Just to update the progress:
Some interesting photos of welding the arch:
Julian & Mark working the arch
The unique complex 3-D curves to the rear leg piece needed very accurate cutting, I decided this required a full size template test, leading to a full size model in thin 3mm MDF, allowing the drawings to be fully verified as accurate before cutting the metal.
Full size MDF rear leg piece by Mark Stammers
Some photos of the assembly of the model:
Julian with the full size model working how we assemble it
More drawings of the curves:
My rear leg piece drawings for cutting the metal
It is worthwhile looking back at some of the model making:
There is also the side loop to make, this has gradually become more taught and like my original drawing at each stage of working the models, the full size piece in MDF was a good test of the workability of the material and limits of flexion that could be expected without hammering the mirror finished surfaces.
Checking out the side loop and with all the main pieces ready its time to move the sculpture to the engineers for final assembling and finishing.