Thanks. I ended up cutting the Y arms down by two inches each after I took that picture. They were the correct length at the time but the antenna resonated down around 27 MHz and by the time I shortened things up enough to get it to resonate outside the CB bands, the wire would no longer fit around the frame.
If I had it to do over again, I'd use a smaller diameter pipe as well. I used 1-1/2" Schedule 40 PVC thinking it would make it rigid enough that it wouldn't require any extra bracing to keep the boom from sagging. It sagged anyway so it turned out to be a few wasted bucks, as well as some unnecessary weight. It is hell for stout, though.
Nice—I think I'll try building one for six this summer. I could easily stack it on top of the 10m antenna.I've done 6M moxons from some scrap 3/4 angle aluminum left over from a work project.
I took some supplies to Field Day one year and built one from scratch on the tailgate of my truck with some of the newer hams. I replaced it a while back with a 3 element Cushcraft but I'm not convinced that the store bought antenna has been any better than my home built antenna.
I've become a fan of Moxons after Gordon, AE6QW, and I built a 20m Moxon out of 1/2" Type M copper for Field Day last year. The thing looked like the aftermath of a boiler explosion but, damn, it worked great.