[alistairsam]

Hi,

I'm thinking of getting a 12" F4 mirror from GSO and constructing the OTA myself. I'd be using it for both imaging as well as a visual scope on a Dob Mount.
F4 as it'd help with imaging as well as keep the OTA length manageable for portability and as a wide field scope.

The mount would be an equatorial fork mount.
I'll be using a 2" 10:1 crayford, and a wire spider.
haven't thought of the mirror cell as yet, but I can get aluminium parts machined at a local machine shop.
I have most of the tools required for woodwork though.

I'm not an expert but am handy with building things and am not targeting at building a high end scope.

any suggestions on the OTA design or what factors I should consider before thinking of the design?