Drenaline milk

[evo]

Not really sure which sub forum to put this.

I bought a new 150’ hank of drenaline a few months ago. I paid for a extra sewn eye with a note asking that if the rope is known to milk to please stitch up the other short cut off I bought for a lanyard.

Drenaline milks. Been swapping ends so the cover bagged up near both sewn eyes. In a fit of rage I cut off both splices to milk the line out.

Now after a few climbs with the akimbo, and a little more milking and trimming. I’ve noticed a few strands in the core are uneven on both ends. Not by much but 1.5” on either side, this is like a radical taper where the ends graduate from shortest to longest.

I’m not overly concerned, but it has me thinking about the guts of the rope. Either some strands have slipped from one end to the other. Or bunched up somewhere mid line, or some have stretched and others have not?!

Could this be just a kernmanle thing? Weird manufacturing issue? Or climbing with the Akimbo stretching the outter strands of the core while leaving the deep guts alone?

I climb srt, ddrt, wet or dry.

 

[Brocky]

To make ropes flexible and with some stretch, the core strands sometimes are slightly kinked to allow this, and with the ends not sealed, can be disturbed. Some ropes, if the cover is slid back and tried to be milked back, the core can’t be fully covered due to the core strands kink straight in gout getting longer. Shouldn’t effect the strength or stretch, but you should melt the ends if you think the slack is out.

 

[evo]

To make ropes flexible and with some stretch, the core strands sometimes are slightly kinked to allow this, and with the ends not sealed, can be disturbed. Some ropes, if the cover is slid back and tried to be milked back, the core can’t be fully covered due to the core strands kink straight in gout getting longer. Shouldn’t effect the strength or stretch, but you should melt the ends if you think the slack is out.

Thanks! I was also thinking it could have been from the stitched eyes, capturing half the core not fully allowing those strands to break in the same as the others.

 

[Z'sTrees]

I haven't had any huge problem with mechanicals but I was running a hitch off the crane ball and the jacket was bunching up and causing issues descending. I have a slaice in one end and whipped the other fwiw

 

[Brocky]

Thanks! I was also thinking it could have been from the stitched eyes, capturing half the core not fully allowing those strands to break in the same as the others.

That’s definitely a possibility.

I haven't had any huge problem with mechanicals but I was running a hitch off the crane ball and the jacket was bunching up and causing issues descending. I have a slaice in one end and whipped the other fwiw

If you like the slaice, open the other end to milk out the slack, and then reseal. I would be interested in buying the slaice part if you don’t like it, would like to take one apart to see what’s going on.

 

[Leroy]

came here looking for the new badger milk, leaving disappointed

 

[Z'sTrees]

I like the slice just fine, a little strange at first since it's basically just the jacket folded over, buried, and stitched.
Not really my favorite rope though. A bit too bouncy for an srt line.

 

[evo]

I like the slice just fine, a little strange at first since it's basically just the jacket folded over, buried, and stitched.
Not really my favorite rope though. A bit too bouncy for an srt line.

Isn't there some dyneema sewn into the cover for the eye? I agree, for long hauls over 50' it's no better than tachyon I was hoping for it to be like yales 11.7's

 

[JD3000]

Anything with nipples can be milked.

 

[evo]

Anything with nipples can be milked.

Correction any gland can be milked

 

[Brocky]

Yes, there is some dyneema webbing in the eye, and somehow joins with the core, and is then sewn to hold it together. There might also be mystical magical words that must be repeated while it is spliced.

 

[Leroy]

 

[SomethingWitty]

Yes, there is some dyneema webbing in the eye, and somehow joins with the core, and is then sewn to hold it together. There might also be mystical magical words that must be repeated while it is spliced.

Didn't I see a fairly in-depth slaice diagram explaining how they make it work?
I could be imagining things, but maybe not.
I would guess that the webbing ends at two points that are slightly staggered, and both overlapping some core, possibly half and then more like three quarters an inch or so further in.

 

[evo]

Didn't I see a fairly in-depth slaice diagram explaining how they make it work?
I could be imagining things, but maybe not.
I would guess that the webbing ends at two points that are slightly staggered, and both overlapping some core, possibly half and then more like three quarters an inch or so further in.

Sounds like one needs to get dissected. I imagine they pull the core out cut and stitch one end of the dyneema, then bury into the cover and bury into the rope and sew the crap outta it.

 

[SomethingWitty]

Sounds like one needs to get dissected. I imagine they pull the core out cut and stitch one end of the dyneema, then bury into the cover and bury into the rope and sew the crap outta it.

I'd climb on that.

 

[Brocky]

The lengths of bury and overlap of the core and webbing are the parts that are the mystery.
Edelrid has a flexible eye now, that they say are rated to 15kN, which I’m guessing means it’s to be used in a Moving Rope system only.

 

[southsoundtree]

Ya, I thought this was in the tree-free and was the new hippy beverage.

I think only mammary glands can be milked.

Popping zits is not 'milking'.

 

[evo]

Ya, I thought this was in the tree-free and was the new hippy beverage.

I think only mammary glands can be milked.

Popping zits is not 'milking'.

Also you can milk venom from a snake, but the imagery is boring... Don't forget milking sea cucumbers.

 

[JD3000]

 

[Boconnor303]

My one end sewn drenaline did the exact same thing, milked 2-3 feet. I cut it off and noticed the same thing about the core strands being different lengths. I stopped using it with my Akimbo and ran my Tachyon to break in the device.

Still havent run my Akimbo on the drenaline again due to weird flat spots that wouldn't round out and creeping issues. It has been used with my wrench though and hasn't milked anymore