M rig ascender

[letigre]

heres an interesting response from my buddy dale a kiwi climber.

http://www.youtube.com/watch?v=lp0meSrZFEA&feature=youtu.be

 

[Tony]

You don't need the figure 8 at the top, just tie the other line on. Or I like to use an in line loop clip the termination end of my climbing line to it then it's in the tree when I get there.

I messed with a similar system a few years ago. Called it the spider. Fun, but I did not feel it was very practical for my usual AO.

I am currently messing with some single line ideas with a similar rope set up.

Tell your buddy thanks for sharing.

Tony


,

 

[treebing]

Ive played with that too with two pantins. Very fun. Somebody, posted a helmet cam video of the DRT speed ascent. I forget who. You need a really long rope. Tom, i dont know if there is too much to say about just one particular system. May as well let it flow a bit... Compare and contrast a bit you know. Make one good thread as opposed to five lil bitty ones? Keep the m system the focus, but how does it rate to these other options. I only have attention span to follow a couple of thread at a time.

 

[moss]

[ QUOTE ]
IMO I see that it is missing a sternal ropegrab or chest roller
to keep the climber more upright.
If that is included it would make it mucho better.

[/ QUOTE ]

Agree. I think a chest roller would mesh just fine with the M system. Hell, you could put one ascender on a short "stick" and the other on the longer one standard in the M to have complete clearance and full extension potential per stroke above the roller.

This is now getting into the top fuel dragster end of rope ascent.
-AJ

 

[surveyor]

I believe you could also have an ascent system with a doubled rope over a pulley above, where both sides are on a croll type ascender and then both sides have a hand ascender/footloop for pulling each side through the crolls.


edit: well I tried it with two OARS attached (pulley above at TIP) at the harness and chest. It works fine. you don't really need the hand ascender above, just a foot ascender on each foot below to pull each side through the OAR's. Tie a stopper at the end of each side. I only have a left foot ascender, so had to substitute a hand ascender and short footloop below the OAR on the right side. To descend, just kick off both foot ascenders and use either or both OARS.

Anyone have a right foot ascender they would like to trade?

 

[Jamin_Mayer]

I like the idea if I needed to ascend 100'+ to the first branch of a tree. But, for my everyday short tree in Colorado, I wouldn't be able to justify the gear.

 

[moray]

The mid-line obstacle seems deceptive. A real obstacle, and a common one at that, would be a limb redirecting your rope. I can pass those with my simple little Texas system, but what about the M-rig? With the tall ascender placed above the limb and weighted, you have the ascender being pulled in one direction from above and a different direction (not 180 deg) from below. This is a scenario trying to bend the long arm of the gizmo against the limb. Either the arm has to be strong enough to allow bending and rigid enough to advance the ascender, or it has to be strong enough to prevent bending and yet not weigh too much. Either way, a tough engineering challenge.

 

[DanHouse]

Go with Bamboo or Carbon Graphite tubes.