4m diameter Circle Truss

[curatedplace]

Hi All,

I'm looking to get hold of a 4m diameter circular truss (or two) for hanging a cylindrical screen.

 

Doesn't need to be pretty or in mint condition as we're just using it to build a prototype for a multiple projection installation.

 

Any suggestions on where I might source one or be able to find one used (preferable at this stage) or new?

 

Thanks!

[timsabre]

Litestructures might have some bits knocking around, they would definitely make you one if not, but won't be cheap.

[savage1]

http://trusscircle.co.uk/

[ferretwrangler]

We have Global Truss Quad 4m in hire stock if thats any use to you

[TomHoward]

Just seen an ad for one sale on another group, will message the details

[IRW]

Hi Andy,

The company I used to work for in Liverpool certainly had something large, curvey and trussy on the shelf-

http://www.irwdesign.com/br/truss.jpg

I can't tell you exactly how big it is, as it never actually went out whilst I was working there, but I'd hazard a guess based on the size of the shelving (2.5m bays) and say it could be 6-7m in diameter?

 

Although looking at the larger version of that picture, I've got a funny feeling there may only be 3 sections, and I'm not sure how many would make up the circle! Let me know if you'd like the contact details.

 

Ian

[Jivemaster]

http://www.terralec.co.uk/steel_decotruss/steeltruss_circle_piece_1570mm_f3_metre/22189_p.html

 

ANy help?

 

The info says six pieces needed for a circle, the picture shows four. Ask what they have.

[ImagineerTom]

Just looking at that workshop picture I can tell you that A) it's a LOT bigger than 4m diameter - I'd say it's closer to 10m and B) there's NOT enough there to make a complete circle; if it was a complete circle the ends would be at a 120degree angle and those clearly aren't. Of course they could have other bits elsewhere to complete the circle but certainly what's in this picture isn't what the OP is asking for.

 

It's worth looking on ebay - smaller truss circles pop up fairly often under the exhibtion stand listings when companies sell off their expensive expo stands and don't have a clue what the constituent parts are actually worth.

 

To the OP - does it have to be trussing? You could get steel tube or scaff bar bent in to a circle (or 2 semi circles you join with couplers) for surprisingly little money.

[IRW]

Just looking at that workshop picture I can tell you that A) it's a LOT bigger than 4m diameter - I'd say it's closer to 10m and B) there's NOT enough there to make a complete circle; if it was a complete circle the ends would be at a 120degree angle and those clearly aren't. Of course they could have other bits elsewhere to complete the circle but certainly what's in this picture isn't what the OP is asking for.

 

Fair do's...Just thought I'd drop it in, as it's relatively close to the OP's location.

 

Edited to add:

Actually, thinking about it, and looking at the picture again, I bet it's only a half circle, and a massive one at that, so completely unsuitable! Sorry!

[kerry davies]

I think for screens I would go with Tom's suggestion and get four ali scaff bars formed and use internal couplers to join them up.

 

Suspending them would be a bit more bother than trussing but size, weight and cost would be an awful lot less than trussing of whatever profile at 4m diameter. I once had a truckload of steel formed into curves for very little cost at all. Certainly less than half the cost of the tube.

[top-cat]

I don't suppose either of you considered he might be asking for truss due to loading, a particular method of attachment to the screen, etc?

 

I just find it funny, the guy asked for truss, why are we so object to recommending truss? It's like somebody saying "any hamsters for sale?" and you saying "why don't you buy a goldfish? it will be cheaper"

[ImagineerTom]

Well since he's just asked for "truss" rather than specifying 2, 3 or 4 chord truss (which certainly suggests he's not got a particular rigging or fixing requirement), he's said it's condition doesn't matter (which suggests that it's not under any significant weight or duress) and that he's using them to create a cylindrical projection screen (which isn't going to present any significant forces or loadings) and since plenty of other people have suggested truss suppliers AND the op is an art-experience curator rather than an LD I'm not sure what the harm is in pointing out that there's a much cheaper, easier solution that he could get from just down the road rather than having to trawl the country for a highly specialist, over-spec'd, incredibly expensive solution.

 

Most people are un-aware of just how cheap tube bending/forming can be or just how strong the finished product could be, it never hurts to give people options to do the same job for less hassle.

[jono1]

If he the op is happy to hire, then call just about any hire company and they will source you a 4m circle. They really are not a rare item and don't cost too much to hire.

 

If you wanted to buy then watching eBay (if you don't have a deadline) is a good idea as there are often ex install circles on there. some sections of Ali bent and joined with internal couplers may also work for you. We use people like http://www.tubeform.co.uk and it's not expensive really.

[top-cat]

Well since he's just asked for "truss" rather than specifying 2, 3 or 4 chord truss (which certainly suggests he's not got a particular rigging or fixing requirement), he's said it's condition doesn't matter (which suggests that it's not under any significant weight or duress) and that he's using them to create a cylindrical projection screen (which isn't going to present any significant forces or loadings) and since plenty of other people have suggested truss suppliers AND the op is an art-experience curator rather than an LD I'm not sure what the harm is in pointing out that there's a much cheaper, easier solution that he could get from just down the road rather than having to trawl the country for a highly specialist, over-spec'd, incredibly expensive solution.

 

Most people are un-aware of just how cheap tube bending/forming can be or just how strong the finished product could be, it never hurts to give people options to do the same job for less hassle.

 

I do agree in that normally where there is a specific requirement, that requirement is more specifically communicated.

 

And I do agree people often don't realise you can get curved scaff etc. (or how cheap it is) I don't know why people seem to think you can roll a tube into a circle when it's welded to 3 other tubes... but not by itself...

 

I just meant sometimes on this forum people try so hard to make an 'even better' recommendation that they overlook the actual question altogether and sometimes it's best just to answer it...

[kerry davies]

..... we're just using it to build a prototype.......

 

Hmmm (TM Ynot) that "reading the OP" is an interesting concept, think it will catch on?