Well i finished up in the prototyping lab, and got the secondary holder and vanes to a stage where i can test them out. If all is well then ill get them anodised and flat black for the vanes.
Oh and some explanation of the flats that i last posted. if you can see that in the first image there is only a small amount of fully illuminated area, where as the second one is a lot bigger. that is due to the increased secondary size!
i was happy to have something to quantify it.