RE: Mojo 40 Build Thread
I put the root rib down and squared up the spar (both ways). I do like the tip about using scrap to align and pin the ribs; I will use this in future builds! Assembled ribs to bottom spar and glued. Since I was using TBII glue, when I came back after ~1 hour, I noticed the bottom spar had sagged and dropped down away from some of the center ribs. I had to cut away the areas and lift it back again. Obviously a down-side to wood glue but I can not use CA much.
Photos #2/3 shows top and bottom spars in place.
Photos #4/5 is after the LE and sub spars in place.
For the TE, I had to use CA as there was no easy way to pin it to those thin ribs.
Next was the shear webs. The instructions say to cut 6 but the blue prints say to install 4 on each side (see Photo #6). However, the details on the drawing only show 3 each side so I went with 3. I wanted the webs to be flush to the one rib so I just put the piece on the building board and marked to cut the top. This leaves the bottom extending over the spars (more as you moved out). I will just cut these when it gets flipped over. This seemed easier than trying to mark and cut the bottom too (see photo #7/8). See photo #9 to see what I mean about extending below the bottom spar.
Photo #10 shows progress to this morning.