© 2008-2009, Brice Burrell
Page 48
The next step is to set the insert to rout the proper size circle, the pivot is already installed.
Before we move to the next step, let me explain the set up process in detail. The insert is set using
the scale on the MFS profile and the insert's own scale. The insert's scale is not centered on the hole
for the copying ring (see picture above), at first that doesn't seem make much sense. But remember
the pivot is offset from the profile's scale,
this accounts for the insert's offset scale
(say that three
times fast). Now, take into account the bit, its cutting edges are offset from the zero point on the
insert. I know, a lot of offsets here, so let me show you a couple of drawings to help clarify things.