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jonathan.gaillard


Nov 29, 2009, 3:16 PM
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Re: [Oddball] competely serene anchor [In reply to]
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Oddball:

But using a sliding X with limiting knots is supposed to give equalization with small extension, it does neither well, so why even use it?

Here are the situations.
1. You don't need equalization. The best anchor is then the ROPE clove hitched in series to your protection points. I have many reasons for this if you want to hear :)
2. You need equalization but don't care about extension. Then my anchor without the top sling is simpler than any solution that has the same equalization, and meets all other needs.
3. You need the best you can get, then use this anchor and spend the minute putting it there.


(This post was edited by jonathan.gaillard on Nov 29, 2009, 3:18 PM)


coolcat83


Nov 29, 2009, 3:21 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
Oddball:

But using a sliding X with limiting knots is supposed to give equalization with small extension, it does neither well, so why even use it?

Here are the situations.
1. You don't need equalization. The best anchor is then the ROPE clove hitched in series to your protection points. I have many reasons for this if you want to hear :)
2. You need equalization but don't care about extension. Then my anchor without the top sling is simpler than any solution that has the same equalization, and meets all other needs.
3. You need the best you can get, then use this anchor and spend the minute putting it there.


perhaps you could construct the actual thing and show us some pictures? maybe a video of the equalization when the load moves and each leg "failing" so we can see the lack of extension?


Oddball


Nov 29, 2009, 3:23 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
Oddball:

But using a sliding X with limiting knots is supposed to give equalization with small extension, it does neither well, so why even use it?

How does it do neither well? It does both perfectly fine, plus your not hauling every piece of gear that you and your extended family has ever owned up the side of a cliff just to build one anchor. Not to mention that SERNE doesn't cover everything. ERNEST (Equalized, Redundant, No Extention, Solid, and TIMELY) is more practical because some of us like to climb instead of building anchors all day


jonathan.gaillard


Nov 29, 2009, 3:23 PM
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Re: [coolcat83] competely serene anchor [In reply to]
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coolcat83:

I was just thinking about doing that, but I don't want to go to the work (thinking load cells I have access to) if people aren't genuinely interested, I'm sure you can understand that.


(This post was edited by jonathan.gaillard on Nov 29, 2009, 3:24 PM)


jonathan.gaillard


Nov 29, 2009, 3:25 PM
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Re: [Oddball] competely serene anchor [In reply to]
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Oddball:

Well I think it is fairly well known that the sliding X binds when loaded. And any limiting knot you tie, will reduce proportionally the amount it can equalize.


Oddball


Nov 29, 2009, 3:33 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
Oddball:

Well I think it is fairly well known that the sliding X binds when loaded. And any limiting knot you tie, will reduce proportionally the amount it can equalize.

It binds when loaded, so whats the problem? Did you die? No. Also of course the limiting knot will reduce proportionally the amount it can equalize, you have to use your judgement, heaven forbid! and if one leg above the extension did fail and you fell because of the extension how far would it be? a couple feet at most? Have you ever taken a lead fall? big deal you drop a couple feet and you may have a little swing. Also you still haven't fixed the time it would take to make yours problem compared to mine which would keep you both completely safe.


jonathan.gaillard


Nov 29, 2009, 3:39 PM
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Re: [Oddball] competely serene anchor [In reply to]
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Oddball wrote:
It binds when loaded, so whats the problem? Did you die?

If you were relying on equalized gear placement to give you the total strength then YES YOU DID.

Oddball wrote:
big deal you drop a couple feet and you may have a little swing.

To a lot of people the shock load is a big deal. The jury and tests are still out on the real force of a shockload on a factor 2ish fall.


Oddball


Nov 29, 2009, 3:57 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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Well there's obviously going to be no convincing you so I dont know why you would even ask people's opinions on your obsurdly long to set up and high amount of gear requirement anchor. And by the way, ive never had a Sliding X bind on me so i dont know what others are doing to cause it to but I guess they are going to die unless they bring all their gear with them on a multipitch climb.


patto


Nov 29, 2009, 3:59 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
patto:

SERENE is not an impossibility with dynamic equalization, it just hasn't been designed yet. And the "math" you speak of only applies to current designs, a new design would change that "math".

Jonathan Gillard. I didn't make that statement lighty. The maths of equalisation will not change. To put it simply to have dynamic equalisation leg length MUST be able to change to equalise tension across legs. This is in contradiction with no extension requirements where leg length cannot change.

I could go into much more complicated details about it all but I could fill a page with the nitty gritty and in the end the result is the same.


keep_it_real


Nov 29, 2009, 4:14 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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Sorry, I couldn't resist:
In reply to:
perhaps you could construct the actual thing and show us some pictures?

In reply to:
I was just thinking about doing that, but I don't want to go to the work

I thought it was fast to set up... No, I'm just giving you a hard time. Pictures and a video would take some work. But if you want people to take your idea more seriously, some pictures would help a lot. I opened the first drawing and didn't look any further but I would definitely be interested in some real action.


coolcat83


Nov 29, 2009, 4:23 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
coolcat83:

I was just thinking about doing that, but I don't want to go to the work (thinking load cells I have access to) if people aren't genuinely interested, I'm sure you can understand that.

i'm not talking about load testing it. I'm talking about make the thing on the ground, clip it to your fence if you have to, to we can se the real thing instead of a drawing.

then just make a vid or sequence of pictures while you unclip a leg (simulating failure) so we can see how it behaves. do the same with changing the direction of load. i don't think your setup is going to fall apart at low loads so i'm not looking for load testing.


patto


Nov 29, 2009, 4:25 PM
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Re: [Oddball] competely serene anchor [In reply to]
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Oddball wrote:
And by the way, ive never had a Sliding X bind on me so i dont know what others are doing to cause it to but I guess they are going to die unless they bring all their gear with them on a multipitch climb.

Well it does bind slightly on you and you don't even know it. So rather than perfect 50-50 equalisation you end up with 45-55 or even 40-60 equalisation.

Now sensible people would realise that 40-60 is damn well good enough whereas those who think it isn't design highly complicated anchors and post them on rockclimbing.com.


patto


Nov 29, 2009, 4:37 PM
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Re: [patto] competely serene anchor [In reply to]
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A further point.

The anchor does not equalise when the right hand point fails. With two loaded lines going to the right hand piece you end up with 75-25 loading. Thus the left hand piece gets loaded with 3 times more force than the other remaining piece!


moose_droppings


Nov 29, 2009, 4:39 PM
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Re: [patto] competely serene anchor [In reply to]
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patto wrote:
moose_droppings wrote:
The R in SERENE stands for redundant, and yes it applies to everything in an anchor including cord.
Says who? This obsession with redundancy is absurd. Even using two carabiners for you anchor point seems excessive and I have never seen any leader do this EVER. Do you use two carabiners in abseiling? There are plenty of non redundant items in the construction of an anchor and in general climbing. To think otherwise is absurd.

Yes you do want your cord configured to be redundant so if one part of it is cut you don't have complete anchor failure.

And yes you do want every part of you anchor redundant.
Do we always achieve it, no.
Does it have to be, no.
Will it always be, no.
Is there such a thing as SERENE, no.
Are you being overly excessive on this concept yes.


Oddball


Nov 29, 2009, 4:49 PM
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patto wrote:
Oddball wrote:
And by the way, ive never had a Sliding X bind on me so i dont know what others are doing to cause it to but I guess they are going to die unless they bring all their gear with them on a multipitch climb.

Well it does bind slightly on you and you don't even know it. So rather than perfect 50-50 equalisation you end up with 45-55 or even 40-60 equalisation.

Now sensible people would realise that 40-60 is damn well good enough whereas those who think it isn't design highly complicated anchors and post them on rockclimbing.com.

Thank you for understanding and explaining it very well patto, of course there is going to be some frictional resistance that will cause a very slight difference in equalization like you say, but it will not bind completely where you would only have all the weight on one piece was my point.


patto


Nov 29, 2009, 5:36 PM
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Re: [moose_droppings] competely serene anchor [In reply to]
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moose_droppings wrote:
And yes you do want every part of you anchor redundant.
Well actually I don't. And THAT was my point. I only ever have one carabiner at the master point of my anchor. I could have two but I don't because I recognise that redundacy is totally uneccessary here.

moose_droppings wrote:
Are you being overly excessive on this concept yes.
????
Um.. I thought I was the one objecting to people getting 'overly excessive' on this concept. ?????


adatesman


Nov 29, 2009, 6:27 PM
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majid_sabet


Nov 29, 2009, 6:40 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
Troll: In Internet slang, a troll is someone who posts controversial, inflammatory, extraneous, or off-topic messages in an online community, such as an online discussion forum, chat room or blog, with the primary intent of provoking other users into an emotional response[1] or of otherwise disrupting normal on-topic discussion.

Thats a great way of demonstrating, majid_sabet

you truly described me round here cause I do all of the above in this forum so for someone like me who is the king of troll in RC, do you know how easy it is for moi to recognize another freshman troller round here ?

you need to practice more on your trolling skill rather than drawing or climbing.

MS


moose_droppings


Nov 29, 2009, 7:09 PM
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Re: [patto] competely serene anchor [In reply to]
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patto wrote:
moose_droppings wrote:
And yes you do want every part of you anchor redundant.
Well actually I don't. And THAT was my point. I only ever have one carabiner at the master point of my anchor. I could have two but I don't because I recognise that redundacy is totally uneccessary here.

And I said I want, not has to be.
I see plenty of people clove to the anchor and then clip a bight for redundancy. So what, I'll continue to climb with them.
About every top rope anchor I see has two biners at the master point. Excessive? Nothing wrong with it and it only takes a sec if you've got an extra biner. Nothing wrong with it on tad anchors either if it makes someone warm and fuzzy. It's not a deal breaker for me.

patto wrote:
moose_droppings wrote:
Are you being overly excessive on this concept yes.
????
Um.. I thought I was the one objecting to people getting 'overly excessive' on this concept. ?????

I'm saying that you seem to be excessive about whether or not someone else wants to be excessive. Who cares if someone else wants to take 5 extra seconds and put another biner on the MP it they got an extra?

All these because I responded to the OP's statement that said cord is exempt from his SERENE statement. Thats excessive. You don't have to have a SERENE anchor, I agree with that. But if your going to talk about the concept of SERENE, then all parts of the anchor need to be redundant.


sittingduck


Nov 29, 2009, 9:47 PM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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Out of curiosity; could you illustrate/explain how you would connect yourself to the anchor, bring up a second and belay the leader from your anchor, on a multipitch climb?


patto


Nov 29, 2009, 11:28 PM
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jonathan.gaillard wrote:
Here are the situations.
1. You don't need equalization. The best anchor is then the ROPE clove hitched in series to your protection points. I have many reasons for this if you want to hear :)
Pfftt! Clove hitching in series has significant extension unless the pieces are in line. How about using a rope to create a statically equalised anchor without extension.

jonathan.gaillard wrote:
If you were relying on equalized gear placement to give you the total strength then YES YOU DID.
As I have said if you need perfect equalisation rather than 40-60 being good enough then you are doing something wrong.

jonathan.gaillard wrote:
To a lot of people the shock load is a big deal. The jury and tests are still out on the real force of a shockload on a factor 2ish fall.

The jury is not 'still out'. Theory is quite clear on this issue and testing does not disagree: There will be no shockloading if there is negligable mass attached to the anchor. There will be shockloading if there is a non-negligable mass attached to the anchor.*

*If the belay is weighting the anchor then this is a non-negligable mass.

It could be argued that the equalette is highly unsafe for this reason. If a piece blows during a fall then you have the belay falling on static line shockloading onto the remaining pieces. Forces would far exceed those seen in a regular codalette.


Partner angry


Nov 30, 2009, 12:06 AM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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This is the safest anchor setup I've ever seen. Three bomber and big pieces, well equalized.

Who among us would not rap off that?




saxfiend


Nov 30, 2009, 12:39 AM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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You didn't make clear in your initial post what you were actually looking for in terms of response, so I've taken the liberty of doing a little rewrite for you. Try to use this as a guide for future efforts at fishing for compliments.

jonathan.gaillard wrote:
I posted this over at supertopo, and since I'm getting totally hammered there, wondering your thoughts too I thought I'd see if I'd get more sympathy at rc.com !

Hello everyone, I just thought up an extremely complex and labor-intensive anchor and would like some feedback praise and adulation if would be so kind :) I'm only interested in hearing from those who think my system is the most amazing and original innovation since ribbed condoms, so if you're rgold or anyone else with enough common sense to recognize that my anchor system is utter garbage, please don't reply.


thepuddlestore


Nov 30, 2009, 1:00 AM
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Re: [jonathan.gaillard] competely serene anchor [In reply to]
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jonathan.gaillard wrote:
I posted this over at supertopo, wondering your thoughts too !
[image]
Hello everyone, I just thought up an anchor and would like some feedback if would be so kind :)

As far as I can tell it is completely redundant for all components (protection, cord, crabs). Also I think it adheres to SERENE without sacrificing dynamic equalization for no extension (of course adherence with SERENE only applies to protection failure, not cord failure etc). Even better than that, it uses minimal gear, or as minimal as it could with the above properties.

There is a slight bit of extension. It is equal to half the distance between the failing protection and the protection attached to the failing protection with the extension limiter strand. But this is half or less (depending on how close the protection is) of what other designs yield.

It is fast to setup because the knots that are not clove hitches can be tied before a climb, and it takes minimal cord. Basically to setup it requires 3 clove hitch adjustments, not long.

The clove hitches are there only to adjust length if you have no runners. Once can forgo the clove hitches to adjust and just extend which ever of the three ends you need to to be faster, since it all equalizes out.

The two and three protection versions are below (3 protection version only needs an additional 2 crabs and 1 small sling) as well as a very bad wrong version. Can anybody spot the deficiency in the wrong version? :D

where's your second rope? by your unrealistic standards this setup is only seene. shame on thee


rainman0915


Dec 1, 2009, 5:17 AM
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i wish people would stop asking questions then providing pics like that. its not that hard to set something up on coat hangers or something and take a pic of it, instead of posting something that a cia code cracker would have trouble deciphering.

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