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Thread: Mounting lasers on stage

  1. #71
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    Quote Originally Posted by Adrian Cavaleru View Post
    The stand is quite good, for big set-ups. Will it fit on your car? What about if you have 3 projectors?



    Taken last Saurday, my 3 projectors, 1 tripod, brought to the event in an Audi A4.

    No wobbling, 60k sound and no vibrating fuzzy beams, still square on the bounce mirrors 60 feet away after 6 hours.

    No problems, promoters happy, paid in full with thanks.

    As already stated; I wouldn't use it on a timber floor.









    http://img62.imageshack.us/img62/3985/laser.gif

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  2. #72
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    why you did't use the truses on the left and right for 2 projectors, leaving the center with only one?

  3. #73
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    Looks great Doc! I have to ask... were you part of a DJ forum like say 10-15 years ago or so. I remember a member "Doc" who talked about his lasers. Just when I started to gain my fascination for them


    EDIT:
    Adrian... although Doc could give you a definitive answer, I'd guess either the promoter/client wanted it that way -or- the truss is from a seperate company (sometimes they are finicky about letting other people hang of their gear) plus you have to work on their time and dont want to wait for them to tear down towers so you can get your gear -or- maybe a system limitation cable length constraints -or- (finally) personal preference, I think it looks really good! Doc, I like how it really draws your attention to the DJ booth, after all that is what the show is about, the DJ.

    Again Great job!!!

  4. #74
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    Quote Originally Posted by Adrian Cavaleru View Post
    why you did't use the truses on the left and right for 2 projectors, leaving the center with only one?
    The trusses are part of the venue's fixtures, I had a 1 hour window to set up, the venue has a scissor lift but I don't have a scissor lift license, UK health and safety law doesn't allow working from ladders except for the construction of scaffolding.

    The venue's health and safety manager certainly wouldn't allow anybody to stack up flight cases to use as a makeshift platform for a laser and neither does BSEN 60825 (or anything else other than their intended use for that matter i.e. safely transporting equipment).

    This venue is owned by a university, universities take health and safety *very* seriously, as do I.

    @ mliptack; I have been active on the DJ circuit for for over 15 years, but I have only been active on DJ forums for maybe 8 years and only been operating lasers for 4 years so it must have been somebody else .

    Thanks for your kind words about the setup
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwin’s natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





  5. #75
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    ?


    ...then there are these:

    Just another option.

    -Jonathan
    Last edited by platinum; 01-23-2012 at 14:58. Reason: link upkeep

  6. #76
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    Hello!
    Stands are really nice, but you should add trusses on the stands and hang up the projectors with half couplers like we do on our shows, becouse with that you are more flexible...
    Mostly we do shows where are finished Stages (we say what we need before the stages are gonna planned/stand up) and got the place, so we mostly didn´t need own stands, only the halcouplers,etc. for hang up and safe the Projectors :

    It was a bigger Location than it looks on the fotos, the projectors on the higher power level, 6 projectors (on the one Pic only runs 2).
    http://img36.imageshack.us/i/bild1cm.jpg/

    http://img30.imageshack.us/i/bild13la.jpg/

    http://img4.imageshack.us/i/bild15m.jpg/
    Greets,
    Phil

  7. #77
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    UK health and safety law doesn't allow working from ladders except for the construction of scaffolding
    Someone is misinterpreting the regs here.

    There are many threads on the Blue Room forum in the rigging section about use of ladders and the reality of the regulations.

    Doesn't the statement that using ladders for anything other than setting up scaffolding is illegal strike you as a little daft?
    Last edited by norty303; 10-23-2009 at 17:41. Reason: spelling

  8. #78
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    Quote Originally Posted by Doc View Post
    UK health and safety law doesn't allow working from ladders except for the construction of scaffolding.
    Cite please!

    My copy of the work at height regs says that ladders should only be used where the work of of short duration, and where work is not excessively heavy,not that they are only allowed for the construction of a scaffold structure.
    Sure a tower is safer (and therefore preferred) but if you are just hanging a light on a truss then a ladder is a legal approach.

    That said, in a one hour build, I would be very tempted to go totally self contained, it is often a much surer thing.

    And yea, universities tend to have funny rules that would never fly in a commercial venue.

    Regards, Dan.

  9. #79
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    Quote Originally Posted by DMills View Post
    Cite please!

    My copy of the work at height regs says that ladders should only be used where the work of of short duration, and where work is not excessively heavy,not that they are only allowed for the construction of a scaffold structure.
    Sure a tower is safer (and therefore preferred) but if you are just hanging a light on a truss then a ladder is a legal approach.

    That said, in a one hour build, I would be very tempted to go totally self contained, it is often a much surer thing.

    And yea, universities tend to have funny rules that would never fly in a commercial venue.

    Regards, Dan.


    Ladders are permitted for access and egress from your place of work, but they are not legal for the task we are talking about here.

    This brings is one of those situations that can come back to bite you. Yes on the face of it, glancing through th PUWER regs it might seem that the use of ladders is permitted, but, and it's a big but (like J Lo) that old UK common law phrase will bite your arse once again; "when it is not reasonably practicable to use any other potentially safer means and the Risk Assessment shows that risks are low" (from WAH regs). I challenge you to stand up in court after you've just tried to carry a 60lb projector up a ladder using one hand, dropped it and killed somebody and explain to the judge that 1/ the risk was low! and 2/ portable access towers aren't available in Manchester yet.

    In either case; you are scewed. like I've said before and I'll no doubt say again; UK law is largely based on common, not just statute law, this means that it is contencious and open to interpretation. The main phrase that you have to keep in mind is "so far as is reasonably practicable"

    Is it reasonably practicable to grab any old ladder to save somebody from a burning building? I'd say yes. So would a judge.

    Is it reasonably practicable to hire a portable ally tower for 38 quid to install heavy equipment at height? I'd say yes. So would a judge

    I've mentioned a couple of lines from WAH regulations, you also need to consider PUWER regulations Workplace Health Safety and Welfare regs, Manual Handling regulations (they'll definately get you this one), the big overseeing one; The Health and Safety at Work Act (the statute law part) and no doubt several other regs that I haven't thought of.

    This is why for our intents and purposes; ladders are only suitable for access and egress, anything else is unwittingly breaking the (very contencious) law.

    In summary; it is legal until you have an accident, the you're screwed by common law.

    Ian
    Last edited by Doc; 10-24-2009 at 00:19.
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  10. #80
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    Quote Originally Posted by norty303 View Post
    Someone is misinterpreting the regs here.

    There are many threads on the Blue Room forum in the rigging section about use of ladders and the reality of the regulations.

    Doesn't the statement that using ladders for anything other than setting up scaffolding is illegal strike you as a little daft?
    With all due respect; no, I'm not misinterpreting the regs, I am experienced with and Veritas trained for dealing with these regs on a daily basis.

    That is my point; on the face of it you're not breaking any statute laws, but you are unwittingly breaking several H&S guidelines, which means that as soon as somebody gets injured or somebody's property gets damaged then you have broken amd will be charged under common law, which unfortunately means big fines, prison or both.

    You can still end up in serious trouble for a "dangerous occurence" that is; somebody nearly got injured or somebody's proprty nearly got damaged!

    The HSE have the power to stop the police from working.
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwin’s natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





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