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Alignment
of the holes to attach the RA Axis Support Housing between the Truss
Arms is very critical to accuracy of the mount. Here we see the left and right
Truss Arms stacked together and held precisely in place to be drilled to receive the RA Axis Support
Housing. To facilitate the location of the holes, I placed the RA Axis
Support Housing (with holes already drilled) on the clamped Truss Arms
where it will be installed and traced the holes onto the top layer of
the stack (see
photo above). Now, we are ready to go to the drill press (or you can use
a regular drill using great care to be precise) to drill the two holes.
BTW - We have not forgotten about the holes for the dowel-nuts. Holes
will be drilled for them also while the Truss Arm sections are clamped.
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