Rigging Truss

[Andrew C]

Close enough but the reason for telling us is...?!

See post 10 in the thread. Are they heavy?

[damian666]

many apologies, not concentrating!

on the subject (trying to hide error!!) they aren't too hard to move about really. trick is to not have all the chain in the bag/hanging off the hoist, which then takes off 30/40kg of chain from what you are humping along a catwalk! with 2 people doing the moving/rehanging etc they are absolutely fine. moved enough to know!

[Chris Higgs]

A little

 

This is going to come as a very random question something I should know, but having been spoilt with the likes of Vertigo I have never needed to know....

 

People say unlike chain hoists the motor is not needed at a large height, so my question to you all is how is the motor/chain rigged at such height then???

 

Sorry for the stupid question.....

 

Maybe this was to do with 'stingers' - when (typically) a steel is used to lengthen a (motor down) chain so a shorter chained motor can be rigged to a roof point whilst the motor is still in the case. Trusses quite often do not need to climb more than 10 - 15m and as such it is easier to hang them this way. (15m motor chain plus 10m steel = 25m rigging point)

Only when rental companies needed to stock motors capable of being used in arenas, theatres, on ground support, etc., did we end up with 20 - 30m chains. It is easier to run a fleet that way.

 

In the old days, grump, 50 foot motor chains (a foot is about the same as 30.5cms, but a lot easier to visualise...) were the norm at L&SD, for example, for that very reason.

Grump ends.

[Pete McCrea]

Are big motors/Lodestars a big heavy to heft around catwalks etc?

 

That's why! They're not exactly something you pick up in one hand.....Unless your a BIG burly rigger. But as mentioned above wit htwo it becomes easier. I can lift the motor, and then drag the chain, but that isn't a)good for my back and b)good for the chain.