I would like a model designed to show my concept involving a "jib crane" type of structure that extends 20 feet and is 8 feet high. If you are unfamiliar with a jib crane, here is a link .[url removed, login to view] I will attach an EXTREMELY BASIC picture that I made on paint. I basically want to show 4 of these "jib crane" type structures that are 8 feet high by 20 feet in length that each are holding up 5 "heavy bags". (100lb boxing bags) eg. [url removed, login to view] The bags are 6 feet long so should be farely close to the ground since they are hanging from a 8 foot hight steel structure. The "jib crane" steel struture should be spaced 4 feet apart. They model should show that the arms can be moved at a 90 degree angle so that they are stored very close to the wall. Two Arms should swivel to the left and two should swivel to the right. The two inside "jib crane" structure should be 6 inches in front of the outside structures so that they can swivel all the way to a 90 degree angle without hitting the outside structures. A plane wall can be the backdrop and a concrete floor and be the floor. I will attach the simple drawing, but more accuracy can probably be taken from this description.