To the right you can see the handy-dandy little hole locating gage that I made for trunnel hole layout on the lattice web intersections.
Had you been working with me you could have pointed out the folly in this before, I learned it the hard way. You can see that the top hole is way too close (actually 3/8" in 3/8 scale) to the edge of the material. Arnold A. Graton advised me to keep 2" ( that's 3/4" in 3/8 scale) of material beyond the outside diameter of the trunnel and the edge of the piece. The bottom hole is the way it should look.
Puzzler - Since this truss must now be un-clamped and removed from the false work for transport and installation of the trunnels how would you mark the pieces?? Keep in mind they must be reassembled exactly as they were drilled or the trunnel holes will not line up properly. Flip, flop or flip and flop (there is a difference) one piece and BIG trouble.
Tech Vocab - Flip - Flop - Flip and Flop - Lead Screw - Back-up Block