[ATM] Cell design and collimation stress

[mbartels at bbastrodesigns.com (Mel Bartels)]

>>>
 Any findings or comments on collimation bolt location and bending forces on
the mirror.  More specifically, in some designs the bolt presses directly on
the flotation system via the support triangles(for reference see Kriege)
while in other designs the mirror moves as a result of the bolt pressing
only on the cell frame and thus perhaps more indirectly on  suspension
points(Sayre, Gray etc,).
<<<

I don't see the distinction here.  The collimation or final support points
don't care how they are supported.

>>>
etc,).  From Mel's findings it would seem that pressure directed upward via
the triangles would exert more detrimental stress on the mirror than just
tilting the entire cell.
<<<

A mirror support point is only going to press upward at exactly the same
force as the mirror is pressing down.

Mel Bartels