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  1. TheTreeSpyder

    Throw line/ throw weight thread

    more away from treework or as an impromptu tree service have used a mechanics rag with pebbles and dirt to deform easily as ball on paracord. Follows the theory well. . Throwline and bag easier to throw cleaner: higher and less frictions and catches, doesn't jam as easy.
  2. TheTreeSpyder

    Linear Force as a Dimension Model

    Everything has a (finite) peak potential for each of it's attributes: length, strength, force, speed etc. of a given material in scenario. This peak potential is only fully expressed/revealed when at the unique full alignment of support against load 100%. Like bowling ball balanced atop a pure...
  3. TheTreeSpyder

    Why tie instead of rigging carabiner?

    In all things, linear geometry is focused/specialized to 1 force axis of equal/opposites(minimal allowed); while round gives multi/all axises of loading 2D equilaterally (as globe/orb does in 3D). . Round carabiner is an undifferentiated, strength evenly dispersed profile iBeam brings more of a...
  4. TheTreeSpyder

    Bend radius for rigging

    The rope in it's elastic range, has a quantity X amount of rubber band yielding some shock absorber, more length in system gives more shock dampening. But, then for lesser loads, invading tensile capacity less, has then less elastic, more static response from rope. . model: BUT not more...
  5. TheTreeSpyder

    Bend radius for rigging

    i believe Blair was properly looking for potential force to define a finite region. Then would factor in elasticity as working within that domain, to yes lessen the hit. . A different rope, of different elasticity as a factor dialed up or down to a different yield, but always resulting within...
  6. TheTreeSpyder

    “Rope Only” Canopy Anchor??

    i like DBY for the cleaner eye more open to hit like large spliced eye, and am used to looking at it as inspection. Stiffer rope, remote repeated use may even get extra paranoia of overhand then around Standing Part fini. . i prefer to make by inversion, with the 2 colors showing on end as long...
  7. TheTreeSpyder

    “Rope Only” Canopy Anchor??

    The loaded axis of the Bowline is best end2eye, and for Butterfly as similar utility but end2end. . Many times have used throwline>>pull line into place >>Running Bowline eye on control side, with loaded side, Standing Part 'reeved' thru eye. On far side of eye can tie throwline already in...
  8. TheTreeSpyder

    Linear Force as a Dimension Model

    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. . Distance expressed in part or full is displacement against freespace; while force...
  9. TheTreeSpyder

    Another physics spinoff question - back leaning

    To me backleaners are different; we pull/push CoG up the hill to over the hinge pivot as highest CoG point, then past, to reverse the pivot from rear of hinge to front suddenly to then splash down on the front side. . Greater range of movement, more favoring a balanced load across w/o side lean...
  10. TheTreeSpyder

    Guy rope angle for side lean pull over

    To me, all is geometry of rigid force displacing against other. >>distance displaced against freespace, after displacing against forces matched. Can force hinge stronger in time before commits, by making fold earlier/thicker, as like training stronger like running w/50# backpack, to the release...
  11. TheTreeSpyder

    Bend radius for rigging

    Playing it backwierdz, to scale, immediately know/warn more force on cross axis to watch out for, than main target now at that efficiency ratio given is below 70.7%median as a benchmark: If 100# hang takes 150# of tension to be supported >>the 150# tension of POTENTIAL support is only expressed...
  12. TheTreeSpyder

    Bend radius for rigging

    Brummel is excellent theory, and maybe close enough; >>just going with model of imperfect exchange, always has to be some even trickle of friction etc. co$t of conversion(or maybe 'Kennedy bullet' would still be flying) . Some of my many lessons of Iron Cross on still rings chase in...
  13. TheTreeSpyder

    Bend radius for rigging

    Like a battery to circuit, the wiring of rope and host are unloaded until 'lit' by the initiating force of the load, then trace geometry. Electronics can give changes and commands by circuit, geometry is the mainframe of engineering both mechanics and position. SPart(Standing Part) is the...
  14. TheTreeSpyder

    Bend radius for rigging

    Yes, in Big Al's E=M(static mass of resistance against achieving dynamic state of change)xC(dynamic state of change achieved)SQUARED just as in total power in watts=wire resistance(nominal static against achieving dynamic state)x amps(speed of dynamic state achieved)SQUARED. It is the AMPS...
  15. TheTreeSpyder

    Bend radius for rigging

    Nice; Caught me by surprise until thought about it: Doubled, double the strength figuratively, drops elastic dampening response. >>does not invade (Max)'headroom' quite as deeply, so less elastic response in return.
  16. TheTreeSpyder

    Bend radius for rigging

    i think: The more a given rope organically resists bend, the more bend radius matters against maintained tensile capacity, the more harsher an impact it takes the deformity from pure linear column of force. >>larger diameter host also distributes wear and frictions/heat. Also where linear forces...
  17. TheTreeSpyder

    Bend radius for rigging

    All the math to me is 'simply' the same here and everywhere. The aligned directional dimension (cos=100%) >>and it's non(e) of the crossing dimension (cos=0%) as purebred extremes, as knowns that are totally void of each other as each other's non(e). >>only possible values of force etc...
  18. TheTreeSpyder

    Throw line/ throw weight thread

    i always thought throwline kit was cheapest tool that can also $ave the most money upfront at start of job... I prefer slipped anchor connection. Without BS I like spread balanced pendulum swing between knees. Pretty good at 'walking the dog' a bit, by snapping hard off lower limb to flip...
  19. TheTreeSpyder

    Physics Question: Basal vs Canopy Anchor Forces

    . Not inventor but accepted as lead capstan formula/root work to what i show :The Mechanics of Friction in Rope Rescue by Stephen W. Attaway, Ph.D. for the International Technical Rescue Symposium (ITRS 99) >>full kudos and many thinks for doorways opened. . Very sorry, seem to have somehow lost...
  20. TheTreeSpyder

    22 year old died in Florida yesterday.

    . i eventually had to go back and watch before page_3; to weigh for self; and don't do social media. Reading/hearing now about this stuff going online makes it even less likely will find time for social media. Not against it necessarily... . i think Steve speaks more royally/loyally of taking...

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