Measuring the taper of a taper-sided....
I'm curious how you might go about measuring the taper angle of a taper-sided slot. Imagine a plate 1/16" thick. There's a slot cut through it that is about 1/16" wide on one side of the plate and maybe 1/8" wide on the other side of the plate, AND THE TAPER DOES NOT EXTEND THE FULL DEPTH OF THE SLOT.
Like this (side view through slot):
(Pretend the dots aren't there -- they're just to make the formatting work.)
Sort of like the slot is countersunk on one side. How would you determine with good accuracy what the angle of the tapered portion is?
Top view of the plate, the slot looks more or less like this:
The long dimension is maybe 1/4". All dimensions are approximate and are given only to give some sense of the scale involved.
My idea is to take something like silicone form-a-gasket that will peel off when it hardens, fill the slot, and when it hardens take it out, slice a thin vertical cross-section with a razor blade, and measure its angles with a toolmaker's microscope, which is available. But I'd like to know if anybody has any other ideas.
[This message has been edited by SGW (edited 07-08-2004).]
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