Ron K. Jeffries wrote: > I like where you seem to be headed. Good ! :)
> What is cost impact when manufactured in volume? Not having the wheel saves a lot. That part is USD 2.78 @ 5000 at Digi-Key, so it probably doesn't go much lower than USD 1.5 even if you buy in very large quantities. The wheel, being the only through-hole component, also complicates soldering, and testing it would be a treat. > You save cost of jog wheel. Add cost if sevond PCB and (???) may have > higher assembly cost? The cost of the second PCB should be very small. It can be from the same raw board as the main PCB so all it costs is the board space, which is cheap. If both boards are on the same panel, they also go through SMT together. Again, no significant cost difference. It will need some means of interconnection. An FPC soldered to the two PCBs would probably be the best solution for volume. We already have a much larger FPC to solder, for the OLED. For prototypes, where making an FPC would be prohibitively expensive, I may just join the two with a header or if this is too rigid, with individual wires. > How about cost to test? Similar.??? Probably much cheaper. I would expect generating a field that simulates a finger in the test fixture to be fairly straightforward. I've never done this, so there may be surprises. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
