Installed in the Bosch laminate trimmer/ router is the router bit I
will be using to cut the knife-edges into the baffle disks. It is a
carbide tipped v-groove cutting router bit that has a maximum cutting
width of 9/16" and a groove cutting depth of 9/32" before the flat
side edges come into play. The maximum depth cut is perfect in that it
will cut through a 1/4" thick piece of polycarbonate creating a
45-degree beveled wall before the flat sides of the bit ever makes
contact with the top surface of the polycarbonate (see cross-section
diagram
here). Using
this method will create an accurate and sharp knife-edge in each of the four (4)
baffles; thereby creating a high contrast producing environment within
the OTA during observing.
Next, I will install a Jasper circle
guide that cuts smaller circles than the previous one. Great for
cutting circles from 1" to 7.5" diameter, perfect for this
application.
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