I designed these two elements according to the drawings and positioned them according to the drawings, and….bam, doesn’t fit:
Problem is, the diagonal struts collide with the upper and lower strips of the bracing wall. And looking closer at the drawings I found that they cannot fit as the strips all run at basically the same height. I wouldn’t be surprised if each and every builder of the SG-38 ran into this problem. The solution is either quick and dirty -> forcing the struts under the strips and thus compomising in stability, or having to rebuild the bracing wall completely. One third solution is possible: The drawings I have are rather foggy from the copying process. So I might have misinterpreted some of the dimensions.
Anyway I redesigned both walls and stretching everything a bit and I was able to sufficiently squeese in the diagonals:
The opening that is visible in the wall is for the aileron control lines.