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This old timer at a job site in Cleveland made me rethink my whole approach to rigging.

I was setting up a tricky lift for a steel beam last month, using my usual nylon slings, and he just shook his head and said, 'Kid, for that angle, you need wire rope chokers, or you'll see a 40% drop in your safe working load before you know it.' He drew the math on a scrap of plywood with a grease pencil, showing how the sling angle changed everything. Anyone else have a simple rigging rule they learned the hard way?
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4 Comments
riverh49
riverh492mo ago
That 40% drop is why I always eyeball my angles now.
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riverh49
riverh492mo ago
Just mark your start and end points with tape, the line between them is your angle.
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blairc90
blairc9010d ago
So you're telling me the best angle-measuring tool on the market is my own ability to squint at a wall? That's pretty impressive for a technique that relies on "looks good enough" as the main metric. I guess when that 40% drop hits, you don't need no stinking protractor, just a good eye and maybe a bit of luck. Honestly, I've seen enough crooked shelves and leaning fences to know most people's eyeballing skills are a little optimistic. But hey, if it works for you, who am I to judge your tape-free, math-free lifestyle?
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smith.parker
Wait, you eyeball them after that?
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