OK. Done. (Or nearly done.)
Controller daughter card complete with some added functions for LEDs AND some pre-drilled holes for additional prototyping. (e.g. a few transistors to power LED strings.) That version was frozen at v140821h4, and is so labelled. Also ti was widened by 0.250" and 6/32 or 3mm mounting holes added at all four corners.
GH-122 Controller PCB by samwisekoi 2014The main board went through a bunch of changes, and with the exception of errors, general cleanup, and possibly altering the section spacing to match Cherry or Unicomp cases, the design is fixed. JIS, extra cut lines, or an extra connector set did not make it in for this round.
What
did make it in was:
- PCB-mount stabilizers for ANSI and Winkeyless ANSI switch positions.
- A three-LED section above the numpad to match the layout of the IBM keycaps.
- Improvements to many of the traces, including safer free zones around the cut lines.
For spacebar stabilizer spacing, I went with 50mm for the 6.25 spacebar and 2.500" for the 7.00 spacebar. I used the DT wiki for the measurements, so please advise if these are the wrong spacings.
GH-122 Near-final Prototype by samwisekoi 2014Remaining to do for this version:
- Label all switch positions (e.g. R3C17).
- Add mounting holes for the main board.
- Increase horizontal spacing between sections once I have specific information to do so.
Still getting a price estimate of $59.75 each for qty=10.
My JD40 comes in today, and the prototype GH-36 PCBs come in this week, so I am about out of time to work on this design.
One more design pass and then we'll see about getting some made.
Thanks to one and all!
- Ron | samwisekoi