As i know them, these are the UNIVERSAL rules.
Linear Force as a Dimension Model; also fully implies the same rules about length or distance expressed, because force and (more visible) distance are reciprocals.
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Distance expressed in part or full is displacement against freespace;
while force...
This has been a great friction hitch for me for UTILITY use;
It is a Blake's -1 turn as pre-fix and post-fix of uninterrupted Round Turn(RT) as work horse.
i recommend using for life/rescue proven hitches, this is easier to make tho for other stuff.
Actually before "Blake's" was popularized thru...
@Tom Dunlap sig.
i can understand what you are saying here over the years, and seen some reasons for it.
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But what do you call it when tracing down knots, mechanix etc. for 20,30,40 yrs relentlessly and sift linked common principles across all, even from different fields for ages of aha's...
HFP, Slippery 8 / TALK (Totally Adjustable Loop Knot) is a newer knot.
Thus not as proven, so still relegated to utility, rather than full rigging and rescue usage.
But shows much utility and promise, in an adjustable, Bowline-esque, terminal/end fixed eye.
Conceivably can be used midline as...
Pre-ramble:
i can now truly say that rope has fascinated me from 6-60!>>So much so writing this on vacation!
i have re-sharpened my definition of our friend rope many, many times.
i'm always trying to tell rope's story better; so once again will try to describe what i think i see.
i pull from...
We's kicked this around elsewhere's; and to me, important enough to infect here also...
WARNING: long conceptual post ahead; challenging some popular concept's imagery
>>some would advise de-tour now ;brain in tact; instead of change everything!
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Simplest CoG(Center of Gravity) expression...
Test Flash build series of conversions to then show on youTube.
>>presently slideshow stills, but working towards animation sequences(biology, hinging, knotting etc.)
>>next: should see where left opening to show BBR, pre/finishing cuts to fight fiber disruption in finishing cut,undercut...
Rope/flexible devices have mechanically correct usages just like ,
building materials and car alignments/non_flexible devices.
But even more so, because what allows rope to so easily fold up into nothing at end of workday;
also limits flexible devices to only supporting on the inline/major...
i was 135# dripping wet, rescued 360#man (that thought he should climb despite his epilepsy) i had 1 pulley ran up tree with...
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i remember that big bear's furry arm darting out trying to grab me like a drowning man; as i went straight to him,
i said oh no, went overhead to lift out rather...
MTL/forces_sweat.swf
With barely no tools (load, line, anchor) can leverage line more than with a pulley.
Shown in "Rigger's Apprentice" (Brion Toss)as line Sweating;'
and in "Moving Heavy Things" (Jan Adkins) as line swigging.
To understand rigging and climbing on rope, i think it is best to understand the forces in rope. Also, the same science will hold true within the microcosm of a knot, commanding it's properties.
To live on rope, dependent on it for support, rigging , pulling, knotting, tie down etc. all day...
Basic Halfs
This .swf on Basic Half Hitch forms presents a number of lacings, animated, fades, text etc. yet is under 40k. 40k size is about what one might see on a single knot pic.
i always envisioned this in a book form, like animation on left page, and text on right facing page:
Book...
Lacings 1662, 1663, 1707 all show Half Hitches that are alike, save for the position of the nip / Hold fast/ pinch that holds the knot. 1662 is the worst, where the nip is close to the Standing (Tension) Part, where the forces pull away from the spar most. A slipped Half (1664) is higher...
21xfrom a 5xRig and a 3xRig
By insetting the 3xRig (and not just piggy backing it on end of 5xRig) we can tap into the Equal and Opposite forces of the 3xRig that are promised, and use those forces to add more advantage.
Now if the person pulling, insets themself inside of the 3xRig the same...
Our Steve Bullman that has contributed to many forums has started his own forum flavour called Arb Talk. Steve has shown his own even style for years; and i'd expect his hosting to be more of the same.
It may seem like we have enough forums; but each forms it's own life and personality. Plus...
A climber operating/moving on a standard DdRT; controls 2 legs of pulls on themselves by a single leg adjustmeant of the friction hitch; for a 2:1 lift or lower (at a theoretical Zer0 friction at the support).
This 2:1 can be also employed in a rigging by the climber iff(if and only if)...
Sermon : \"Cleanliness next to Godliness\"??? a rant
Maybe in our worlds order is so right, and in surgery-sanitation is so right. It seems that this visual ordered sense of balance is so important that it is even part of our mating etc. Outside of our own, extending this type of order seems...
This shows how line angles affect loading on different positions. This gives the forces of speedlining, sweating, pulley angles, choke teepees etc. and perspective power losses and gains all at once; as the same science.
The pulley and the yellow bolt/rope anchors are all draggable to adjust...