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scotspine1
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Everything posted by scotspine1
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codz, joe, just out of interest, how is the shackle attached to the timber? can't quite make it out from the vid? Also if you look beneath the side stub on the left, what's happening here? cheers
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Joe, I was using 3 strand at the start of my career and still use 3 strand to this day (along with more modern rigging gear), dont have an issue with 3 strand, but I did doubt your judgement with the way you used the rope and rigged the timber. When I saw the shackle and how you'd cradle rigged it, in effect with the shackle acting as a massive subtractor of rope strength as the force is dissipating into the system. The more force was put on the shackle the worst the outcome was going to be because you only had a single length of rope through the shackle (albeit forming 2 legs of a cradle rig). Doubling the rope at this point with a cradle rig like you did and adding an extra shackle to decrease the bend ratio would help a great deal. Just an idea, good luck next time, be sure and post the vid.
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how dare you doubt my credentials Mr Cody, I've done some of the biggest and most awkward Euc removals in Scotland. I was guided through this particular giant by the world renowned North American tree removal expert Mistahbenn
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what if you doubled the rope throughout the whole system including the cradled rig, so there would be 2 sides of the rope going through the shackle side by side instead of the one you have, this would = 100tons of breaking strength @ the cradled rig. Essentially it would be same setup as you have but the whole rigging system is a doubled rope from the rigged timber at the top through the shackle, down onto the half hitch round the side limb and the wraps round the base of the trees. the cradled rig would have 100tons of breaking strength, the rest of the system would have 50tons but remember it's the cradled rig at 100tons that's taking the bit hit. Also what about 2 shackles doubled up side by side to decrease the bend ratio? .
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With regards to your comments above, if someone has developed the ability to think critically they're free to express their opinions, regardless of their relative experience in treework. Put it this way Cody, Stevie Wonder could've seen that rope was gonna snap. I'm not a desktop arborist, and neither is anyone who has posted critical comments in this thread (apart from Stevie Blair but he's a very wealthy man and can afford to be one, kidding Stevie ) Australians/Kiwis and Australian/Kiwi based climbers, you dont have a monopoly on big tree work. This is a Redwood we worked on recently about 30 mins drive from Glasgow. A lot of people on this forum dont post pics and vids of their work because they've nothing to prove, especially not to thin skinned Aussies/Aussie based climbers who can't take a few words of criticism.
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Cheers Adam, glad you enjoyed it. great saw, it's one of their pro-range (difficult to get hold of in the UK) at the time I bought it I was gonna buy a 372xp but saw the JRed and bought it instead as it's essentially the same saw. Had it for years now, never lets me down. I used it recently with 30" bar on a decent sized redwood removal, it ploughed through the wood no bother, was nice to have a lighter saw up in the tree as well.
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that was filmed on a borrowed drift 170, have never used any other headcams, but the gopro looks good, also the newer version of the drift looks good. cheers, there was basal decay with Kretzch, it's one of only 2 trees where I've hired a Picus to get readings to help determine how to approach the job ie rigging optimum sizes etc. Have the Picus readings and cross section of base (post fell) pics if you'd like to see them let me know. There was a gas tank under the tree which we built a temporary shelter over to stop any debris hitting it during the rigging (dead stuff breaking off etc) . Tyres along the retaining wall near the building etc. Lots of prep.
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cheers folks, rob arb, what roberts said - Jonsered 2171 (same as husky 372xp), the husky at 1.09 is a 288xp hi Ross, decay/cavity in that stem further down below me, too dangerous to rig down on itself.
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this is a fun vid here made for other treeclimbers/workers entertainment, feel free to comment and I'll do my best to answer, enjoy - [ame=http://www.youtube.com/watch?v=gvAyLQbT-XQ]http://www.youtube.com/watch?v=gvAyLQbT-XQ[/ame] (this ones from a while back only just got round to editing it all together)
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nobody said anything about 'bigger trees having nothing to do with the skill of the climber' I said which means a good climber will be able to adapt to different trees in a multitude of different situations. .
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a lot of people have failed to mention the weirdest thing about this vid, turn up the volume, skip to around 3.57 then listen to the slow motion laughs at 3.59, sounds like a nightmare, ohhhhhhhohoho followed by ack ack ack, could've been a wombat mind.... on the whole, it's a cool vid. [ame=http://www.youtube.com/watch?v=oa1SAkP0wx0]big rigging gone wrong - YouTube[/ame]
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living the dream eh Ben, lol! you wrote these lyrics didn't you? [ame=http://www.youtube.com/watch?v=Kxyu4L1RJmo]Best Patriotic Song About America EVER!!! - YouTube[/ame]
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tree climbing comps are irrelevant to this vid. As for the comment about Australian trees being bigger so the work is more technical or whatever is rubbish. You'll find people all over the world with excellent skills in rigging/treeclimbing regardless of the size of the trees. Being a good climber is a state of mind not where you work or how big the trees are. The question is, if these guys had all this amazing experience then why did they think they could stop that timber in that configuration using that equipment? What this vid does show, to trainees in particular is that these two guys with their vast combined knowledge and experience failed to predict the outcome of the experiment.
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that rope was never gonna hold that timber, there would've been near 25 ton of weight as it hit the rigging, it fell a good 12 feet before it locked up then the rope snapped. Factor in weakening effect of the bend radius of the loaded rope as well and the 25 ton breaking strength is severely diminished. As a workshop it was totally pointless as an advert for an arb equipment supplier it would make me doubt their judgement when it came to asking for advice re rigging. It was a waste of a good opportunity to display some proper negative blocking using proper arb rigging gear.
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There's nowhere near enough room in the super/kingcab for kid's seats and all their gear as well. gotta be a crew/double cab, hope this helps.
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at 2.40 in this vid [ame=http://www.youtube.com/watch?v=lewpMtIosPI]Sudden Oak Death: Battling an Invasive Disease - YouTube[/ame]
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The Registry of Treeworkers will be an unnecessary layer of bureaucracy. It sounds like something the EU has dreamt up and wants to enforce on the good hard working people of the UK. I wont be taking part in this Registry and I certainly wont be using to find employees.
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Watch this vid 1.08 to about 1.12 Look at his left hand position and listen to the brake being activated at the moment of kickback. I've used this test (dont try this at home kids) 100s of times with a 70cc saw to demonstrate the inertia brake being activated during kickback. Forget the red cross animation thing and the video narration - inertia brake is activated by kickback, listen to the operator revving the locked up saw immediately after the kickback- 1.08 to 1.11 - [ame=http://www.youtube.com/watch?v=M1urRc0y64I]How to Work with Chainsaws - Getting Started - YouTube[/ame]
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calling yourself Vertigo on a forum dedicated to people who work at height might send out the wrong message how would your scheme differ from the Arb AC scheme? who would be the 'official organisation' awarding the accreditation? The Forestry Commission? The ISA? The Woodland Trust? if it's not an already well established organisation connected with trees or tree management you may find it difficult to get established?
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and shillo yeah, that's it, cheers.
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Any ideas?
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Nice to see some enlightened clients in the US treeseer, is that Fomes?
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nice one mate, looking forward to seeing it. yep, saw that, very good it is too. The guy who made the Treestuff one above is a member on Treebuzz, 'Oceans' is his member name if anyone is looking for info on how he makes it. Long thread but well worth a look for those interested - some good pics, explanations etc - TreeBuzz Board: new rope wrench tether
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Just putting this out there for people who haven't seen it, Treebuzz has a forum dedicated to SRT, there's some good ideas/threads. TreeBuzz Board: Viewing forum: SRT-Half the rope, twice the fun! Maybe we should have a dedicated SRT forum on Arbtalk? Steve? what say you? Saw this tether the other day on Treebuzz for use with the Hitchclimber, looks good. Tree Stuff - Singing Tree Rope Wrench Oceans Tether
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[ame=http://www.youtube.com/watch?v=XyXwrXgN0qw]the F8 revolver - YouTube[/ame]
