Thank you for contributing Oskar, and thanks to Bill for asking you.

There are of course a million questions which we would love to ask, but if you could see your way to answering just one more, I would be much obliged.

I can envisage from your description how the curved bar operates, but I would love to know
A: the (approximate) radius of the curved bar ?
B: do you form the curve by laminating or heat-bending ?
C: is the intersection with the X bracing formed by notching (similar to the center- X brace joint) or is it a butt joint ?

Murray