Festool MFS Fence System Instruction Manual page 30

cept in corners where the
guide bushing used to cut
the female recess will pro-
duce radiused corners
while the male piece cut will
have sharp corners. One or
the other must be hand
trimmed for the male to fit
perfectly into the female re-
cess. This is usually not an
issue and can be done eas-
ily.
In our example, if we used
the 20mm diameter guide
bushing to cut the male and
a 40mm guide bushing to
cut the female, they would
fit together perfectly. The 40mm guide
bushing with a 10mm bit will plow a
groove that is 15mm away from the edge
of the template and 10mm wide. We
would route out all the interior leaving the
profile of the female recess that is 15mm
smaller than our template.
When we cut the matching male we just
put on the 20mm guide bushing. This
30
Sample of 1400 guide bush-
ings in different sizes
5mm away from the edge of the template
on the side nearest the template and
15mm away on the side furthest away
from the template, exactly the size and
shape of our female recess.
many router table applications), the bear-
ing needs to be mounted on the shank
end of the bit like the one on the right. If
the work piece is held between the router
time the groove will be
Using bearings on the router
bit instead of guide bushings
on the router base will pro-
duce a similarly predictable
result. The photo to the left
shows (left to right) a top
bearing bit the same size as
the cutter (called a flush trim
bit), a top bearing bit smaller
than the cutter (called a re-
bate cutter), and a bottom
bearing bit the same size as
the cutter.
If the template will be held
between the router base and
the work piece (as in most
plunge cut applications and