[ATM] Conical Mirrors

[peter at kitgear.com (Peter)]

All this talk about innovative ways to eliminate the sling is quite
refreshing. SCT's have already solved this problem by using conical mirrors
with a central hole. The mirror is basically supported by one bolt and no
sling. If done properly the conical cross section of the mirror makes it
stiff and will support itself throughout the vertical to horizontal motion.

Seems like a good solution but you'll have to give up those laser
collimators.

Any comments??

Peter