Our mirror is a conical with an outer edge thickness of about 0.75" and a central hole thickness of 2". Hole diameter is 4.5"
The diameter of the flat on the back is about 7 inches and the 6 leveling pads will rest there with the Mirror support tube going through the Mirror's hole and contacting the mirror with a nylon O-ring at the center of gravity of the mirror in cross section.
This will restrain the mirror from any lateral movement and not put any uneven strain on the mounting location.
Not shown in the rendering is the threaded locking ring that will retain the mirror to the collimation plate. The area that will contact the mirror will be cork lined and little if any torque will be applied.
The baffle will adjusted independantly from the Mirror tube.
This should keep collimation very well, as I've used a similar system on my 10" RC "The Unfinished Telescope", by Paul Van Slyke. I learned a lot about what to and not to do from working on that scope.
How is your build coming along?
Regards,
Preston
-------------------- A few I enjoy,
and a few more in the works ;<)
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