On Tue, 8/6/13, TJoseph Powderly <tjt...@gmail.com> wrote: cosine err? the motion of the axis must be colinear with the motion of the scale theres a few pages supplied wiht all Heidenhain scales describing the mounting techniques and qualifications. i could assume this has been verified, but it would explain motion that returns to same point yet has constant distance err regards tomp If the scale's not mounted perfectly parallel to the motion axis but is close enough so it doesn't bind as it slides, that would produce an error that's linear and always repeats exactly. But would it produce that much of an error?
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