Little trick passing a natural redirect

Peter_bomen

Peter_bomen

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Location
Eisden
Just one way to pass a natural redirect without unloading the climbing line. Using my lanyard through the union is something I started doing when making fixed redirects under tension, which makes that much easier. I tend to do this a lot lately..

 
That's good! Which rope clamp/pulley is that? Not a Roll n' Lock, Not a Camp Solo 2 as far as I can tell.

Key feature is it looks pretty easy off after the redirect is loaded. Some amount of unloading is required to release the cam, yes? It would be a magic trick otherwise ;-)
-AJ
 
moss said:
That's good! Which rope clamp/pulley is that? Not a Roll n' Lock, Not a Camp Solo 2 as far as I can tell.

Key feature is it looks pretty easy off after the redirect is loaded. Some amount of unloading is required to release the cam, yes? It would be a magic trick otherwise ;-)
-AJ
Click to expand...
That's a CT cric. Nice versatile little thing...
Indeed you have to unload the lanyard to release the cam. But the cric has this little cord that you can pull to open the cam inside. So you can easily slide it closer to your position for uninstalling. A prussik still works super nice for this, but since I have the cric, I don't have the patience anymore to install/uninstall prussiks :p
 
Peter_bomen said:
That's a CT cric. Nice versatile little thing...
Indeed you have to unload the lanyard to release the cam. But the cric has this little cord that you can pull to open the cam inside. So you can easily slide it closer to your position for uninstalling. A prussik still works super nice for this, but since I have the cric, I don't have the patience anymore to install/uninstall prussiks :p
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Aha, I've been hearing various people mention the CT Cric, cool. Faster on/off then a hitch, no strain releasing like a hitch can give you. Excellent rescue functionality etc etc. Cam pull cord is good.
-AJ
 
I was Circ'n away this fall and came to wonder if an inventive fellow couldn't come up with a little bread-tie/ knot jammer and a string thingy to put on the Cric's cam release string and knot (Arbsession 3D printing prototype lab??) - for when the Cric gets out of reach a bit. Then pull on string to bring it back to you. Not sure if this'd work. A winter project for tinkering? I've seen Daigentanoen use a carbon fiber retractable stick with a hook on the end for such retrievals too. Neat video - thanks.
Moss if you haven't tried the CRIC, it's a really nifty thingy (gets a bit full of rope if your line is over about 11.5- 11.7 mm in a 3:1) but it's still on my belt every climb now. Cheers all

Addenda and aside: HowKnotTo has a video on toothed (like the CRIC) vs ridged cams on ropes - turns out the toothed cams may be "easier" on a rope in a fall than the ridged cams (they were belaying falls with Petzl hardware). Who'da thunk it? Teethy things always give me the Willeys on life support ropes but guess not . . . . (recalling a past paper put out up here by ACMG doing alpine fall arrest catches and shredding rope sheaths).
 
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ghostice said:
Addenda and aside: HowKnotTo has a video on toothed (like the CRIC) vs ridged cams on ropes - turns out the toothed cams may be "easier" on a rope in a fall than the ridged cams (they were belaying falls with Petzl hardware). Who'da thunk it? Teethy things always give me the Willeys on life support ropes but guess not . . . . (recalling a past paper put out up here by ACMG doing alpine fall arrest catches and shredding rope sheaths).
Click to expand...

The way I look at it is there are two basic modes for any life support attachments for tree climbers and it's the same for rigging wood of course.

Mode 1: Dynamic
The potential for dynamic loading (climber fall could happen). Climber is in motion on the anchor.

Mode 2: Static
Static loading only, climber is setting an anchor for a fixed position. They are effectively stationary, not in climb/movement mode. Climber is using the anchor to hold a stationary position to perform a task. They are not using a hand or powered saw (which could cause a dynamic fall to happen).

@Peter_bomen 's example in the vid is clearly a static loading scenario. I've used a Petzl Tibloc for the same use in the past. People commented "Tibloc will shred your line". Not in a static set.

No worries about toothed cams holding a static load within the device load spec. This has been covered quite a bit in the past, toothed cams are problematic in dynamic falls/extreme loading on arborist double-braids. Toothed cam rope grabs were designed for core dependent kernmantle lines, it's not fun but ok to shred the cover, the core will hold.
-AJ
 
Well, I always thought the same. Using toothed cams only in static situations. But recently a friend of mine with a lot of speleo experience told me they (general in speleo) have always worked with toothed cams in dynamic situations, and never had problems with them shredding ropes...

Well, I think that if I use the cric only in static situations, I'm using at least 1 device by the book :)
 
The ACMG test I referred to above were drop belay tests on dynamic ropes - at that time it would have been something like Edelrid 11's or something. That was before the modern day 8's or 9's (which a lot of us old guys still look askance at, at least for alpine/ ice). Stay safe.
 
Peter_bomen said:
Just one way to pass a natural redirect without unloading the climbing line. Using my lanyard through the union is something I started doing when making fixed redirects under tension, which makes that much easier. I tend to do this a lot lately..

Click to expand...
ISC Squirrel with Arbsession short tether? Looks like a cool combo. Forgive me if this is an obvious/known pairing. I'm no longer the climbing nerd I once (barely) was.
 
Analog said:
ISC Squirrel with Arbsession short tether? Looks like a cool combo. Forgive me if this is an obvious/known pairing. I'm no longer the climbing nerd I once (barely) was.
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It's the ISC apex (new rope wrench) with the short Arbsession caralink tether (V1 for perfect-O, but installed with a normal size oval carabiner). This is the combination I use in wet weather or with wet ropes. In this conditions the zigzag shines :)
I don't think it's an obvious combo, never seen anyone else doing it. It's also a pretty illegal combo :/
 
Peter_bomen said:
It's the ISC apex (new rope wrench) with the short Arbsession caralink tether (V1 for perfect-O, but installed with a normal size oval carabiner). This is the combination I use in wet weather or with wet ropes. In this conditions the zigzag shines :)
I don't think it's an obvious combo, never seen anyone else doing it. It's also a pretty illegal combo :/
Click to expand...
I run the zk2 in that configuration, but with the perfect- O; hardly ever a time it's not great.
 
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