Compact Bulldog Bone

Been using bottom arm on occasion for slight movements ..puts bend in top arm that reminds me of the limb I take with me .:whistle:smooth
3/4 bollard with Yale 11.7 ivy super sweet flow
I love the dmm rhino under for connection to swival on bridge doesn't pass over the horn keeps bone in line ..no crossloading worries. Reaally sweet SRT ascender descender work positioning device !
 
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Yes an interesting attribute of the Bone is that it will release with either the top or the bottom arm. Glad it is working well for you, it sounds like you have it dialed!
 
Didn't take much surveyor it is very user friendly ! Amazing what changing bollard achieve with such minute differences with whatever rope the user likes ..great functionality all around ..well done :maraca:
 
Aaron Cipolletti said:
How long is the loop oceans ..couple of inches or...?
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Aaron, the loop is probably just under 2" long from the bone to the scaffold, AFTER it's been girthed in.

Another note on that...when I first started using the Bone, all I had in my bag to make use of was a retrieval ball, which I girthed on normally. Since I wanted the loop to stay open, I had the idea for the scaffold loop. I just lucked out when experimenting with the first loop I made.

The girth is actually doubled on mine, and the Bone is in the truck at the shop so I can't photo the thing, so bear with me...To form the girth, you equalize the loop in basket form on the Bone, then you work the scaffold through the bight twice and work it down tight. A normal girth would be able to work loose fairly easily, but if you use the doubled method, it's bomber secure.

Thanks to the chest harness, and the strong (but still really thin) line I used for the loop, I have a real solid setup. I've found that if I ever want to sit back in comfort while in free air, I can do so with confidence, either part way through an ascent, or anytime by just connecting the chest harness to the scaffold loop.

Also, I've been back on a Rope Wrench lately, for a few reasons ;), but I flew the Bone today in a massive Oak. It was redirect city with lots of spider drops into stations and back up to move on to another. I ALMOST forgot just how much I love the Bone. ALMOST! But after taking it on and off the line (probably 6 times) while redirecting, and never once having a drop hazard, the fond memories can right back....never mind how smooth this thing is for work positioning.
 
TreeLogic said:
When you say doubled girth do you mean like you tie a prusik?
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No, but good question. It's hard to describe, never mind execute. I'll try to throw up a photo...it's like a puzzle. You pass the girth, and then go over the bight and pass again.
 
Ok, here's what I've got for the tending loop. I pulled the tape off to show how the doubled girth was made. I hope it's visible. I also thought I'd bring home the Rope Runner just so folks might see a size comparison.
15058586033_e00783057c_z.webp 15492564448_000a469d99_z.webp
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oceans said:
Ok, here's what I've got for the tending loop. I pulled the tape off to show how the doubled girth was made. I hope it's visible. I also thought I'd bring home the Rope Runner just so folks might see a size comparison.
pRiYGS
oWFbZF
pB2rE9
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Your pictures didn't show for me Oceans.
 
I think I used the wrong code. I thought I had the photo posting figured out. Hmmm...
 
I give up trying to post photos for the night. I need someone to walk me through how to do it for the 100th time.
 
Alright guys, I couldn't walk away and tried to dig deeper into the post window, which then gave me options to upload files from my folders and it all came back to me. If you go back up to the post, you'll see the photos.
 
oceans said:
Alright guys, I couldn't walk away and tried to dig deeper into the post window, which then gave me options to upload files from my folders and it all came back to me. If you go back up to the post, you'll see the photos.
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Your a good man oceans for not being a quitter for one , and for posting a side by side of the two mechanical hitches that from what I gather are going to and should be taking the world by storm.. hopefully soon ..much respect goes out to the fine minds who produced these working works of art.
 
Thanks for the side by side picture Eric. That is a tidy loop you have tied, and I imagine it would allow the swivel link to be fully disengaged when taking the rope off and on. Mac has a very similar set up. I have started using all water-cut aluminum parts and the spine now has a "bump" at the tether point which allows for a 1/2" hole to facilitate the direct attachment of a small biner there. Perhaps Tyler would share a picture soon!
 
@ Aaron, thanks man! It bothers me too much when I know I've had an easy time doing something in the past and I'm missing a simple step...I just couldn't let it go. I do NOT hold grudges, though... LOL!!!

@ Surveyor, yes, the soft link stays put and allows for full function of all moving parts on the Bone. Mac has a pretty good egg above his shoulders, so I'm sure his setup is bomber.

@ Logic, yes the Bone is a bit smaller than the Runner. I think it just appears bulky due to the chain links, when it actually is as advertised...COMPACT. It should be known that the Runner would be slightly shorter with a climber's load on it, on a larger diameter line (as Tyler pointed out), yet the Bone would be as well.

In the 'side by each' (I love that phrase) photo, I hope people can take note of a few key differences in design. The Runner captures the rope with components from both sides of line, while the Bone pins the rope in from one side. This means the Bone does not have to come apart at all to be installed or removed from the climb line. The tending points are at almost identical locations in relation to their height above the bridge attachment, so one chest harness setup will work easily with both units. You can also see that they are oriented back to back. On the Runner, the "bird" faces the climber, and on the Bone, it faces away. This means they require completely different technique to operate, although the idea is the same.

Both devices are examples of elegant innovation. We are lucky to have them in our hands.
 
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