Forums: Climbing Disciplines: Big Wall and Aid Climbing: Re: [altelis] Solo aid: steel biners on anchor powerpoint?: Edit Log




scottydo


Apr 22, 2009, 6:21 AM

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Registered: Jun 3, 2007
Posts: 121

Re: [altelis] Solo aid: steel biners on anchor powerpoint?
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altelis wrote:
moose_droppings wrote:
altelis wrote:
scottydo wrote:
If you're solo aiding then you should probably be setting your anchor for an upward pull (with a directional piece). If you do that properly then you shouldn't have to worry about your anchor biners crossloading.

how do you figure? gravity must work diferently for you than for me.....even if you have the ANCHOR tensioned with a directional piece so that the soft-goods aspect won't shift in the event of a fall, and even with keeping up with your rebelays, there will constantly be changes in the amount of tension in the lead line. This will range from relatively tight to slack. When things are tight you are good, but during the times of slack the anchor biner attaching the lead rope WILL succumb to gravity. No way around that- no matter how well you set your directional, etc....because the only thing keeping the anchor biner oriented for the upward pull direction is the lead line itself


My tie in to the anchor is with an 8 on a bight to a biner that is taught between a multidirectional anchor. There is no room for slack on that biner, there is on occasion slack on the lead line but this does not effect the biner held tight between the opposed pieces in my anchor, so there is no worry about crossloading.

To the OP, yes my biner at the anchor is steel. When I'm lead soloing or aid soloing I'm usually miles from anyone and prefer the extra bit of safety. You can use two, but I prefer the one of steel.

I'm not trying to pick a fight here, I'm just having a really hard time figuring out what your anchor looks like.

If its like this:

Then doesn't this mean when you take a lead fall the directional would take all the force, right? 'Cause thats the only piece keeping the biner, and therefore the lead line, from moving upward...(biner is green, lead line is blue....)

How do you prevent this? When I aid-solo I create a multi-directional anchor and make sure to use rebelays....

You're right that the carabiner in the power point of my anchor is only being held up by the tension in the lead line. One way to keep that biner oriented correctly is with a long prussik attached from a piece that you place up the route to the lead line. (keep it long so that if you do fall and the rope is tensioned the prussik doesn't get sucked through the biner with the lead rope) This will still let the anchor take the force of a fall but when you are climbing it will keep that section of the rope just tight enough to keep your power point biner oriented up.

PTPP wrote some stuff about this. He suggested it more for keeping your rope from moving/rubbing over edges that could cut it as well as what I mentioned.


(This post was edited by scottydo on Apr 22, 2009, 6:44 AM)



Edit Log:
Post edited by scottydo () on Apr 22, 2009, 6:44 AM


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