Quote:
Originally Posted by bmitchell82
Like i said mate easy calculation
You can presicely evaluate the balance point with a bit of algebra and solving the equation to = zero ill write it up later for you and post.
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thanks, but wouldn't you need estimated weight of the upper and lower sections as it can vary a lot depending on design and materials?
any recommendations on the primary mirror?
the standard grade from orion optics works out to around $1,000 aud for the primary, secondary and shipping.
the gso primary and secondary is cheaper but i'm not sure if they have F4 mirrors by themselves.
else, i could get the 12" F4 ota at Andrews, get rid of the tube and use the focuser, mirrors and secondary holder, but that's quite wasteful.
not sure where else I could get 12" F4 mirrors for under 1k.