off track removable positioner gadget

treebing

treebing

Been here much more than a while
Location
Detroit, Mi.
Okay, so I ordered one of the clevis pulleys from sherrill and spliced myself up a friction saver modeled after the art positioner and such. Mark claims the tool is awesome and so do others so I made myself one. Now I am using it with the Yale blaze rope. It is awesome when the rope is running across the pulley, but inevitably it gets off track and runs sideways. This causes the rope to get unnesseary friction, and worse yet it twists the rope up like hell. Am I doing something wrong or are there tricks to avoid this? anybody relate? it has come the the point I have reverted to the micropulley and carabiner arrangement for my friction saver except on spars where I dont need to swing around much. help a brother out here.

kevin
 
When I was getting to the point that I wanted a rope guide, I thought the same thing you did...why pay all that money when I could just make my own! Well, the pulley I used, which was similar to the authentic one, did the same thing you're talking about. The rope would hop off the sheave and it was worse than climbing in a natural crotch!

I reccomend you just do what I did, break down and buy the real thing- or you can at least order the new updated pulley for it, and splice up a new rope guide using the proper pulley.

Let's see a pic of the pulley you used!

love
nick
 
Soory I cant really send a picture of the thing because I dont have a digital camera. but it is basically a clevis pulley exactly like the one (according to sherrill), used on the ART positioner. I have the pulley held on to a rope with a tenex hitch tied with a knute (I thought this would make it self minding but it doesn't really) instead of the ART positioner. at the tail of the rope I went to the hardware store and bought a snap that will catch my splice as it come through the pulley. This way I can thread the rope through the pulley and just snap on the snap, when I am working close to the pulley, I can unsnap it and then resnap it when I decend away from the gadget. it gets off track it seems if I have been working with slack in my line for a while out on an angle, this is inevitable in big tree. When it does get off track, it is impossible to reset it without physically getting up to the pulley. Nick, I dont think that the pulley itself is different, it still costed 40$, But you went out and bought the whole shabang and dont have that problem anymore? I wonder what the difference would be. It seems like the ART device is only an elaborate friction hitch. and the pulley I bought seems identical to the one in the picture. Anyhow thanks for the response. I am climbin and lovin it in DETROIT, MI.
kevin bingham
 
Kevin I just recently received the updated pulley from greg good. It is completely different. There are no plastic pieces and there are side plates to keep the rope on the pulley instead of just the clevis. It cost $60 and i got 2 because it is worth it in my opinion.
 
Treebing, your are talking about the ART Rope Guide. The positioner is a work positioning lanyard, very simular cam. Different function.
 
so where can I get one of these updated pulleys? that sounds like my problem here, plus the fact that I dont know what the damn thing is called. Todd, you showed me when you came to detroit a pulley you made out of a clevis and an old fixe. Have you had any problems with it coming off track? Sherrill I do not think has the updated pulley. Who is Greg Good? thanks for the help.
kevin
 
Treebing, the pulley I made was of a bow shackle http://www.bosunsupplies.com/products2.cfm?product=S0116-NS

Then I slipped a petzl P00 pulley (I think it's called a Ultralegere)- basically a plastic pulley sheave, http://www.rei.com/product/310850.htm onto the pin of the shackle. This was my pulley.

Like you said, when the rope would go slack, and especially when working at a height near my TIP, the rope would go off track and get jammed. I would often be able to correct it by flipping the rope just the right way, but this was mostly just luck.

I only lasted a few weeks before I broke down and bought the right parts and made a "real" rope guide.

The real ropeguide didn't have the same problem because the outside diameter of the pulley sheave was smaller and when the climbing line hits the shackle, it will slide down and seat properly into the sheave of the pulley where it belongs.

Moral of the story is- get us some pictures and just get the "real" rope guide! /forum/images/graemlins/applaudit.gif

love
nick
 
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