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sungam
Aug 9, 2011, 9:39 PM
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Yeah, that will work.
So what system are you planning on using?
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jgruberman
Aug 9, 2011, 9:41 PM
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sungam wrote: Yeah, that will work. So what system are you planning on using?
I'm thinking of using from start to finish:
-The rope I just posted
-GriGri
-Petzl Ascender
-Couple of screwgates
-Two Slings
(not sure if a sling is just a sling or need a special one)
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sungam
Aug 9, 2011, 9:48 PM
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a sling is just a sling. You will need at least 4 screwgates - on between the two slings and the ascender, one between the sling and your harness, one between your harness and the grigri, and one or two for your back-up knots.
As far as the slings go... Get a nice wide one for you foot loop, the thin ones can dig in and hurt. A nice wide nylon one would be perfect.
Make sure they are the right length for what you will be using them for.
And again - make sure you know damn well sure you have the system down before trying it for real.
Here is a zoomed at view of what will be going on:
http://www.youtube.com/watch?v=NJHBQVkBxj0
I'll upload that pic in a minute.
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jgruberman
Aug 9, 2011, 9:50 PM
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Okay, that's what I was envisioning.
How do the backup knots come into play? I know what they are for, just not sure when to use them
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sungam
Aug 9, 2011, 10:07 PM
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jgruberman wrote: Okay, that's what I was envisioning. How do the backup knots come into play? I know what they are for, just not sure when to use them
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jgruberman
Aug 9, 2011, 10:10 PM
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And then I'm not attaching anything to the carabiner when I tie the knot... just tieing it so I can have something the gri-gri will stop on in the event of a slip/fall?
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sungam
Aug 9, 2011, 10:14 PM
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jgruberman wrote: And then I'm not attaching anything to the carabiner when I tie the knot... just tieing it so I can have something the gri-gri will stop on in the event of a slip/fall?
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jgruberman
Aug 9, 2011, 10:16 PM
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Got it. And if I'm going for budget(not sure if I am yet based on wifey), can I replace the ascender with another prussik? (and likely do more/better backups)
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jgruberman
Aug 10, 2011, 1:24 PM
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Perfect... The pic clears up anymore confusion. And for te backup knots... Just keep making them and clipping them onto the screwgate as I climb up? And keep two knots on two diff screwgates both on my harness as I climb?
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sungam
Aug 10, 2011, 1:29 PM
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1 knot at a time is fine. Two screwgates, so before you untie your first knot you can tie your second knot. That way you are never without back up.
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jgruberman
Aug 10, 2011, 2:01 PM
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I am 99% positive I understand fully. I will get the gear together and give it a go.
I did want to take a moment out of my morning and personally thank you for your help and answers. It's quite respectable for you to offer such an extensive amount of help to a newbie to the forums and without flaming or getting agitated. You have likely offered the most help I've ever seen anyone offer on a forum and I just wanted to thank you and let you know that it's much appreciated.
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sungam
Aug 10, 2011, 2:26 PM
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jgruberman wrote: I am 99% positive I understand fully. I will get the gear together and give it a go. I did want to take a moment out of my morning and personally thank you for your help and answers. It's quite respectable for you to offer such an extensive amount of help to a newbie to the forums and without flaming or getting agitated. You have likely offered the most help I've ever seen anyone offer on a forum and I just wanted to thank you and let you know that it's much appreciated. 
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jgruberman
Aug 15, 2011, 7:37 PM
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sungam wrote: Yeah, the ascender can be replaced with a prussik with no change to the system. Here's that pic: [image]http://i.imgur.com/KRArY.jpg[/image]
Just thought of something... if I replace the ascender with a prussik, then where does that "foot sling (should be longer)" go? Does the sling just attach to the rope with a prussik? And if so, I can't get one of those thin slings, I'll need a regular rounded rope type sling, right?
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jgruberman
Aug 15, 2011, 7:44 PM
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I think I answered my own question with this link, ya?
http://climbing.about.com/od/climbingknots/ss/HowToPrusikKnot.htm
Just use a small piece of rope to act as the "ascender connection" to the rope, then still use a biner, and still use a sling, ya?
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sungam
Aug 15, 2011, 10:26 PM
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jgruberman wrote: sungam wrote: Yeah, the ascender can be replaced with a prussik with no change to the system. Here's that pic: [image]http://i.imgur.com/KRArY.jpg[/image] Just thought of something... if I replace the ascender with a prussik, then where does that "foot sling (should be longer)" go? Does the sling just attach to the rope with a prussik? And if so, I can't get one of those thin slings, I'll need a regular rounded rope type sling, right?
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jgruberman
Aug 15, 2011, 10:34 PM
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Thought so... gonna go buy materials now... how's Scotland?
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Scoobdoo6559
Aug 16, 2011, 7:57 AM
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I was into caving for years and always used just two ascenders for climbing the rope out of the cave, and a Fig 8 for rapping down INTO the cave.
A old book that is out of print is still avail used via Amazon.com has described and showed illustrations of several accepted methods of ascending using a variety of ascenders and/or prussik knots. It is: Caving: The Sierra Club Guide to Spelunking by Peggy Larson.
Several manufactures make ascenders - such as Petzl, Kong, Gibbs and a Clog used to as well.
There are several ways to ascend from both a climbers perspective and a cavers perspective - some better than others - some not.
Some cavers that I caved with did use prussik back up knots in their system - others didn't. What is important though is when ascending - is to tie a knot in the rope that you ARE ascending say - every 8 or 10 feet and clip this knot into your harness with a locking carabiner should 1 (or both) or your ascenders come off of the rope - for any reason. In doing this - this eliminates a lengthy fall AND keeps one attached to the fixed rope at all times should something go wrong or fail in the ascender system.
I have always preferred the 'handle' style ascenders http://www.kong.it/products/HI_QUALITY/896.jpg myself tho there are other styles that I have seen used and work as well.
(This post was edited by Scoobdoo6559 on Aug 16, 2011, 7:58 AM)
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Scoobdoo6559
Aug 16, 2011, 8:06 AM
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PS Here is another style ascender made by Gibbs. They are less costly that the usual climbers ascenders with the handle on them - and used by many cavers and arborists as well. Some prefer this style ascender as a pin that goes thru the cam affixes them to the rope with less chance of coming undone from the rope.
If one is going to be doing MORE caving and such then prob climbing the Gibbs may be an option instead. It's just another way to ascend versus a ascender with a handle on it as many climbers and mountaineers use.
However, remember - NO ascender is foolproof and one should always back up their ascenders of ANY choice with either a prussik knot and/or tying knots in the rope at regular intervals as I stated in my above post.
(This post was edited by Scoobdoo6559 on Aug 16, 2011, 8:07 AM)
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sungam
Aug 16, 2011, 9:12 AM
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jgruberman wrote: Thought so... gonna go buy materials now... how's Scotland?
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