Re: ATM A cage as secondary holder

[Marinus Lugt <Marinus.Lugt@dss.dornier.dasa.de>]

Johan Vanbeselaere wrote:
> 
> I wouldn't make a whole secondary cage.
> If you mount at the top of each 4 spider vanes a screw
> connected to the cage you can do the same as you suggest
> but with less weight. Anyway good idea !

I also considered this, but I expect the collimation
to be much more difficult because I will use a wire spider.
This would make for a total of 8 screws to be adjusted. And
to rotate the secondary one would still need to reach inside
the lightpath. As well as for the distance secondary-primary.
Also when the wires are at a 30 degrees angle, it would make
collimation less than intuitive.

Rien