I modified the rod supports on the jig. The method I used put the rods at 2 1/2" above the work surface. That left the bottom edge of the ribs at least 1 3/4" from the surface - pretty tough to secure them in alignment. Also, there was just enough tension on the ribs holes that any movement might result in breaking the ribs - not a good thing.
To resolve both problems I drilled holes at a height of 1 1/4". This leaves the bottom edge of the ribs within 1/4" from the surface. Slots were cut from the top edge to the edges of the outer edges of the holes allowing easy removal / installation of the rods with ribs installed - thinking about when I need to flip the wing over. There is very little tension between the rib holes and the rods. Makes positioning much easier.
TTFN,
And, of course, Ihad to cut down the material across the top so that I could fit the main spar. But you already knew that.
3rd time is the charm!
Pic 4 &6 - shows the root &tip support with a flat hardwood clamps that keep the rod tight to the supports.
Pic 5 - shows the center support trimmed flat so that it cannot influence the lateral location of the rods yet provides vertical support.