Started drilling holes in the first two ribs. Drilled the holes a fraction smaller than the final size, probably to be on the safe side as its not easy to drill exactly in the middle and I don’t want to damage the side of the rib with the drill. Especially with the 1″ hole where I am using a 7/8″ timber “hole saw”, that one always cuts a bit rough.
I think I am better of using a file to finish it, then going wrong in the process drilling. I only need to do half the hole as I am cutting away the “outside” of the hole. Will show you tomorrow !!!!