Not sure what you mean there.......ttrikalin said:nice start.
Do you plan to use them just for crude positioning, or for actual precision machining -- i.e, how good do you expect the final installation and works to be in terms of accuracy?
t
ttrikalin said:was ... thinking (obviously not thinking) that non-parallel positioning of the scales to the datum surfaces of the mill ways might lead to some cosine error -- but this would be too small an issue...
Beg your indulgence mates
t
Troutsqueezer said:If there is some misalignment of the beam (DRO) relative to the movement of the table or head or whatever you mount it to, then you get cosine errors because now there is an angle (vector) to take into consideration. No doubt this has to be a substantial misalignment for it to make a detectable difference with the resolutions we're dealing with in this hobby, plus, I'm thinking the DRO readout will probably bind on the beam if it is too far out of alignment.
-Trout
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