MarkUMSU, actually I have been pushing for a digitizing probe for our CNC machine. As I understand it, that would let our CNC fake being a CMM fairly effectively. If I can get that through, then this little project of mine is superfluous.
NickeE, I like the idea of a digital encoder for the angle sensor; I hadn't before seen any that were realistically (for this project) priced. I'm looking at this as a one-off solution to awkward radius measurements, and I have to compete with the simplicity/economy of just grabbing a depth mic...
Has anyone ever heard of/built such a thing? Something similar to using a depth mic and calculating the radius from the drop and chord length, useful for odd radii that you won't find on a fixed gage (a bit of plate with a 1/4" or whatever radius cut in it).
I've been thinking (okay, I've...