Looking at joining the wings. I have made up the wing jigs and presented the halves to each other. There is a large gap on the underside of the root ribs when the top portion is touching - maybe 1/8". I used the rib guage to set it up so I had expected a much better fit.

I wonder are the ribs supposed to be perpendicular to the spars when flat on the board or is the rib jig supposed to set them up so that when the dihedral is in the ribs are vertical? Alternatively I have use the rib guage from the wrong side - if this is the case the instructions did not even mention this.

Anyway, I will need to sand the root ribs/spars to obtain a stress free gap free glue joint.