TOS Federation class dreadnought

Converted from the sketchup file found here: https://3dwarehouse.sketchup.com/model.html?redirect=1&mid=eab3874ec56c4ae89f166d66ec4056dd&prevstart=36
Completing the Franz Joseph designs, this is the big boy, the Federation class Dreadnaught from the Star Fleet Technical Manual of the late 70's.

Note: Since originally posting this years ago, I've created my own, more detailed and accurate, version of the Federation class which includes additional variants like the movie era refit, along with Blender source files. You can find it here: https://www.thingiverse.com/thing:4893622