> Funny you should mention it

Great minds eh Bob ?

> I put a knob on the back end of the stepper motor shaft to do the
> up-and-down

That's just what I was thinking of re 'push-button drilling'. If the
stepper was driven, it could be activated with a foot pedal. Go
down with a press, automatic return up on release. Although a
floppy stepper is intended to move as a stepper, and a screw
drive would be more like a linear movement for drilling. Actually,
that's pretty much the mechanism in a 3.5" drive. And to drill you
really don't need more than a few mm travel

You've inspired me to perhaps do something with that box of old
drives under that house

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