Quote:
Originally Posted by clive milne
Phil... by what mechanism is the force applied by the mirror support pads (on the back of the mirror blank) equalised?
|
The mirror edge was supported above the cell at 3 points whilst the support glide bases were built up with a type of silicon inside hollow felt pads as the bottom plate of the mirror is curved the same as the top. It was a slow process but when completed the 18kg mirror contacts all glides and can be easily rotated with my little finger. I decided to do this to keep the profile as low as possible and add little extra weight. Not until I start processing planetary images in good seeing will I know if it was worth the effort or successful.