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  1. TheTreeSpyder

    A Teenage Tragedy

    The other haunting local nightmare i didn't have to be there to feel the chills is a tale of 3brothers, 1 of the remaining told the story. All worked together as a well known local tree service bearing the family name. . This man told a story of his brother he had always known, even sharing the...
  2. TheTreeSpyder

    This is rigging!

    Looking at 1D cosine as 1D rope support column(s) against Load, Load = Number of equivalent support columns X (cosine of 1 support column xTension). If multi-legs (2) of support, for cleanest number examples must assume self equalizing (pulley on Load). . Cosine = 50% @60degrees deflection...
  3. TheTreeSpyder

    Easier to let it run w/ lrg. or med. Port-a-Wrap?

    Yes. Abso-friggin-lutely, and Radial is always different than Linear is what Ancients tried to tell us so long ago!! . Compound frictions(radial only) can work very hard against ye, or may be commanded under your employ. Linear frictions increase more simple scalar; 2x as far = 2x as much...
  4. TheTreeSpyder

    Distel hitch... Ba da ba ba ba (I'm lovin' it)

    Looks like are showing double pull of half weight style in the 2stage and extended friction list in 1/2" on 1/2"? Same rigidity? Go fatter then host with these systems? . edit: Serial dual systems work in other stuff rope and other as primary system hitting pretty hard, but leaves some minimal...
  5. TheTreeSpyder

    aluminium port-a-wrap. is that a bad idea?

    i have the most faith in the math describing the organic pattern; the logistics of the formulae very sound. i have the least faith in yes people's assignment of materials mated to particular CoF values . These are meant to be guidelines, and also conditions subject to contaminants, or even...
  6. TheTreeSpyder

    Distel hitch... Ba da ba ba ba (I'm lovin' it)

    Wow Brocky! . i think these Friction Hitches in general are all tune-able mechanics in some ranges. . The 2 stage Friction Hitches with hardware in the primary raw force stage_1 and then a choice of all rope Hitch in upper stage_2 seem quite logical progression(also with heatsink in stage_1) and...
  7. TheTreeSpyder

    A Teenage Tragedy

    A chipper is as if a monster kept slave; forced to chew wood, while connives how to get the meat and blood it actually craves. Anytime go near the thing, know that is what are dealing with ! See the monster, and know that this is no game. . Went to a local funeral of such an accident. It was...
  8. TheTreeSpyder

    Easier to let it run w/ lrg. or med. Port-a-Wrap?

    No, sorry just closed that out this week and not cleaned up sigs on sites. Not sure of next direction at this time, kinda have accumulated a lot.
  9. TheTreeSpyder

    Easier to let it run w/ lrg. or med. Port-a-Wrap?

    Linear is easier to predict and understand, and more in the terms we intuitively expect, even when looking at radial. Radial anything has surprises by comparison; the Ancients tried to highlight this key point to survive this long to us. . In theory, a larger radial is easier arc on the rope...
  10. TheTreeSpyder

    Why 1/3 notch depth?

    Starting or changing the depth of the face cut; changes front face position of mechanically the most key central pivot, benchmark to measure everything in terms of distance/angle from. Unless backlean, then is a key receiver not an initial position. . Treat as tree is weightless rigid form...
  11. TheTreeSpyder

    aluminium port-a-wrap. is that a bad idea?

    Don't have access to such toys, sorry. Mainly chasing the maths here, of what happens at what CoF, materials just representatives of those numbers. They should be good tho, at least tested by others more reputable. Nylon on Steel CoF from Engineering Toolbox shows the LINEAR FRICTION standards...
  12. TheTreeSpyder

    aluminium port-a-wrap. is that a bad idea?

    Such wear scary on especially assumed bombpruf position, by softer material . Such imperfections in future at high load creep/movement could severely wear softer parts/ropes sooner than later; if not immediately? Micro fissure cracks is great fear in metal support /connection structures. . i'd...
  13. TheTreeSpyder

    Going in for surgery

    wow, sorry late to the party, many miles shared here and before; Godspeed sir
  14. TheTreeSpyder

    Munter hitch for lowering limbs

    Life on a Line is a remarkable background work, original version was free. . Radial friction compounds; different compared to linear/flat friction linear progression. Both use the same standard CoF numbers for mated surfaces available at several sites , even gov tables as accepted standards...
  15. TheTreeSpyder

    Why 1/3 notch depth?

    i never did this, but when seen such pix etc. always think might be safer to rip down at this point w/o man in batter's box/KZ; or maybe (s)light back cut, evac and high rope rip down as safest. Note how backward rip to round face concentrates to greater compression that is dispersed in proper...
  16. TheTreeSpyder

    Happy Mother's Day!

    (y) (y)..and those aspiring to be ! . In context of tree site, since trees have changed / re-birthed the planet to so habitable(except at it's extreme's) it almost seems more appropriate hear ! Perhaps the Lorax needs help speaking for those without tongues; whom have not only witnessed, but...
  17. TheTreeSpyder

    Why 1/3 notch depth?

    TYSM, forgot about that page in Fundamentals ! . The close to hop/pop can't be dainty, but rather daring. To get the response of the force out; must slap the force purposefully into the 'step'/stop like getting greater response from rubber ball against step/wall. Soft close, pause and slide...
  18. TheTreeSpyder

    Why 1/3 notch depth?

    Philosophically i think to see fully, must look at both sides of coin, why and why not. Play scenario forward and backward in head as well. Soundest solution should look sound from all these angles, as perfect storm to key points, like a martial art. If for nothing else than to move most...
  19. TheTreeSpyder

    drop cut. cutting limbs to fall flat down

    A lot going on in one of these cuts, and these same things set to full scale felling invite BC beast. This is a high stress against it's own wood deal. The full weight against it's own mirror, multiplied by speed squared to me. . i think of it just as Tom Dunlap said, mini felling as Dent's...
  20. TheTreeSpyder

    Why 1/3 notch depth?

    For me the 1/3 guideline always mostly meant hinge fibers then start further than 1/3 back , and their tensioned backfield even further back, more into 1/2 way range for hinge of most width. . Most width affording more side to side control, and a thinner/ more flexible hinge. Especially in the...

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