The thread about spreader bars reminded me of this. I just found the pics. This is a building I built several years ago. I had the bars built for this job. What do you think?
Dude, that is sweet! And this is for all those who don't think they need to know math, that's geometry in action! That looks like a Grove crane, what model is it?
It was a Grove Not sure about the model, it has been to long ago.