It does not automatically do so, depending on how it is tightened, and on the friction characteristics of the cordage used. Referencing a photo from my previous post
Hello bipoqid,
This is one of the finest examples of obfuscation that I have ever read!
If you are going to post on this forum - please understand that you must be willing to accept critique.
The false Zeppelin bend (aka 'Voldemort bend') transitions from its unstable
dressing state to its final dressing
when load is applied. In some cases, the transition may only be
partial (as you have pointed out) - likely a phenomena related to sub 9mm cordage and how the person pulled on each of the 4 rope segments when setting the knot. Even in a partial transition, the appearance changes as the collars begin to collapse and morph. This partial transition will progress further if load
increases. And in the end - as load is
further increased, the structure will continue to morph to its final stable state as I have earlier depicted. The structure appears to be vulnerable to jamming. Your assertion that the 'Voldemort bend' doesn't always morph from its initial dressing state is
conditional in my view - as stated above, certain conditions must be met. Even if those conditions are met, there will still be a partial transition/morphing - which will change its appearance.
Your photography is potentially misleading in my view (camera angles - lighting, mono-colors etc). However, I reiterate that its all based on
outward appearances.
I can immediately detect the difference between the two knots - despite your careful dressing and careful use of camera angles and mono-colored cords.
Your entire premise is based upon
outward appearance rather than
underlying structure. The underlying structure is key to understanding knots as force machines (ie discussions focused on tying methods and
outward appearances usually lead up dead-end alley ways). Which leads to me to believe that you lack understanding of the underlying structure and orientation of the
loops from which symmetric bends are created.
A
dressing state - imputes a geometry of a transitory nature.
Canyoning, climbing, abseiling, caving etc... all involve the use of
human-rated ropes/cordage (eg EN1891 / EN 892 / EN564, etc). I have a vast array of 10mm-13mm ropes and cordage in my collection (many makes and models) - and I have yet to see the 'Voldemort' bend remain fixed in its
transitory dressing state. It always morphs to its final dressing when load is applied. One only has to look closely at the physics of how force is acting on the structure to understand this. The SParts are applying
differential loading across the central axis which triggers a state change. The result of this injection of force is the structure morphs under load.
To repeat again - in case it wasn't clear - your entire premise is based upon
superficial outward appearance and not the underlying structure upon which symmetric bends are built.
The reason why some prefer to attach the label of 'False Zeppelin bend' to your 'Voldemort bend' is because of
underlying structure (not superficial outward appearance). I am of the view that you still don't seem to understand that crucial and salient point.
Now - there is one aspect amongst this obfuscation that I concur with - its that I like the name 'Voldemort bend'.
Mark G