Quote Originally Posted by curious aardvark View Post
thought that was what I did by using modules - but please explain. I am using loops with modules. No clue as to how you render one bit and then use it in another bit.
In the latest release of OpenScad... Goto File/Examples/Advanced/Children.scad

I think there is a good chance you can do what ever size and complexity you want using that way to structure your code.