an inexpensive cambium saver alternative

russelltree

russelltree

Location
New Sealand
I've been using this version of cambium saver for a few years off and on. This particular model seems to be the least gear intensive, easy to instal, easy to retrieve and a comfortable level of friction.

I have climbed using all sorts of cambium savers from ART pulleys, double ring, one ring-one pulley, and this one ring configuration seems to be similar in performance to the double ring cambium savers, which I find comfortable.

I realise that the bend ratio may not be quite as much as a full-sized pulley or a two ring cambium saver. In my opinion, the difference is negligable and safety is not compromised. Take into consideration the way in which a two ring cambium saver acts under load (shifting somewhere between one ring and the other, depending on climber activity, ascending or descending).

The attached picture shows how the one ring cambium saver is installed, being cinched off at the TIP. The climbing line is traced through the retrieval shackle, through the ring and back down to the harness. I do not set it from the ground, but I'm sure someone could figure out a way it could be. It is retrieved using the RG retieval ball.

I have had 100% success retrieving this cambium saver from real-live trees that I have climbed. It's easy to get a cambium saver to come out in the workshop but taking it in to the tree is the real test. The trick is to attach the retrieval webbing (any accessory cord would be acceptable as it is not exposed to load) to the centre of the sling stitching. This keeps the sling slightly more open, making retrieval more successful.

Just thought I would share my easy to assemble, inexpensive and easy to use cambium saver alternative. Please use rated components for any climbing application and practice low and slow.
 

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Nice and simple, I like it. But you're not really loading your biner like that when you climb right?

And your TIP seems a little sketchy, I would choose a much larger piece of firewood.
 
Cool.

Try this setup for your climbline.

Bit more streamlined, I've been climbing on this for years.

NewTribe004.jpg
 
There is no worry with the bend radius Lonnie if you were to do it but the issue is with side loading the biners as it is not designed for this application.
 
Sorry for the derail, and confusion.

I think Lonnie was asking about using a screwgate (steel?) in place of the ring on the false crotch. Bend radius could be an issue for rope longevity, also, be SURE to lock the screwgate every time if you choose to use one.

I think PUC was referring to Brendon's picture of his climbing system - practically the same as Russel's - which appears to put too much load on the gate side or "nose" of the biner. Krabs are meant to be loaded along the spine only. I have always discouraged this kind of single HMS biner arrangement - I think it's not approved for comps either.

Again: this thread is about a false crotch, sorry for the derail.
 
I was referring to a screwgate on the friction saver...for me I would prefer to ascend srt, then use this type of cambium saver for Ddrt.....I would prefer a screwgate so that I would not have to untie anything.
 
What are some other options for setting up my friction hitch, pulley and climbing line tail on one neat and simple carabiner, or are you suggesting using two in order to distribute the load more evenly along the axis of the caribiners? I have a micro mouse pulley but don't often use it in favour of using one biner for my Ddrt set up. I like to keep things simple on my bridge, but I'm open to suggestions if it's thought that my set up could be made safer...

My hitch set up passes all competition inspections here in NZ, what's the ruling in other parts?

Thanks!
 
Here's what I use. Of course the end you don't see has a small ring on it.
 

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That my friend is a Sherrill product. I believe it's tenex.
Thanks for the compliment.

I just came back from a week in Maine, I couldn't help but notice how healthy trees are on the coast. Lobster wasn't bad either.
 
What method of retrieval are we using here? Will throw line jam on a micro-pulley? I definitely would not want to climb off from a MP after bombing it out of a tree from any height!
I do realize there are other methods here just wondering what your thoughts are here?
 
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