Quote:
Originally Posted by bojan
Hi Alan,
I hope the drawing and marked image is illustrative enough to explain how this assembly works..
There are 3 pairs of push-pull assemblies.
Push action is performed by upper screw (blue).
Pull action is performed by spring washers on the lower screw (red)), and they are tightened with nuts once the colimation is achieved.
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OK thanks.
There is a lot of leverage from those long bolts -
what stops the mirror going up or down when
the angle of the telescope is changed?
Surely the focus would change?