- Location
- Bloomington, Indiana
[ QUOTE ]
Mahk- great pics!
[/ QUOTE ]
Photographer was Tim Bushnell.
Mahk- great pics!
[/ QUOTE ]
Photographer was Tim Bushnell.
Retrievable doubled rope redirect
- Thread starter Tom Dunlap
- Start date
- Location
- Retired in Minneapolis
The ISC pulley's cheek plates are bent in and down a bit. With the right biner, cheekplates trap the two ropes into the sheaves. Try several different biner profiles to get the right combination.
When the ropes are pulled sideways they don't roll up on top of the outboard rope, on top of each other.
When the ropes are pulled sideways they don't roll up on top of the outboard rope, on top of each other.
- Location
- Bloomington, Indiana
[ QUOTE ]
but if you spliced a ring into the tail of your climbing line, you'd never have to haul around the extra friction saver to accomplish this redirect.
Hmmmm.....
[/ QUOTE ]
....mmmm. Instead of splicing the ring on the end of the climbing line what if you carried a ring spliced to a split tail? Less bulky than than the FS, it could be attached to the end of the climbing line with a Prusik when needed and removed when not in use.
You'd have to check to see how this would work with smaller (~11mm-ish) climbing lines. I remember we used the 1/2 inch for the FS because it was just small enough to work. That is, it fit through the small ring, but was still snug enough that the second bight and slip knot would be secure and not loose.
but if you spliced a ring into the tail of your climbing line, you'd never have to haul around the extra friction saver to accomplish this redirect.
Hmmmm.....
[/ QUOTE ]
....mmmm. Instead of splicing the ring on the end of the climbing line what if you carried a ring spliced to a split tail? Less bulky than than the FS, it could be attached to the end of the climbing line with a Prusik when needed and removed when not in use.
You'd have to check to see how this would work with smaller (~11mm-ish) climbing lines. I remember we used the 1/2 inch for the FS because it was just small enough to work. That is, it fit through the small ring, but was still snug enough that the second bight and slip knot would be secure and not loose.
- Location
- Bloomington, Indiana
[ QUOTE ]
Mahk, Why is the ISC a better double pulley over the CMI?
[/ QUOTE ]
The CMI has a becket, the ISC does not.
The becket causes more fiddling to get both legs of the line onto the micro pulley, and then to get the micro pulley clipped to the carabiner.
The becket also pinches the line more as the climber moves in the tree. The two sheaves and the becket all bend or twist as the climber moves out of direct alignment with the micro pulley and the twisting pinches the legs of the climbing line.
The ISC does not have a becket so the whole body of the pulley turns and follows the direction of the climber.
Mahk, Why is the ISC a better double pulley over the CMI?
[/ QUOTE ]
The CMI has a becket, the ISC does not.
The becket causes more fiddling to get both legs of the line onto the micro pulley, and then to get the micro pulley clipped to the carabiner.
The becket also pinches the line more as the climber moves in the tree. The two sheaves and the becket all bend or twist as the climber moves out of direct alignment with the micro pulley and the twisting pinches the legs of the climbing line.
The ISC does not have a becket so the whole body of the pulley turns and follows the direction of the climber.
- Location
- Bloomington, Indiana
Some pics:
CMI:
http://www.cmi-gear.com/catalog/pulleys/pullspecs.asp?partnum=rp110d
ISC:
http://www.iscwales.com/pdf/pulleys/aluminium/RP031%20Small%20double%20re-direct.pdf
I think the CMI is more restrictive. Never had a problem with one rope rolling onto the other with the ISC.
CMI:
http://www.cmi-gear.com/catalog/pulleys/pullspecs.asp?partnum=rp110d
ISC:
http://www.iscwales.com/pdf/pulleys/aluminium/RP031%20Small%20double%20re-direct.pdf
I think the CMI is more restrictive. Never had a problem with one rope rolling onto the other with the ISC.
- Location
- Northern California
TreeCo
Carpal tunnel level member
[ QUOTE ]
Just my two bits.
[/ QUOTE ]
You've got some really great stuff in your bag of tricks. If I were to guess I'd bet you guys were doing a lot of this stuff several decades ago.
Just my two bits.
[/ QUOTE ]
You've got some really great stuff in your bag of tricks. If I were to guess I'd bet you guys were doing a lot of this stuff several decades ago.
- Location
- Tha Dirty Bean
something tells me we are about to see a great innovation in this area that will be on the market soon......
Gerald_Beranek
New member
- Location
- Ft. Bragg, Ca.
Thanks,Mahk
I have the ISC, and it can be a B to load, but other than that it's sweet for a redirect. Of course this comes from an old schooler who, for years, used limbs and crotches for redirects.
Jesse Bawcum showed me the slip knot method of mounting the
RD when we worked at the tree house. He use the tail of his climbline for it. Very ingenious, but frankly I never used it.
I experimented with the snap shackle, and binner and slings for retrievables, and they work great. I just wish I would have knew about them a lot sooner. Though fun to play with today.
Funny, I did a search on the Buzz a few days ago about the RD and now this thread come up. Go figure.
I have the ISC, and it can be a B to load, but other than that it's sweet for a redirect. Of course this comes from an old schooler who, for years, used limbs and crotches for redirects.
Jesse Bawcum showed me the slip knot method of mounting the
RD when we worked at the tree house. He use the tail of his climbline for it. Very ingenious, but frankly I never used it.
I experimented with the snap shackle, and binner and slings for retrievables, and they work great. I just wish I would have knew about them a lot sooner. Though fun to play with today.
Funny, I did a search on the Buzz a few days ago about the RD and now this thread come up. Go figure.
- Location
- Victoria, BC
I've got one I've been using for a few years now but never shared. I suppose I've kept it a secret to have an edge at competitions. I have yet to use it in a comp and I see no reason to prevent others from potentially benefiting from it. Besides if someone else using it is the only reason I didn't win, I didn't deserve to. I'll post some pictures when I get home.
- Location
- Bloomington, Indiana
[ QUOTE ]
Funny, I did a search on the Buzz a few days ago about the RD and now this thread come up. Go figure.
[/ QUOTE ]
Here ya go Jerry; title of the thread precedes the link. Don't follow any of the links within these threads,except the links to other websites. The TBzz links go back to each other.
Redirects
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=13230&page=0&fpart=1&vc=1
retreivable redirects
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=42794&page=0&fpart=1&vc=1
retrievable redirect
http://www.treebuzz.com/forum/showflat.p...=true#Post60212
....
The Re-Direct Thread
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=93031&page=0&fpart=1&vc=1
Limb/branch walking advice
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=86768&page=0&fpart=1&vc=1
Funny, I did a search on the Buzz a few days ago about the RD and now this thread come up. Go figure.
[/ QUOTE ]
Here ya go Jerry; title of the thread precedes the link. Don't follow any of the links within these threads,except the links to other websites. The TBzz links go back to each other.
Redirects
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=13230&page=0&fpart=1&vc=1
retreivable redirects
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=42794&page=0&fpart=1&vc=1
retrievable redirect
http://www.treebuzz.com/forum/showflat.p...=true#Post60212
....
The Re-Direct Thread
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=93031&page=0&fpart=1&vc=1
Limb/branch walking advice
http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=86768&page=0&fpart=1&vc=1
- Location
- Retired in Minneapolis
[ QUOTE ]
we keep getting beat by guys on tautlines anyway!
[/ QUOTE ]
The fellow who won the 2008 Geezers Invitational was a very traditional climber...and so smooth!
we keep getting beat by guys on tautlines anyway!
[/ QUOTE ]
The fellow who won the 2008 Geezers Invitational was a very traditional climber...and so smooth!
- Location
- Victoria, BC
- Location
- Victoria, BC
- Location
- Victoria, BC
Finally just pull the tail of your rope and it pulls the terminal end and the redirect back to you. Just a nice double pulley redirect with out the other safety issues of the quick release shackle or the prussik/microscender that slides off the end of the redirect line.
Attachments
NickfromWI
Participating member
- Location
- Los Angeles, CA
I can't quite envision how that works. How does that overhand knot get installed? From far away?
love
nick
ps- make smaller eyes!
love
nick
ps- make smaller eyes!
Gerald_Beranek
New member
- Location
- Ft. Bragg, Ca.
Thanks again, Mahk, you're always a great help.
Murph, I'd love to see those RD's in action. You must have tweeked some brain cells to come up with those.
Murph, I'd love to see those RD's in action. You must have tweeked some brain cells to come up with those.
- Location
- Victoria, BC
Nick, The overhand knot gets tied when you install the redirect. Lanyard in to the place you are re directing at, Install the redirect around the stem and run each end of your climb line through each pulley, pull up the tail of your line and tie it with a half hitch to the side of the redirect that your climbing hitch is on (very important), leave enough tail so that you can clip the halyard shackle ABOVE the pulley that is redirecting your terminal end. You want to have enough tail so that if the redirect moves the halyard isn't tight and causing friction on your line.
P.S I bought that rope pre-spliced before I learned how myself. It works fine with a girth hitch
P.S I bought that rope pre-spliced before I learned how myself. It works fine with a girth hitch
KentuckySawyer
Participating member
- Location
- Louisville
Hey Mahk,
I have a couple questions regarding the method you showed using essentially a ring/ring FS. When retrieving the redirect, it looks like the small ring passes through the biner. The biner and pulley fall down the climbing rope and back to the climber. Then the tail rope pulls the FS down to the climber. Is that correct?
How long of a FS are you using there? 8-10ft?
I have a couple questions regarding the method you showed using essentially a ring/ring FS. When retrieving the redirect, it looks like the small ring passes through the biner. The biner and pulley fall down the climbing rope and back to the climber. Then the tail rope pulls the FS down to the climber. Is that correct?
How long of a FS are you using there? 8-10ft?
