The scale is related to how far in you are zoomed into the
model; if you're zoomed closer the graduations are smaller, zoomed
farther away the graduations are larger. However sometimes it's
unintuitive, like when there are ten graduations between major tick
marks yet it's scaled every eighth of an inch. This means the major
ticks are at 12.125 rather than 12.000. Is there a setting for this
that I'm missing?