Fabricator is ready to roll with the flex circuits, after a looooong game of ping-pong and a few re-work cycles. Getting things right in such tight constraints was not a trivial task. And after more than a year of refinement, the digits should be landing on my bench around this time next month. I think I've pulled it off. The blue circle is a US dime.

This layout will accommodate either of two strategies I have for eliminating the preferential flex plane of the flex circuit. Construction is 4-layer polyimide. The dense nodes will be FR-4, giving the components a rigid mounting plane (durability-enhancement).

The CPLD is ready to accept the digits, and the software is ready to validate them.

I now have one month to be ready to cast them in silicone. So I'll be blendering.