Ever Heard Of A Sine Micrometer?

[hman]

very cool.
not $350.00 worth of cool, but still very cool.
Definitely would be a fun project. It would see more use sitting on the coffee table than in the shop though.

I'll agree to the extent that it would not be a frequently used tool. Definitely not worth $350 to me. But just recently, I was trying to fabricate some 0MT tapers. Trying to measure them (to figure out just how much to take off where) was pretty tedious. A taper (sine) micrometer would have been exactly right for such a job. When you need it, you need it!

And yes, it would do well on the coffee table between uses. Especially one I'd built ... and could brag about.