The Control Cavity
|Using the holes drilled from the front, I was
able to align the template for the control cavity. Here is the cavity template
raised above the back just enough to route a cavity deep enough for the plastic cover
plate to sit flush with the back.
I routed this with a pattern-following straight bit.
|Here is the control cavity with the "plate
recess" routed in to the back. Note the holes on the top plywood template --
they aligned with the holes in the body to align the routing template.
Also note -- this is the same template I used to shape the control plate out of black plastic from Stewmac.com.
|Next, I could "hog out" the remaining
wood in the cavity using a Forstner bit and my drillpress.
Be careful not to go too deep, and take your time.