Hi there,
With our CMM we have a software package that allows us to measure Distances X,Y,Z, Radii, circumferences, Angles, from a certain datum (Resettable at anytime), pretty much anything you can think of. When we "Digitize" a workpiece, the coords are stored by the software, and then we can input them as a series of points and basically "join up the dots, rads, angles, or whatever" We have still to work out how we might save them as a DXF of points, but our method seems to work.
BTW the probe seems to be a make or break contact, when it is "unarmed it moves rapid" but when it is "Armed" it is ready to sense the slightest touch, stop, and then record it.
I don't know how accurate a probe attached to an encoder and a seperate input would work.
I've just been watching the guy service our CMM, And from what I can see the whole assembly runs on air bearings (Basically air pushed through grooves in feet at the bottom of the "Y" axis which meet the granite table), sort of like a hovercraft. Both axes are driven back and forth by a series of bearings which are set at (looks like 2 angles) to a rotating rod, which spins CW/CCW creating backwards and forwards motion.
Forgive me for my ignorance but what is "FBB?"
Mark...
