Compact Bulldog Bone

CutHighnLetFly said:
Thought I picture went with the post of mine that I reposted, didn't realize it didn't. Let me know if you still want a picture. I can post a new one, or you can chase the old one I posted one page 153 of this thread.

Took me forever to locate that old post I forgot I late in the game I already was when I got my BDB!
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@CutHighnLetFly found the key ring mod picture from your post on pg. 153 (thank you for knowing what page it was on instead of sending me on a wild goose chase lol )
Dude thats unfortunate about the S-clip and key ring. The key ring's ability to come on/off to experiment bollard sizes is a great thought, but honestly I would be worried about it getting caught on just about anything, possible getting hooked and bent open, falling out etc. The cotter pins are just easier to trust because they are part of the original design, but i still commend your thought process with the key ring, because it partially solves that cotter pin install/uninstall difficulty issue. Anyway, thank you.
 
Here is a picture of what has been referred to as the BDB XL, which seems to suit this Bone. It has a 5/8" dia. x 0.58"wide steel bollard from a size 80 roller link on the top arm, with a short pivot length and short Hook end arms like the bottom arms. This Bone is a dedicated Vortex use SRT device. I have removed a wee bit of material (0.035") at the snap swivel link, which makes it easier to load the fat Vortex line. It also has a stainless steel and nylon standoff at the top of the spine to hold the shorter top arm from collapsing too much.
EVgykQA.jpg
 
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Wow! I really like that, Gordon. I'm a big fan of having the extra hooks on the supporting arms on both top and bottom.
 
Hey guys, I was hoping to get some advice so I don't have to scroll through 199 pages of this thread to figure it out. I got my bone a while ago (year or so). I had no issues with the bollard which came installed on tachyon. I havent had the chance to climb in a while, more supervising, etc.. I used it yesterday and found myself dropping on descents. I have gained a few pounds, so I'm about 185 from 170-175. Would that make enough of a difference?
 
Ryan Keats said:
Hey guys, I was hoping to get some advice so I don't have to scroll through 199 pages of this thread to figure it out. I got my bone a while ago (year or so). I had no issues with the bollard which came installed on tachyon. I havent had the chance to climb in a while, more supervising, etc.. I used it yesterday and found myself dropping on descents. I have gained a few pounds, so I'm about 185 from 170-175. Would that make enough of a difference?
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Take a look at the bone spine. If there is a solid groove formed, that may have slowly lessened the grip.
Happened to me after two years on Yale 11.7mm after I started running cougar for about 6 months. My solution was to just flip the spine to the unused side. Problem has been solved ever since.
 
CutHighnLetFly said:
Take a look at the bone spine. If there is a solid groove formed, that may have slowly lessened the grip.
Happened to me after two years on Yale 11.7mm after I started running cougar for about 6 months. My solution was to just flip the spine to the unused side. Problem has been solved ever since.
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Do you mean disconnect the center piece (that being the spine?) with the hole in it and turn it over?
 
wyatt spruck said:
I'm not sure what the purpose of the hitch/ocean vectran thimble is.

Interesting though. Wonder what it's for...


Sent from my iPhone using Tapatalk
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Yeah, that is my setup in those pictures. I did the thimble as a backup when I first got the bone as I was uncertain about an all mechanical hitch. I got used to it, then started using a dual bridge where the thimble is connected to one bridge, and the bone to other the other bridge. I figure if for some reason a bridge would break (0.000001% chance) I would be backed up on the other bridge. When descend, I just pull down on the thimble hitch and compress the Bone and all is fine. On ascent, I usually keep a hand on the thimble hitch to help it move up the rope and not impede the bone. I only had the Bone slip one time, on very wet rope, and the thimble hitch stopped me.

I am happy with my Bone, a little over a year, on Cougar rope.
 
rbreesems said:
Yeah, that is my setup in those pictures. I did the thimble as a backup when I first got the bone as I was uncertain about an all mechanical hitch. I got used to it, then started using a dual bridge where the thimble is connected to one bridge, and the bone to other the other bridge. I figure if for some reason a bridge would break (0.000001% chance) I would be backed up on the other bridge. When descend, I just pull down on the thimble hitch and compress the Bone and all is fine. On ascent, I usually keep a hand on the thimble hitch to help it move up the rope and not impede the bone. I only had the Bone slip one time, on very wet rope, and the thimble hitch stopped me.

I am happy with my Bone, a little over a year, on Cougar rope.
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Hmmm. Interesting.

First off do what you think is good for you...that is all that matters...the rest is conversation and matters less :-)

I don't use anything but the bone, but can see some potential comfort with a back up for ascent. A few times - and as far as I am concerned never dangerous - I have had the bone slip a little on set back or an odd section of rope. Very seldom but a few. FWIW since getting the adjustment arm it hasn't happened BUT having a little something extra may make folks feel better. Your way is fine, maybe another hand or other ascender with lanyard to your bridge too would work. However, on decent I have no concerns especially with a lower tending hand and I would find the added "feature" problematic. I was going to say pain-in-the-ass but thought that was too strong :-)

Anyway, thanks for making me think on this some.
 
Sterling Scion blue pretty fresh off the reel performed awesome with 5/8 bollard today. The line definitely stores up some energy, little more so than tachyon. Stays firm ,although I didn't go up and down over the same section that often due to the tree and the work ..flows very nice in bone.. Long bombs it still glided well to a nice stop. Overall liked the feel.
 
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