardware Discussion List > Mail to list (members only): [email protected] > Subscribe or Unsubscribe: > http://lists.en.qi-hardware.com/mailman/listinfo/discussion > -- David Reyes Samblas Martinez http://www.tuxbrain.com Open ultraportable & embedded solutions Ben NanoNote, Arduino, Openmoko Hey, watch out!!! There's a linux in your pocket!!! _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
