retrievable redirect

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so what's the "m"?k.

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Do ya git it Kath, from Steve's post. If not, I'll try to take some pics today.
When you're done, your rope kinda takes an "M" shape. Easily retrievable and reusable in the same tree. Limitation: when you descend 1 foot, 4 feet of rope go thru your hitch.
 
Nick, what the rating on that little shakle and how much force is required to open it? looks dodgy to me.

I've used the M quite a bit now and with 2 rope guides it work lovely. If you use a cambium saver(trad style) with karabiners instead of rings then its possible to configure it so that you can later remove your original TIP and continue working or descend from you redirect point only. You have to make the decision when in stalling the re de, which one your going to want to remove later, once its set its too late unless you go back to it. A rope guide only works if its the re de you want to remove later not the TIP.
 
Steve wrote:

Kathy wrote:

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so what's the "m"?
k.

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kathy, for the m redirect you unclip your lifeline(end with the splice on) thread it through the krab you unclipped it from, run it over the secondary anchor point then back to the biner and clip it back in. then to retrieve simply unclip and it will come back down to the biner.

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Attached is a photo that someone else submitted to another thread here on TBz.
 

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http://www.ronstan.com/marine/range.asp?RnID=209A

I am using the RF6120 on that particular redirect. I made that one to be very light weight...the sling is made of 1/4" Yalex. When I make them to sell to others, I use 3/8" Yalex and the RF6210.

For the pull line, you have to give it a good sharp tug. I've experimented with popping it open while I was hanging in the system, but couldn't do it...mostly because the shackle was hanging in the wrong direction and with weight in the system, couldn't align itself the right way.

Either way, I like the system....though it's far from perfect. The M is very good, too. Especially because it requires no extra gear to be hauled around.

love
nick
 
HA! That's a guy who took a class I taught in Italy! Nicola was his name and he is a very good climber (BTW). Thanks Mahk, I forgot I had that photo.

When I first thought of the "M" system, I was using no extra gear. Then I added the pulley on the harness. Then a second friction saver. They all react a little different and can be used for different solutions. But, I should've given it a different name.
grin.gif
 
Well, when I thought of it initially, I thought the rope came up and attached to a hitch, then continued up to the crotch and down to the harness, then back to another crotch and then to the harness. This made me think, up-down-up-down....hmmm, M? Sometimes doesn't look like an M, but that's where I decided to name it that.
 
Yesterday I was looking at some old video tapes. One of them recorded the 'Today' show report that was done for the Baltimore ITCC in 2000. In one brief flash Mark is up in the tree...using the M-redirect! Captured for posterity.

Besides looking [sort of] like an M...it's named after the fella who invented it :)
 
I like the M redirect, seems like an efficient way to double crotch. I'm not sure if you can call it a classic redirect since the pulley is doubling as a saddle tie-in point but that doesn't matter. Obviously you can do the same by using the other end of your rope but putting the pulley in the middle is a nifty trick.

For Nick's redirect release shackle I'd like to see a way that the shackle holds the sling together but doesn't require the climber to hang directly off the shackle (rigged so all weight is on the sling). I'll have to think about that a little more.
-moss
 
I shall try to explain my tweeked ree-dee which is a hash of other wiser peoples ideas that I could never hope to be clever enough to lay claim to!
Take a length of climbing line (I use about 2 metres or 6 feet), I tie one end to a rated ring (like a cambium saver ring) with a double fishermans, then make a mini climbing system around the branch but tieing a Bachmann hitch AROUND a steel oval krab and clipping the rated ring into the top end. That will choke around your limb, then hang your double pulley off the bottom of the oval krab mentioned above and thread your climbing line through the double pulley . This will hold really securely and of course being a mini system will adjust beautuifully to the size of limb. To retreive it , before you move off after installation either tie the end of your main rope or estimate how much rope you will need to work the re-directed area and pull enough slack through and tie a marline spike or similar and clip it into the same oval steel krab.
Work your re-dee area and get back to the point you want to carry on the rest of your climb from your main anchor, strop in and pull your long rope 'tail' previously attatched to the ree-dee and after a brief initial friction the Bachmann hitch should fly off the mini systems tail (like a climber without a stopper knot!!)and sppedline down you climbing line like a mo-fo!!!
I shall try to video it or at least photo it, it really is lush!!!!
 
AMMENDMENT TO PREVIOUS POST.

I made an error in the above post regarding retrievable ree-dee. I should have said clip the double pulley with a krab into the bottom of the Bachmann Hitch's loop and NOT CLIP IT INTO THE OVAL STEEL KRAB AROUND WHICH THE BACHMANN HITCH IS TIED!!! OOPS!! Sorry!!
 
After a few months of trying and comparing redirects, I have found (for me, anyway) the easiest, fastest, least equipment intensive option is to double-crotch using the tail of my climbing line. This also puts less load on the redirect tie-in-point.
 
MOSS!!!! AWESOME IDEA!!!!

I think I can picture how that would work, and I LOVE it!!!!

Just have the sling go around the branch, not girth hitched, and they meet together, about 1/2" apart from each other at the bottom, then held together by the snap shackle. Clip the redirect 'biner to the sling, then have the shackle/throwline hanging down at the bottom. I think that would do it. There might be some cross loading on the shackle, but I'll check it out...

I'll try it out and get some pictures this week. I bet it will retrieve a LOT easier than what I'm doing now!

love
nick
 
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