Congratulations on getting the Edge boards finished, tested and out; I see from the tracking widget that the board I ordered to test is wending its way towards me as I type this.
I’m designing this SoM into an larger piece of kit, doing our own carrier board. Given that I’m doing the work anyway, I thought I’d publicly post an Upverter/Altium part (footprint + symbol for the MXM314 socket with the all the pins correctly labelled for the Edge pin out), and similarly for Kicad.
I’ve done the time-consuming bit already: footprint for the socket, then labelled and double-checked every pin. The final detail is the correct position for the mounting holes, which it’d be really handy to confirm with you. I don’t want to post a footprint that turns out to be wrong!
Say the holes for the big and little plastic alignment pins for the MXM314 socket are at (0, 0) and (82, 0) respectively, on a mm grid. What would the coordinates of the two mounting holes for the Edge be? I think from crude measurements of the silkscreen drawings that they’re somewhere around (18.9, 47.5) and (63.1, 47.5) but it would be really useful to confirm. Are they for an M2.5 or an M3 screw?