In this photo, still riding the pin centered on the sacrificial circle of wood, you see
the fourth and final baffle with the knife-edge cut by the v-groove
bit loaded in the router that
formed an approximately 5.75" clearing aperture opening. Also, in the
background on the stool, you can see the first three (3) baffles
stacked and ready for finishing for the Jaegers 6" f/10 "Gelinda J.
Dawson" refractor. I will pop out the center next and see what it
looks like.
NOTE --- What I thought was going to be
a big challenge cutting out these knife-edge baffles, turned out to be
good day at the job. The cutting
of the fourth and final baffle went much better than I had expected. The reason for my
concern, was that I had to route out a circle approximately 5.75" in
inside diameter from a 6.7"
baffle disk, which would produce a knife-edge baffle that only had a
.5" face! I thought the resultant knife-edge baffle was going to
crack or split under the strain of cutting it out with the router. I believe
my
decision to use Polycarbonate (Lexan) versus ABS or Plexiglas
(Acrylite) made the difference. Polycarbonate is definitely more
durable than the Plexiglas.
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