These are some ideas of how I'd like to make the body segments for the giant ant. This one is from the motorcycle fender. I had thought of cutting out notches in the metal to let me cinch it back together in a tighter arc. And then it would be welded onto the frame.
These are the joints and base fixture sketches. The leg joints didn't quite end up this way, but the body/leg connector and the base connections should closely resemble the sketch.