I have just "inherited" about 1000kg of 300mm I beams that I am going to use for the base of my observatory... if I can cut them
That should give the dome a nice firm base to ride on. I might add, it nearly killed me getting them on the ute.
(So glad I learned about levers and rollers as a kid.)
Doing the calculations at the moment and reckon I can get a 3.5m to 4.0m octagon out of this lot. I guess that will equate to 8 rolling surfaces.
Fogive me for I know not what I do.....
