PS. Don't expect any reports of rapid progress - mechanical
contrivances seem to take me an age, and I'm also undertaking
my own "vibroplex" bug key at the same time (Hence this
thread about marble slabs) . Mechanics is frustratingly slow.....

1. In software, you get an idea, and a couple of hours later, your
prototype is working well and exciting you as to the possibilities
of the next version.

2. In hardware, you get an idea, and a couple of days later, your
prototype breadboard is singing along.

3. In mechanics, you get an idea which requires 10 components,
and one week later you're lucky if you've managed to make the jig
for machining the first of those components!

"Airy R. Bean" wrote in message
...
I'll make up some switches out of brass rod -