BuckBlocks Rigging System

'When installed, the BuckBlocks Rigging System creates a basket style hitch which results in evenly loading the two legs of the sling.'

Any videos of this being installed from the ground?
 
Absolutely, and you are dealing with ball bearing based rollers instead of rings. Friction is almost completely diminished.

These are the same idea as the climbing version, which are absolutely gorgeous. The price point is what kills them IMO. The head technician of this project told me @ ISA they are working on getting price down.......wait and see I guess!
 
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But wouldn't the bend ratio be more friendly? At least better than ordinary fc rings?

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I looked at the buck blocks at the show in Providence. The bend radius, I'm only guessing, is about 1 inch. Makes for a 2 inch sheave. Though having the two sheaves side by side widens the bend out to nearly 5 inches. Still though the ultimate bend is on the outside radius, of around 90 degrees.

It's not a bad idea but for large ropes and dynamic loading it might not be so good. And maybe the bend radius at 90 degrees isn't a big deal on the rope.
 
I was playing with them at the show . Well designed . Alot of thought went into those blocks . Just write to Santa and see what happens.
 
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I was playing with them at the show . Well designed . Alot of thought went into those blocks . Just write to Santa and see what happens.

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Did they look easy to retrieve from the ground?
 
Sorry for getting this old thread back on the menu.

Does anyone here (still) use this device. I saw it uses magnets to keep it all in place, is that correct.

It looks like a great tool to use in combination with the GRCS to take smaller trees down besides bigger ones.

Any ratings?

Wolter
 
Found it. Three tons Work load limit, 5/8 rope.

Somehow the link to the Buckingham website in the first post wasn't working properly earlier this evening.

So the only question remaining is. Is anyone using this device?
 
Can you help me out here Prime. You probably got the owners manual/specifications chart when you bought it.

Just for me to understand, not to seek the limits during work.

Climbing ropes have a factor 20, In rigging I use a factor 10 and hardware factor 5.

This tool has a hardware part and a 'software' part. WLL is 3 tonns. So the metal part has probably a MBS of 15000 kg. What is the rope that is used and what are the specs. I don't hope it's high modulus material like dyneema that is used in that potentially shock loaded spot. What is the MBS on that rope, 30000kg?
 
You dont need to worry about high mod textiles in that scenario. Since in a normal rigging situation the rope runs up from the lowering device (LD), to the block (BL)and back to the load (LO), there is plenty of rope to absorb any shock load.

All the test data and hubub about high mods, mainly Dyneema/Spectra products was collected from doing factor 2 drop test on a completely static anchor. It is highly unlikely that anyone has ever had a factor 2 drop in tree rigging.

The point of the research that created this misunderstanding of how high mods break was to show rock climbers that the practice of doing moves while dogging on a quick draw was pretty unsafe. See, when you are lead climbing you have to climb from bolt to bolt, if working a project route, it can become very tiring for both the climber and the belayer. To offset fatigue climbers will connect directly to the wall with a lightweight sling, enter Dyneema. Some belayers, out of laziness will take the climber 'off belay' while they are 'in-direct' or fixed to the wall with the sling. IF during this time you decide to climb up and 'try' the move and you go 2 feet above the bolt, connected with a 24" sling, and fall; well then you die.

Fall factor is a method for determining the multitude of the loads weight that the rigging needs to absorb. If you but catch a log and the knot is 2' above the block then the LD, which is determined by the location of the knot, will fall 4' before being arrested. If the BL is 30' above the LD then there is a total of of 32' of rope out, that 4' fall on 32' of rope is a Factor of 0.125, a far cry from the factor 2 falls that broke the high mods.

There are materials that will endure higher factor falls, or a greater amount of them in succession before failure. However almost any product, nylon/polyester rope, high mods, three strand, steel chokers, etc; will fail when subjected to a factor 2 fall with a LD within the range of the SWL.

Bottom line high mods are tough stuff, and when used properly pose no additional risk than any other industrial textile when used appropriately.
 
It's not really the shock load of the material. What I don't know is what material is used and what splice is used in the device. In other words, I am not concerned about shock loading dyneema. I am concerned about the heat development in the splice.
 
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