Compact Bulldog Bone

Here is a picture of the new Bones.

IMG_1237_zpsegqtad03.jpg

... PS - one of those is mine
 
I've got a question for all you who are used to the bone. I tried it out on some different ropes today and I made a video of one of them. If you pull yourself up on the rope and let go so you fall a short distance does your rope creep a bit and then stop? Besides that it seems to work really well.

Looks something like this.
 
me thinks Gordon is in north cackalacky, whilst I reside in northern californi. never been to the east coast but I like the Newhart show, that George Utley. how do I pm ?
 
Tomi, did you change the direction of the Spine? That is to say did you turn the spine so that the hole in the spine is on the rope side? What about the bollard is that the stock bollard?

Yes I did. And up side down as well so the rope has more contact surface. I didn't take a picture of that configuration but the rope is rather flattened in the other and the aluminium discoloured the rope. Not exactly a problem.

Picture of the unmodified pinto spacer installed.
e476e89bb07204e0d69cdfb68f40109e.jpg
 
Having the ability to slowly catch you is actually fantastic, if you are working on a very static line and slip it will absorb the fall instead of potentialy injuring your spine.

I completely agree with you and so did my colleagues. Some are very suspect of the bone and others are excited. I might have to get more of them in the future.
 
Yes I did. And up side down as well so the rope has more contact surface. I didn't take a picture of that configuration but the rope is rather flattened in the other and the aluminium discoloured the rope. Not exactly a problem.

Picture of the unmodified pinto spacer installed.
e476e89bb07204e0d69cdfb68f40109e.jpg

What you've done here seems quite genius, Tomi. I wish I had the same option, though mine are rather out of date and the spines are straight stock. In fact, one of mine is made from 3 year old OAR parts.

I was going to try a sort of "speed bump" mod with one of mine, for added friction at the lowers and improved feathered release of the uppers. It was brought to my mind from all the work that some climbers have done with the Rope Runner (monkeylove, tr33climb3r, etc).

I'm on the border line of needing a larger diameter line (due to my weight). I'm thinking this spine flip might be a good option for me. I guessing the hump must be clear during ascent or you wouldn't be doing that?

If that works out, maybe the hump could be machined into all newer spines at the center of the overall length and on both sides, giving the hump spine a 4 sided wear life. What do you think Gordon?
 

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