modified cam

Maybe a modified snap collar like this would make a good attachment ?  Easy on easy off? Would need to be ul maybe even plastic?

https://imgur.com/a/JQgygao

I'm still not getting the use case for this mod. What use/benefit - specifically?

Reminds me of this Kalquin Cam thing.  Cool concept, except the Kalquin has more of a use case (I guess it has a super wide range?)

https://kalquin.com/

This post violated Guideline #1 and has been removed.

Cherokee Nunes, if you can’t look at the video and make your own determination of what the purpose is, maybe you shouldn’t be climbing...or driving...or making any judgments about anything at all.

So I should just be able to divine the specific use cases the designer intended to address, just by looking at it? Well I didn't. It would be very useful to hear from the OP the specific use cases and goals he or she has in mind for this mod. I'm not looking for instructions, I am asking the OP for design goals. Maybe you know them all, just by watching a video.  

Cherokee Nunes wrote:

So I should just be able to divine the specific use cases the designer intended to address, just by looking at it? Well I didn't. It would be very useful to hear from the OP the specific use cases and goals he or she has in mind for this mod. I'm not looking for instructions, I am asking the OP for design goals. Maybe you know them all, just by watching a video.  

You get to eliminate about 8 biners on a standard rack

Michael Atlas wrote:

Reminds me of this Kalquin Cam thing.  Cool concept, except the Kalquin has more of a use case (I guess it has a super wide range?)

JokerPacin grande (2014)

Kalquin (2016)

Dan Daugherty wrote:

In my experience, those thing are notorious for pulling free under very minor loads so I'd never trust it. Plus, you mention eliminating 8 biners but don't explain how. I'm having to make assumptions since you are choosing to not explain your design goals so, are you eliminating 8 biners only to replace them with this contraption? I don't see a space saving aspect to this so it must be in the pursuit of weight savings. How much weigh will actually be saved by removing the 8 biners and adding hardware to all your cams to accept this thing? How does this attach to your harness? The most obvious choice is a biner... Also, how do you disconnect it one handed? Try as I might, I almost always need two hands: one to hold the tool and and one to hold the bit to use those things so I'd be pulling the collar and letting gravity drop the cam and hope I catch it all while hoping that any movement where something may rub against it doesn't lever the collar and drop what it's holding.

Concept of quicker access to cams is a decent one. This execution just seems wrought with too much risk and little benefit.

BTW, that link is just a link to a picture of a kobalt quick connect. No video and no explanation. 

It’s actually eliminating 2 biners with each placement because normally we would attach a runner to the cam that has 2 biners.  In this case the sling is built in and we just clip the rope directly .

Dan Daugherty wrote:

In my experience, those thing are notorious for pulling free under very minor loads so I'd never trust it. Plus, you mention eliminating 8 biners but don't explain how. I'm having to make assumptions since you are choosing to not explain your design goals so, are you eliminating 8 biners only to replace them with this contraption? I don't see a space saving aspect to this so it must be in the pursuit of weight savings. How much weigh will actually be saved by removing the 8 biners and adding hardware to all your cams to accept this thing? How does this attach to your harness? The most obvious choice is a biner... Also, how do you disconnect it one handed? Try as I might, I almost always need two hands: one to hold the tool and and one to hold the bit to use those things so I'd be pulling the collar and letting gravity drop the cam and hope I catch it all while hoping that any movement where something may rub against it doesn't lever the collar and drop what it's holding.

Concept of quicker access to cams is a decent one. This execution just seems wrought with too much risk and little benefit.

BTW, that link is just a link to a picture of a kobalt quick connect. No video and no explanation. 

Dan, look at the link at the beginning of the tread. You just wrote a super long post that has no relevance to the cam design at all. When looking at a post try starting at the beginning instead of the middle. 

Better nail your placement on the first attempt. 

Maybe it is just me, but [when crux'ing] I find myself clipping the rope, then gaining my composure, and then adjusting the placement for the better. 

Also: racking biner sometimes goes into mouth first, prior to placing. What if that thing just fell out and extended at that point? 

Premature protection. 

Not something you want to suffer from. 

Matt N wrote:

Better nail your placement on the first attempt. 

Maybe it is just me, but [when crux'ing] I find myself clipping the rope, then gaining my composure, and then adjusting the placement for the better. 

Also: racking biner sometimes goes into mouth first, prior to placing. What if that thing just fell out and extended at that point? 

Premature protection. 

Not something you want to suffer from. 

Assuming that the connection between those two parts could not be reliably secure would indicate an immense lack of imagination. A trait the OP seems to have in abundance. 

Dan Daugherty wrote:

If the requests for an actual explanation of the design weren't being met with your unnecessary snarky responses or the OP's one sentence quips that don't answer the questions asked, maybe we wouldn't be left to assume.

That's where the link takes me. Maybe it went to a video originally, but that's not where it goes now.

Mate, there's two pages to this thread, you need to go back to page one and click the YouTube link. 

Or just look at this link.

https://youtu.be/ePTujhiQVbs

Dan. The beginning of this page is not the beginning of the whole thread. You are on page 2. There’s usually a page 1 before page 2.

I do find it amusing that we have people getting down on a guy for getting a little creative and outside of the box with a gear mod in the same thread as people who can't figure out how forum threads work.

I already have cams with extendable slings and I didn't have to disassemble the stems to do it. 

That's why I asked the OP after the use cases and design goals. Mums the word, thus far. So I'll keep my assumptions to myself and hopefully the OP chimes back in.

Cherokee Nunes wrote:

I already have cams with extendable slings and I didn't have to disassemble the stems to do it. 

That's why I asked the OP after the use cases and design goals. Mums the word, thus far. So I'll keep my assumptions to myself and hopefully the OP chimes back in.

The use case is actually a bit enticing as worst case scenario for a double rack + 12+ slings you are looking at 40+ biners.  Even with lightweight biners @ 30g, that's 2.5 pounds of biners.  Say you had a full rack of these cams, you would theoretically only need a 1/3 of those biners, which would shave nearly a pound off your rack.  

The weight savings use case would obviously get reduced for harder trad climbs where you are typically carrying less gear.  

Another consideration is the potential for all these cords / slings to get tangled up once you have a full rack of them pre-clipped vs. girth hitched into these modified stems.  

Thanks Mihaly. Nothing in that design video precludes a climber from adding an extendable sling to a cam config but keep the stem intact. I can see tons of potential issues with a deconstructed stem and I don't really see any benefit, at all. Hence my open question to the OP. Oh and there was that cognitive dude up thread that has it all figured out but he went mum too. 

Lastly, a few over the shoulder slings, with 1 biner each, is a time honored way to get extensibility without having to jury rig a bunch of cams and create an attendant cluster fuck of cords dangling from a rack. 

279/5000

sometimes strange journey in the human mind reading comments ... I thought it obvious that the purpose of modification was not for the art of modification but to indicate a possible future constructive direction ... regarding the advantages and disadvantages, it is useless to talk about it so much ... you have to try you have to try ... the future will tell us the truth ... just in case remember who showed it to you first! greetings to all (even the detractors)

Dan Daugherty wrote:

Honest mistake. I don't get your need to be a douche about it.

Cam with built in extension. Great. Still don't see how this hasn't been addressed or how it saves biners. If you don't want two biners on your extendable draws, only put one on it and clip to the racking biner.

You should see some of the original drawing for some of the things we use everyday .  They all start out like this unless you work for a big corporation.