Hi Rod,
Thanks for the advice! Gave me some points to ponder, for things like the flex rocker and the number of truss tubes.
I wasn't show sure if how will a 6 trusses perform as opposed to the recommended 8. Is there a logic behind it?
And what about the single upper ring. Will it sway or stressed under the tension from the truss tube? Design wise, it sure save a lot of space, but performance wise?
I came across Bruce Mills 20" F4 telescope at
http://www.freewebs.com/brucemills/2...4telescope.htm
seems like a great design... no wood! :-P