STUDENTS ONLY FOR ONE WEEK PLEASE. 06/12/11: Question now open to all.
So my Lackadaisical Designer (henceforth known as LD) just sent me the FINAL (yeah, right) light plot for our upcoming tour. Included are two angled sidelight trusses. Here's the SR one (reverse&repeat for SL).
Truss will be two sections of 10' Tomcat MD2020, weight: 85 lbs. per section.
Fixtures are VL3000Spot, weight: 91 lbs. each, but I'm calling it 100 lbs/ea to account for clamps, cable, etc.
Now the kicker: LD wants the truss to hang at ~45°, with the DS point at +30' and the US point at +16'.
How do I calculate the weight on each point (excluding suspension hardware)? If the truss were level (horizontal), it would be (2x85)+(6x100)=770; /2=385 lbs on each point. If the truss were vertical, the top point would take all the weight, 770 lbs. But what if it's halfway?
Venues are going to want the exact load per point. The house riggers will handle any bridles that need to be done, to accommodate house structural steel/points.
So my Lackadaisical Designer (henceforth known as LD) just sent me the FINAL (yeah, right) light plot for our upcoming tour. Included are two angled sidelight trusses. Here's the SR one (reverse&repeat for SL).
Truss will be two sections of 10' Tomcat MD2020, weight: 85 lbs. per section.
Fixtures are VL3000Spot, weight: 91 lbs. each, but I'm calling it 100 lbs/ea to account for clamps, cable, etc.
Now the kicker: LD wants the truss to hang at ~45°, with the DS point at +30' and the US point at +16'.
How do I calculate the weight on each point (excluding suspension hardware)? If the truss were level (horizontal), it would be (2x85)+(6x100)=770; /2=385 lbs on each point. If the truss were vertical, the top point would take all the weight, 770 lbs. But what if it's halfway?
Venues are going to want the exact load per point. The house riggers will handle any bridles that need to be done, to accommodate house structural steel/points.
Last edited: