An unusual job came along this week. Some clients of mine, who are incredible musicians and performers, are preparing to record a live concert to be broadcast on PBS later this year. There's a lot that goes into production of such an event.
My job was to build a large platform that would hold the 'jib' camera. That's the camera that has a 30' boom arm on it to get those sweeping-long-angle shots. The platform would be 9' x 9' and need to support 1000 lbs. It would need to be extremely stable so that as the operator moved it would not bounce around. It would also need to span 3 rows of theater seats and be level even though the floor is sloped.
Whew! What an order, eh?

The basic plan was to build two 4.5' x 9' platforms that bolted together in the middle. I would make it using 2x6 lumber with 16" spacing covered with 3/4" plywood. The legs would be bolted as well to make it easier to take apart and move.
I started by building the basic platforms. I added some braces across the middle where I knew the plywood seams would be. Because of the large size, a single piece of plywood would not span the entire frame.

I built legs for each corner as well as two at either end of the middle joint where the two platforms were bolted together with 1/2" carriage bolts. These center legs would hold the majority of the weight.

This morning I painted it black and moved it to the venue. At this point, all the legs were the same length. However, once it was set up in the auditorium I had a couple of guys lift up the low edge and hold it level, while I 'sistered' each leg with another 2x6, making them the right length to level the top.
I added an extra brace under the middle to reduce the 'wiggle', but now it's ready for action.
If you're in the area, I hope you'll check out Annie Moses Band on July 9
th at Lipscomb
University's Collin's Auditorium (more info on their
website). If you miss that, you can catch them on PBS this winter.
All brought to you by a special camera platform made with love...
-Peter
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