Very good ideas thanks. I have what I think is a cool design idea for the beams an elliptical shape. Kind of like a fat flying saucer. I’m going to have a friend at work draw it out in Cad. Do you think cardboard is better then PVC? I want to be able to duplicate my work if I need to.

Couple of question any line on a supplier for cardboard tubes? Interested in the Air bag what do you use, any picture of the set-up?