- Location
- Longmont, CO
CMI ProKnot Usage?
- Thread starter Jamin_Mayer
- Start date
Tr33Climb3r
Participating member
- Location
- Wisconsin
Isn't it supposed to replace a running bowline in light rigging situations?
- Location
- Longmont, CO
[ QUOTE ]
Isn't it supposed to replace a running bowline in light rigging situations?
[/ QUOTE ]
Dunno. I've never seen this thing.
Have you seen it out in the field?
Isn't it supposed to replace a running bowline in light rigging situations?
[/ QUOTE ]
Dunno. I've never seen this thing.
Have you seen it out in the field?
Tr33Climb3r
Participating member
- Location
- Wisconsin
[ QUOTE ]
[ QUOTE ]
Isn't it supposed to replace a running bowline in light rigging situations?
[/ QUOTE ]
Dunno. I've never seen this thing.
Have you seen it out in the field?
[/ QUOTE ]
This is where I got what I knew about it.
http://www.treestuff.com/store/catalog.asp?item=1824#detail
and the product guide
https://www.treestuff.com/store/images/pdf/PK2.pdf
[ QUOTE ]
Isn't it supposed to replace a running bowline in light rigging situations?
[/ QUOTE ]
Dunno. I've never seen this thing.
Have you seen it out in the field?
[/ QUOTE ]
This is where I got what I knew about it.
http://www.treestuff.com/store/catalog.asp?item=1824#detail
and the product guide
https://www.treestuff.com/store/images/pdf/PK2.pdf
Tr33Climb3r
Participating member
- Location
- Wisconsin
Some people were talking about it here I think when Luke put it up.
NickfromWI
Participating member
- Location
- Los Angeles, CA
[ QUOTE ]
Isn't it supposed to replace a running bowline in light rigging situations?
[/ QUOTE ]
Nailed it.
I don't know why anyone would do this. I can't see a single advantage.
Isn't it supposed to replace a running bowline in light rigging situations?
[/ QUOTE ]
Nailed it.
I don't know why anyone would do this. I can't see a single advantage.
Treespotter
New member
- Location
- Houten, The Netherlands
In the set up CMI shows in the picture it looks like it could get really really really stuck up there.
When it snags up to the branch there is no way to release the cam(s).
When it snags up to the branch there is no way to release the cam(s).
- Location
- Retired in Minneapolis
[ QUOTE ]
When it snags up to the branch there is no way to release the cam(s).
[/ QUOTE ]
A knife/saw would work!
When it snags up to the branch there is no way to release the cam(s).
[/ QUOTE ]
A knife/saw would work!
Treespotter
New member
- Location
- Houten, The Netherlands
[ QUOTE ]
[ QUOTE ]
When it snags up to the branch there is no way to release the cam(s).
[/ QUOTE ]
A knife/saw would work!
[/ QUOTE ]
What???? How much for taking that tree down? $ 6000.00?
Sure ma'am we need 30 150 feet ropes to get the anchor point in it's place.
[ QUOTE ]
When it snags up to the branch there is no way to release the cam(s).
[/ QUOTE ]
A knife/saw would work!
[/ QUOTE ]
What???? How much for taking that tree down? $ 6000.00?
Sure ma'am we need 30 150 feet ropes to get the anchor point in it's place.
Tobe_Sherrill
New member
- Location
- North Carolina, USA
A toothed ascender for use in "light rigging." Wow.
You won't find it listed at SherrillTree.com
You won't find it listed at SherrillTree.com
- Location
- Haddonfield, nj
[ QUOTE ]
A toothed ascender for use in "light rigging." Wow.
You won't find it listed at SherrillTree.com
[/ QUOTE ]
At least not until they send you that big check in the mail to say how great it is right Tobe?
It made to mimic knotless rigging minus the spliced ends and hardware. Can't say I've used one. Also can't say I wouldn't be willing to try one either as long as I don't have to pay 125$ just to be the beta tester (ie Kask helmets first generation)
A toothed ascender for use in "light rigging." Wow.
You won't find it listed at SherrillTree.com
[/ QUOTE ]
At least not until they send you that big check in the mail to say how great it is right Tobe?
It made to mimic knotless rigging minus the spliced ends and hardware. Can't say I've used one. Also can't say I wouldn't be willing to try one either as long as I don't have to pay 125$ just to be the beta tester (ie Kask helmets first generation)
flushcut
Been here much more than a while
- Location
- Delavan, WI
I see that thing getting smashed real quick.
Tobe_Sherrill
New member
- Location
- North Carolina, USA
Funny Marc ...but no, it's not about money, anymore so than my hours invested in your safety attending ANSI meetings and the like. It's also the reason Sherrill doesn't sell a number of other items I don't feel are sensible, such as ......a certain steel throw weight shaped like a torpedo being so actively promoted elsewhere.
Flushcut,
It's less a matter of the ascender getting smashed than what's going to happen to sheathed ropes (double braids, etc.) when that "toothed cam" locks on line tethering a XXX-pound log in motion. I've personally viewed the ripping that results on our 50-ton break machine (not with the ProKnot mind you). I think CMI initially built this by special request for an arborist in the area and then decided to market it. They say that several samples have been issued and that they've had no complaints.
I say if you can't tie or learn to tie a running bowline, you should find another line of work.
Flushcut,
It's less a matter of the ascender getting smashed than what's going to happen to sheathed ropes (double braids, etc.) when that "toothed cam" locks on line tethering a XXX-pound log in motion. I've personally viewed the ripping that results on our 50-ton break machine (not with the ProKnot mind you). I think CMI initially built this by special request for an arborist in the area and then decided to market it. They say that several samples have been issued and that they've had no complaints.
I say if you can't tie or learn to tie a running bowline, you should find another line of work.
- Location
- Retired in Minneapolis
A number of years ago ISC made a prototype double headed non-handled ascender. It was developed to take the place of friction hitches for DdRT ascent. The ISC version used a cam like they use in their rope grabs. The cam did not have the sharp teeth.
The prototype was never made with the intention of using it for rigging like this CMI device.
I sure wouldn't like to see it being used for any sort of rigging either.
The prototype was never made with the intention of using it for rigging like this CMI device.
I sure wouldn't like to see it being used for any sort of rigging either.
- Location
- Haddonfield, nj
It's not supposed to be about knowing how to tie knots, it's supposed to be about the efficiency of not having to tie/untie knots (supposedly it's faster with knotless rigging then with traditional knots. I can't say for sure because I've never used a knotless rig for more than a few trees here and there)
It absolutly seems sketchy but again I'd be interested to try it (for free of course)
CMI really should just make a video of it being destroyed, with proper documentation of course. I'm sure DMM impact block would have caught some slack for the hollow spindle had they not made a sweet video of them attempting to break it.
At least it's made by CMI who stands behind their products with a lifetime warranty and it's not by some boojii a$$ Italian manufacturer that can't handle simple warehousing tasks let alone make quality gear.
But man are they good at cutting checks to all the wrong people
It absolutly seems sketchy but again I'd be interested to try it (for free of course)
CMI really should just make a video of it being destroyed, with proper documentation of course. I'm sure DMM impact block would have caught some slack for the hollow spindle had they not made a sweet video of them attempting to break it.
At least it's made by CMI who stands behind their products with a lifetime warranty and it's not by some boojii a$$ Italian manufacturer that can't handle simple warehousing tasks let alone make quality gear.
But man are they good at cutting checks to all the wrong people
- Location
- Netherlands
way to early for aprils fool ;-)
.....looks like a toy that ends up somewhere and not to be used ever after ....
climb safe - keep it simple
.....looks like a toy that ends up somewhere and not to be used ever after ....
climb safe - keep it simple
flushcut
Been here much more than a while
- Location
- Delavan, WI
[ QUOTE ]
Flushcut,
It's less a matter of the ascender getting smashed than what's going to happen to sheathed ropes (double braids, etc.) when that "toothed cam" locks on line tethering a XXX-pound log in motion. I've personally viewed the ripping that results on our 50-ton break machine (not with the ProKnot mind you). I think CMI initially built this by special request for an arborist in the area and then decided to market it. They say that several samples have been issued and that they've had no complaints.
I say if you can't tie or learn to tie a running bowline, you should find another line of work.
[/ QUOTE ]
I don't think that device is a good idea for any kind of rigging because you know some guy out there is going to "push it". I have seen a sheath get ripped on a job, and that was after a very short tumble of a climber and not 500lbs. Like you have said if you can't tie a running bowline you should not be in the industry. I like my knots and go knotless where possible but now adding a mechanical device into the mix, no thanks.
Flushcut,
It's less a matter of the ascender getting smashed than what's going to happen to sheathed ropes (double braids, etc.) when that "toothed cam" locks on line tethering a XXX-pound log in motion. I've personally viewed the ripping that results on our 50-ton break machine (not with the ProKnot mind you). I think CMI initially built this by special request for an arborist in the area and then decided to market it. They say that several samples have been issued and that they've had no complaints.
I say if you can't tie or learn to tie a running bowline, you should find another line of work.
[/ QUOTE ]
I don't think that device is a good idea for any kind of rigging because you know some guy out there is going to "push it". I have seen a sheath get ripped on a job, and that was after a very short tumble of a climber and not 500lbs. Like you have said if you can't tie a running bowline you should not be in the industry. I like my knots and go knotless where possible but now adding a mechanical device into the mix, no thanks.
- Location
- Longmont, CO
[ QUOTE ]
way to early for aprils fool ;-)
.....looks like a toy that ends up somewhere and not to be used ever after ....
climb safe - keep it simple
[/ QUOTE ]
I agree.
way to early for aprils fool ;-)
.....looks like a toy that ends up somewhere and not to be used ever after ....
climb safe - keep it simple
[/ QUOTE ]
Tobe_Sherrill
New member
- Location
- North Carolina, USA
[ QUOTE ]
It's not supposed to be about knowing how to tie knots, it's supposed to be about the efficiency of not having to tie/untie knots ...
[/ QUOTE ]
Don't get me wrong, there exists no bigger fan of efficiency, I just don't think effectiveness outweighs risk in this particular solution.
It's not supposed to be about knowing how to tie knots, it's supposed to be about the efficiency of not having to tie/untie knots ...
[/ QUOTE ]
Don't get me wrong, there exists no bigger fan of efficiency, I just don't think effectiveness outweighs risk in this particular solution.
chris_girard
Branched out member
- Location
- Gilmanton, N.H.
I'm with Tobe on this one all the way.
I won't be using one.
I won't be using one.
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