Connector design

From Code Lab Wiki

This is the first draft of the new connector design. Printed in ABS on 10/17. This arrangement of magnets doesn't work - when all six are aligned, it's beautiful, but it has a tendency to connect (with a lower force) when only 4 of six are aligned. I can't get the magnets out once they're in, so I'm printing another, and will try a ++_--_ pattern instead of +++---. This should only line up in one orientation. If that doesn't work, perhaps only two magnets will provide enough force.

Also, the edge of the spring probe face should be filleted - sometimes it catches. Also, let's make the tapered cut on the jack larger -- since the magnets protrude, the spring probe face is still 1 or 2mm away from the PCB.