Online Community of Zenith Builders and Flyers
Some pics of a simple jig for handling the varying angle of the fuselage bulkhead.
At the top the of the form the bevel will be 15 degrees and as it is rotated by 90 degrees it will decrease to 0 degrees. This roughly corresponds to a bent edge of 90 degrees at the top and smoothly changing to 11 degrees open on the side.
The jig is hot glued together and screwed to the form.