Bob
):-{])) <---- madden@netcom.com madden@svpal.org Remember amateur astronomers: "keep looking for the next Universe"
On Tue, 18 Apr 1995, Dean Ketelsen wrote:
> I like the idea of a set of "hard points" to define the axial
> position of a mirror, but don't like the idea of having a metal
> point contact on the back of the mirror. Any sharp impulse
> could transmit directly through the bearing and possibly damage
> the back of the mirror. Is there a chance of using nylon or
> delrin balls? One guy's opinion...
> -Dean
>