With the drilling, alignment and test fit of the objective lens cell
components to the main tube complete, let us traverse to the business
end of the telescope to begin drilling of the holes for attachment of
the focuser backplate to the main tube. As I did with the rear lens
cell, I will use the focuser backplate as a template to establish and
mark the location where I will be drilling the starter 1/16" holes in
the main tube. Why initially a small bit? This is because it increases
accuracy. With the small holes drilled, I can increase the size of the
three (3) holes by using progressively larger bits, until I get to the
1/4" final size, which turned out to be three (3).
|
|
