I’ve been working on this project since 10-11-14. I can’t release all the details right now but it is a offline usb password storage device. I want to at some point have a kick starter to make this open source and sell the hardware and cases. Not really sure right now but many things will fall in place over time. They always do.
The first version of the 3d printed case failed, and so did the 2nd. It took about 7 tries to get it right.
I used Oshpark to make the 3 proto boards and used a griddle and laser temp gun to solder them together.
It was very difficult controlling the temp with a knob to hit all the set-point for the solder to connect correctly.