I've looked at N.Webbers solution and while it is simple, safe and problably not too expansive it fails in three points, you have to be two guys to rig the underhanging cab (that is if you don't put the cab on something to hold it while you fix the wires in his design), the equipment that he uses is not very easy to find and if you wanna angle more than one cab the underhanging angled cabs front will overlap the overhanging ones front.
I've tried to overcome these three problems and what I've comen up with is this:
It is basically two brackets on each side of the DRs, as you can see the front bracket has a cutout at the bottom hole, this allows the rigger to slide the cab in place and hold the back of the cab up while fastening the back bracket. The front bracket has two holes for the upper cab which will get the underhanging cabs front alined with the cab it's attached to. To secure the cab from sliding out of the front bracket one could just wrap a strap around each sides brackets or one could use something like this:
The brown piece is the bit holding the cab up, the black thing that the bit goes through is the front bracket and the L-shaped piece is the piece that prevents the bracket from sliding forwards. The brown bit would have to have sprints on both ends of it to prevent it from slipping out of it's place. The bit would have to have a bit smaller diameter than the holes to make up for any small measurement faults during the construction.
Ofcourse one could leave out the slits in the front brackets if they have a two man crew.
This shows what I'd thought of how to fasten the back brackets:
Then you need to fasten the array to something:
This array socket has to be engineered and a lot of measurements has to be taken care of but the main concept will probably be a lot like it.
Or you could have an assembly like this one if you have a long J-array and want to take a load off the brackets:
The truss piece will in it's turn be underhung from another piece of truss.There is a major concern though; There must be MINIMAL faults in measurements and some angels or else this will go all wrong.
To make it as accurate as possible you have to make every side of every cab exactly the same. This can be done by making all sides separately and by making the holes in the sides pre-assebly, all holes being measured out with a jig. You'll get the idea with this:
After this every side must be angled the same on the cab, this should be fairly easy done by laying the cab on a true flat floor with the mouth down so that the sides will sit on a same angled surface. After that the sides has to be mounted fairly equally placed so that the cab won't be tilted to the right or the left once it's hanging.
All hanging equipment must be made of metal, I don't think that plywood or any wooden material would meet the required strength. The concept should be fairly easy to construct as long as there is a company nearby that can make the brackets. The cabs are not a part of the hanging construction, they are only attached to the brackets.
No measurements or strengths of anything have been written yet as this has to be carefully engineered.
This is merely an idea thrown out to you.
What say you?
(well, that is until I need more than three of anything per side)
