To attach the canvas I did not want the usual buttons so made a casting pattern and had diamonds made that have a protrusion for drilling and tapping into for a #10-24 machine screw. The canvas will have a 1/4" ID grommet that the screw passes through.
The fork ends are riveted to the tubing . I also machined the pins out of some 5/8" bronze rod.
The frame will be lashed back from the eye on the frame down to the cleats attached to the back of the cabin. It will make more sense when I get to sewing the dodger and post the photos.