I'm still guessing it's for hanging with conveniently reasonable speed, security and electrical conductivity for a quick trip around the powder coating line. Powder coaters want to be able to hang and extract items quickly on the fly, with one hand whenever possible and the line still moving, to make reasonable electrical contact and not fall off into the over spray where things need to be raked out and collected prior to recycling as much of the unused overspray as possible. You've got to know powder coaters recycle as much black as they can manage whereas they need to invest somewhat more time, effort and care into recycling more pristine colors such as polar white or any of the pastels where subtle blemishes would be more readily apparent. We had one coater in our area who'd bid much lower pricing if you'd take your products in black, ideally the precise black he was primarily running. He liked to keep one of his lines running black 24 / 7, just keep loading in the products and raking in the money.
Thank you. My last e-mail from Mr. Dale was dated Friday February 19th 2016 thus you may be a little off when you say "at least a year" as he was definitely writing me on behalf of Altman at that point. Close still wins the cigar.
Personally, I'd far prefer the safety to loop over the pipe / supporting structure. I suppose "they" can loop it through the clamp as well but it's feeling like more of a time waster than a benefit. I can understand this more with machined aluminum clamps and conveniently larger diameter holes in film / video location shoot / field applications but I'm yet to envision any serious benefits with dozens of instruments lined up on 18" centers in neat rows on fly-pipes in theatrical touring and / or 'house plot' situations. I'm probably just being my decrepit 'stick in the mud' self but that's my personal opinion.I can't imagine how Altman is doing this that the hole doesn't somehow decrease the structural integrity of the clamp by a significant margin. This is their 510-HD heavy duty clamp.
Think of a crinalted beam - like at United terminal at OHare. It's the edges that do the work.I can't imagine how Altman is doing this that the hole doesn't somehow decrease the structural integrity of the clamp by a significant margin. This is their 510-HD heavy duty clamp.
I did - Jason and Nic - no response yet.Anyone ask their Altman rep. yet? Do I need to in being busy with other projects at the moment? I would also consider this to be within the web of the clamp flute and not structurally a problem. Perhaps a way to hoist the fixture up to a batten in the least having to lift the light type of way? Perhaps a tie off for dressing the wire electrical cable whip? I would say ask the manufacturer, and also ask them why they are not part of the forum in otherwise directly answering them and advertising.
Great photos above, but larger holes to fit a safety cable. Interesting though that HD clamp hole in size verses concept of the HD clamp. Safe enough no doubt, but a lot of material removed in the meat area without expanding the size.
Back to school, a hole should be no closer to the edge than 1/2 the diameter as a rule. But these are cast clamps and seemingly wider in compensating.
You've worked "worked in event lighting for a decade and in lighting for over 20"? Over 20 decades!!!? At 200 years plus, just how old are you and when does your deal with the devil expire?I have personally seen many clamps "fail" that were inappropriately clamped on 1" pipe or slipped off a truss condom. In this case user error was at fault. Given the ridiculously rare incidence of clamps actually shattering (worked in event lighting for a decade and in lighting for over 20, I've seen one actual break and tossed a few for cracking/stretching etc. as opposed to dozens for rust) these holes may be targeting a more common failure (slipping off the pipe) while keeping the cable as much out of the way of the user as possible.
We use essential cookies to make this site work, and optional cookies to enhance your experience.