• theTreeSpyder's Avatar
    5 Days Ago
    theTreeSpyder replied to a thread Rope in Gear Forum
    . For screw links i prefer 7 screw threads, more than only 4 etc. >>Smaller diameter stock than standard carabiner for same strength Finger tight, might have to wrench loose. >>sometimes finger tight -1/8 turn so can't jam impact to seat past finger tight(hopefully)for production use exception would be remote or permanent use:seat strong. >>can also add Locktite, but has grit and input more torque for same seating.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    1 Week Ago
    theTreeSpyder replied to a thread Rope in Gear Forum
    Another Best/required reading, free online production is Life-On-a-Line Dr. D.F.Merchant A very passionate plea for rescue correctness, and the means to do so! Constantly come back to Pure Inline models of this correctness in all forms here too from educated author. . Stronger Fig.8 via softer arc thereby closer to straighter line(s) of support: . AMEN: ABSOLUTELY SAGE ADVICE FOR LINES AND THEIR BUILDS: . . Personally would give Spanish Windlass (tourniquet twister with stick) to tighten brace lines for stakes. >>But even in these extraneous examples, the Pure Inline mantra fits! . This and previous book / above Technical Paper BOTH, Very Strongly helped build my views and understandings of working rope. above Technical Paper: The Mechanics of Friction in Rope Rescue presented to International Technical Rescue Symposium 1999 by Stephen W. Attaway:GA.Tech Masters Structural Engineering + Computational Mechanics (modeling stresses, displacements) Ph.D. >>mostly for Porty friction model, to then extend to ALL knots, but then also sift out some yin-yang/reciprocal force of grip on host math in the successive half circles quoted (friction co-efficient removed) to explain differences shown AND as a separate exploitable/valuable item of it's own inside the secret world and force lines of knots, et all working rope. . Even the 2nd best selling MILLENNIUMS old text in the world of all time and likewise core of human thought and development stands as: "Euclid's Elements" (of Math, Geometry, Logic etc.) points to sifting to straight line models! >>#1 strategy of digestion and sorting; and what to chase thru there lists as: i find the 'Pure Inline' mantra here too. Seems like they were talking about us: force, rope, wood, straight lines etc.! . educatedclimber.com/ashley-book-knots/ (.pdf) remains the best all around reference; now seen online. But, the books above present more openly the base , 'abstracted' principles for weighing and measuring all rope works for me; that i always try to more manually sift and 'abstract'; on own from Ashley; to these the fewest to remember as most deep, pivotal points.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    2 Weeks Ago
    theTreeSpyder replied to a thread Rope in Gear Forum
    More hook imagery as decision making field guides:
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    theTreeSpyder replied to a thread Rope in Gear Forum
    My 'hook' imagery of proper right angle support of rope pull as ABoK shows as best >>Then multiple bearings (not solo) of pull for 'lengthwise' pulls as an errant angle of pull. . Replacing the rope hug effect of sides collapsing in to support (like rigid metal doesn't)with steel no hug >>more clearly shows the needs of the linear pull load of the system >>rope hug should be extra pepper, not main dependancy! . Specifically here of course as anchor for all the brake forces shown above to be applied against >>but applies to all such geometries of pull, in flexible and rigid devices. . Pile Hitch is great study of 2 well known base knot forms combined and interwoven where each lowers the loading to the other!
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    Thoughts. . Between first flex of hinge and when it is fully committed to fall on own is what i refer to as 'first folding'. >>twilight between stand & fall, during which can temp spoof more support need, to get response of stronger and more persistent birthed hinge. Just as teen temp lifts weights to exercise to more persistent strength in larger man. >>then extra load or weakness is resolved when tree becomes committed (lifts off of wedge etc.) So is stronger AND pulses back as 'lighter' in system vs. comparison of regular strength/thickness and faux starting load. >>The lighter load effect can impact pulse back thru system against load as a support, muting some of leverage increase as tree lunges forward. . The geometry shows the potential of the system (like a motor's limit), the species/condition limits what can be done within that potential before tree as force conductor is overwhelmed >>Like same motor potential, connected with lighter gauge wire, can't reach the machine potential because force conducting device overwhelmed when raise amperage to motor. Potential range is the same, just lesser wire/tree could not handle conducting produced forces. >>knowing geometric (motor architecture) potential and what system 'gauge' can deliver within that potential can tell what can be done. . BUT in this 'birthing period' of hinge strength, we can also go the wrong direction and baby hinge 'weaker' instead of stronger by playing differently at same point in timeline. Just as temp faux load increase of leveraged load can pulse support back against load when faux relieved >>i think rope pull/wedge push not totally forward but 30% effort used as TEMP ballast against side lean, can then allow the side lean to pulse back when faux rope/wedge relieved. Seems better to use all 100% added faux rope or wedge loading to target direction is best to get stronger hinge(if wood can handle thicker flex), with full time not temp ballast built in (tapered hinge) and only pulse back is for support not against efforts. . Also, i think porting more force thru tapered hinge leverage machine gives that as another multiplier of force used (wedge or rope) that you don't get if directly confront sidelean (giving more nominal effect, not going thru tapered hinge multiplier) and direct pull/push less persistent/is temporary(compared to embedding side load ballast into tapered hinge), nominal fix that skips around leveraged tapered hinge that is more persistent until tearoff. . We talk of making a tapered hinge, but actually we are just leaving what is already there keeping tree from going where we don't want it to go. This to me is about cutting less active parts, keeping and fortifying the strong until folding w/o overwhelming tree container to split, seize, barberchair etc. in art of production and safety. .
    41 replies | 1766 view(s)
  • theTreeSpyder's Avatar
    06-17-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Important note, the eye can be fooled. A single Turn and Half Hitch has only 1 radian Pi power arc of Nip and Brake forces and Round Turn has 3 such power arcs. On the graph above jumping backwards on the exponential growth rate shows single Turn left way behind; not in the running... This carries into all kinds of systems and knots. . . i think a base knot of 1 Turn just hangs on, But Round Turn(RT) different class if performed on the mount (also Crossed Turn base of Clove is Round Turn with more enforced friction) or on the Standing Part is great increase in knot forces. >>But not RT or Crossed Turn on host mount, followed by RT on Standing Part because the RT (or Crossing RT) on host consumes the 'power' needed to get strength return from RT on Standing. . The 3+ half circles this way, or upgrading Square Knot to Surgeon's (as linear 3 half circles are close to more perfect knot of long eye splice) i think is an extension of the above 3 half circle arc on bollard theory above; only 3 arcs now alternating/opposing/self balance used to apply to linear pull as some key to knot workings. . i think these things here are key to all knots and all other rope friction systems as well.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    06-16-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Finally found lost link remembered for what i think is very key vision into brakeForce mechanics on bollard type simple pipes like Porty. But would then extend to cranking capstan, why to always keep at least 2 turns on drum of winch (so no raw force possible to termination) and even inside the secret life of knots.. . Technical Paper: The Mechanics of Friction in Rope Rescue presented to International Technical Rescue Symposium 1999 by Stephen W. Attaway:GA.Tech Masters Structural Engineering + Computational Mechanics (modeling stresses, displacements) Ph.D. . i believe this fully explains what we 'feel' in working with Porty AND turns of Friction Hitch, any Round Turn + etc. >>very powerful strategies, that math/geometry offers explanation for. >>including, how simple, slick, small Porty is such a POWERFUL friction device etc...
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    06-11-2019
    . i think it is most accurate to say that the geometry/ layout schematic gives the potentials of the mechanix. . The species and condition limits the amount of stresses that can be held and still perform w/o overload. >>just as plastic or metal would give same geometry potential forces, but limit to different power bands within the potential. . Tapered hinge or thick huge may work here not there do to species/condition, but never to exceed the potential limits of the geometry.
    41 replies | 1766 view(s)
  • theTreeSpyder's Avatar
    06-11-2019
    Many tricks don't work best in all wood species/states like cheap/fast growing/thus weaker in trade/punky/weed species or otherwise compromised woods that overload before loading all of helpful force trying to get. . In Murphy's original vid, i see a faux weakness of extra cut that closes, and then a close of a Step Dutchman. Any close changes pivot point, taking leverage from load side and giving more to support side>>effect depends some on rotation position of spar >>1st close is across flex angle of fiber for now firmer flex (started with less resistance) >>2nd Dutchman close as dead push up fiber column and a more severe, uncompromising change and sudden pulse in leveraged support increase (but is to one side, so offers other open side of face as path of least resistance, and pivotal change in leverages especially early in fall. . >>LET'S MAKE MORE/THICKER! . To theory of all hinges for same load support from same pivot line force the same strength hinge resistance to folding forward . . To theory of spoofing faux support need by temporarily spoofing higher load:support ratio, to then quickly amend back to normal after more hinge strength forced >>Yin-Yang do this by spoofing load or the equal/opposite: weakness to fake extra support need to get thicker hinge . . Working on drawing of :Any close changes leverages, full face dutchman vs. step dutchman. Close across fiber for re-flexxing hinge or close down fiber column for push back of Dutchman force.
    41 replies | 1766 view(s)
  • theTreeSpyder's Avatar
    06-03-2019
    Nice slow mo'! . i think at 'first folding' movement (that can cleanly continue on own) sets potential hinge strength. >>you can let it ride it out or lessen hinge (parts) with saw, sometimes getting 'too happy' with saw. . In usual fall/not back leaner , tree moves to a more leveraged position w/inertia also; into pre-set hinge/face support to close/tearoff nearer to horizontal.. . ANY loaded close is change in raw mechanix of load/pivot/hold positions, angles and distances between the 3 points. . BUT, any purposeful close near vertical, can give artificial relief before the close, to force thicker hinge of same load with less support from front pushing back.. >>Tree moves to next position>>engages more support from front/close near vertical, lower speed of not throwing thru close/step etc. . This gives the relief at first folding, then closes, like some Dutchman etc. changes pivot, support, angle, length to tension support IMMEDIATELY like pulse back thru machinery against impending loading. >>If make normal face, and bypass the lower cut to come horizontally across fiber can get close/push from inline to fiber column. >>But if double kerf down at back of hinge , can leave space of less support at start, to try to force more fibers in hinge>>then gap closes for more bolstering back as leveraged load increases instead of increasing load leverage and not support from point of 'first folding' of hinge strength setting per load being same in same situation, no matter what is coming next. . Can draw later but to this imagery of behind the scenes/bark whereby close down strength of fiber column support pillars/stop command can be deadly at near vert.; but close across the fiber is just a type of bolstered flex we are doing at that angle across fiber anyway, just changing it some in the 'program' written into 'machinery code' before turning it on (empowering/enabling by removing some support):
    41 replies | 1766 view(s)
  • theTreeSpyder's Avatar
    05-27-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    i did work to expand this body knowledge sense, and would often say aloud or just to self, well if the rope was pulling on me like that; at that balance point,it would feel like this, kill me like that etc.... . Came time to roll huge meat logs, would look at side and see pivot on ground, like hands on highbar to 1 point in center, half the weight going forwards, half backwards so is balanced to not moving. Just psyche into breaking that still inertia and keep moving. Many times standing on side of log towards target and grabbing other side of log and pushing down with leg for bodyweight + 2x leg effort kick start... Of curse stay on side of log, and jump off at rite time and guys keep going, so not OSHA approved.. Anyway, gymnastics totally changed by approach to many things. . When trying to understand something i try with minimal variables such as parts. Also, find single switches between can and can't that make all the difference to distill out and trace into other things. Like experiment try to vary 1 element input and see what consistently varies on the output side of the pipe. Square Knot Family to study have been this for me. The simplest, frailest slips, that must be set right to function, lend views into that world. . . What Knot is kinda a slick trick, can show as secure, flip the switch, hand to target kid/wife etc., and knot walks out when they try..
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-27-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Wish I had later pix, or even just more, like I wish for tree werk. . Learned to listen to and tune force thru bod to orchestrate different effects. SUPREME CONCENTRATION in own space, almost meditational yoga movements. Internally naming conducted forces in own nomenclature to organize, call out and command these things. Later extending same to outside self. . This guy is real deal tho, never even saw this level live: <iframe width="854" height="480" src="//www.youtube.com/embed/H_QHuJyYI0g" frameborder="0" allowfullscreen></iframe> Very typical chalked hands start to keep dry to slide. Lifted up extra high for rotation seating and drop straight down sharp to seat hands and pull surely straight. Straight bod, rigid, even toes pointed to get full points, hard to concentrate on all, but in end helps leverage swing movements. The draw to cross is Butterfly as opening move statement. Iron Cross with Planche(horizontal bod hold) is sever frontal bod strength. Can see trying to shorten arm levers, not hyper extend like for swing moves. They'd ding some points off at end some for that landing step in vid! Very tough task masters! i think you can almost see he knows step cost him,but must maintain confident, prideful stature to not worsen point faults.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-26-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Many failures seen, or excessive loading wears placed by simply not grooming the geometry smooth. My hard knocks lessons make me shudder some, as relate to the excess loading strains etc. i wasn't all with the 'simple complexities' of geometry any more than most in high school i guess. . My most vivid work geometry lessons came from working out after school, working at father's hardware store and on farms in summer too. Then later to geometry forces felt learning to drive, and watched for on tractor etc. . . Iron Cross gives lots of strain at shoulder etc. but no support against right angle load as any other shituation. Iron Cross support is pure lats, as those muscles are at better angle of support to load! Should have some generous teepee in our rigs,but none in Iron Cross! Looking at some load angles, brings me rite back to Iron Cross, can even say ouch in pain.... . Iron Cross is held for the longest 3 seconds of your life to get credit; but is only a 'B' move, to get top 'C' points; had to hold in combination with legs perfectly straight in front in Lseat,for an even longer 3! (But somehow l-earned to automate Iron Cross and focus on Lseat, at some point pitting their pains against each other, rather than cumulatively against me, at least that is what told self to help psyche thru as internal coach!)
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-26-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-25-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-18-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Round Turn and 2 Halves are a base reference point; almost an Anchor Hitch + Half. >>If line was very stiff/hard to work, especially older times; Round Turn and 2 Halves was called an Anchor Hitch and used so. (Actually the said Bend to Rail and Anchor, sometimes ring, but most names changed to more normal only line extension is a Bend mostly now) . A Round Turn, is a totally different animal to me than a Turn. A Round Turn is a real workhorse, a Turn is a frictionalized slip in knot usage. . Better Half Hitch and Timber Hitch forms and usages: . The Timber Hitches list almost immediately in ABoK "CHAPTER 21: HITCHES TO SPAR AND RAIL (RIGHT-ANGLE PULL)", only preceded there by 3 Half Hitch base forms. The context begins with typical Half Hitch#1662 as worst security/nip warnings warning with Skull/Crossbones, but a base structure to build on. Then shows the most security at top nip/opposing the linear load pull position as a safer Half Hitch form#1663 awarding Anchor icon if constant pull. Then introduces Timber Hitch #1665 concept from extension of worst nip Half Hitch tail#1662 . #1666 then shows Fig.8 concept as upgrade to Half Hitch#1662 and shows the nip position pushed to half way between normal and top nip Half Hitch. Also adds a geometric consideration of:"particularly if the encompassed object is small." of even higher nip. #1668 then shows the Fig.8 Timber Hitch with nip more to side and not bottom as improvement. Next trick is in #1669 Fig.8 Hitch with Round Turn. Where the Round Turn is around the Standing Part and Fig.8 portion actually pictured as fig.8 Timber Hitch and so adds that the "Round Tum on the Standing Part adds materially to the strength of the knot.">>i try to use this principle in may things, knudeNoggin adds that if Have a Round Turn on host before Round Turn on Standing Part, you don't get the strength increase. i say that is because of drop in rope tension can't feed force to the Standing Part to produce the affect. Next chapter is "CHAPTER 22: HITCHES TO MASTS, RIGGING, AND CABLE (LENGTHWISE PULL) To withstand a lengthwise pull without slipping is about the most that can be asked of a hitch. Great care must be exercised in tying the following series of knots, and the impossible must not be expected" that starts off with a Timber Hitch preceded by 'lengthwise' Half Hitch form to convert Timber from "RIGHT-ANGLE PULL" to "LENGTHWISE PULL" usage in the back to back chapters.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-17-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-14-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Knot base structure Crossed Turn is complication to Round Turn to induce extra friction before the opposing half circles. Crossed Turn family has several related members with similar mechanix !
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-14-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    Ashley's Book of Knots lesson#1781 quotations on using 2 Half Hitches for safety. "Two half hitches will never slip"—Admiral Luce. "Two half hitches saved a Queen's Ship"—Anonymous. "Three half hitches are more than a King's Yacht wants"—Admiral Smyth.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-11-2019
    Yes 2 turns in Round Turn to be clear. . In higher duty range go to chain. Wedge tight if needed and finish with large head roofing nail as stop pin then large head seats 45 from wedge to tree . cheat on depth and give angled stop before pin pressured. . Round Turn - RT (IGKT) to me means Real Turn , >> i see common, simple Turn as a purposeful pass of force ( less friction path ) to next point. BUT an RT:Real Turn / Round Turn is totally different animal, a real workman of clamping force (unless that force already minimized) . Model less true in binding but my running standard. Difference between common deadly Half Hitch and trusty Anchor Hitch is the RT . Note that if RT web tightened to 2000 equalized thru; Splitting force inside would have to burst force past 4000 to start expand/shift chain of events. And do that all the way around if RT on self, virtually same to ceiling of wood stiffness in side by side turns . And to 2x strength profiles similar as stated. The turns also decrease elastic response of web compared to single turn at same expansion force. Just as 2:1 is 2xPower, can spread load on supports, but not as elastic at given load, so can shock system more . I define RT as at least 3 half circles/arcs >>rope only supports inline so have basic line and 180 arc back to same in opposite direction as basic rope parts I think. >>to raw theory Round Turn 2 half circles competing, and 3rd half circle as keeper, enforcer and enhancer. >>whether right angle hitchings to spar or inline series in splice I think there is a force mechanic in RT that is overlooked, and is far and above single Turn. . Stopping force , even impact handling lesson of 1.5 half circles on polished 2" steel vs. 1 Turn on 20" high friction bark as perfect example of RT Sorry for rant, RT in some system position is my fave GoTo form. >>feel another thread coming on.
    19 replies | 570 view(s)
  • theTreeSpyder's Avatar
    05-11-2019
    theTreeSpyder replied to a thread Rope in Gear Forum
    i remember many things that stick like snapshots of pivotal benchmarks and mysteries. Some haunt as undigested nagging puzzles to decades later sort that is why the butcher did this, or dear Grandma that.. or why this worked and that didn't. 2handing concept have tried to present is surely 1 long running example here. . This to me has always and all ways been wrong; or rather not so right even tho seemingly well drawn and from reputable source parroted out thru same. . This to me shows a Clove; that would most NATURALLY / undistortedly carry to the side as a Crossed Turn is 'cranked' to carry in front. >>on a larger host mount, i'd think this distortion would be even more 'toxic'. Carrying from most mount centerline of host can be better, but then would make BackHand Turn base like Turn +2 Halfs, Cow +2 etc. (not Crossed Turn family of Clove, Bag etc.) . 2Half Hitches after Turn is best because only Nip is in worst possible Nip location, so backup with another Half Hitch(HH). >>i think of this as main hitch pin and lil'hairpin of cotter key keeper . 2HH's after Clove is needed even tho expect full Nip before HH, in case jostled etc.; because Clove handling Nip no pressure in tail to keep first HH aligned as failsafe. But would think goes the long way home around to carry Clove at side, not cranked to front. . Anyway, in my whole geometric architecture of temporary structure should be trued as close as possible to perm type arch. imagery/illness; this has always stuck, undigested and my shrink said i should get it off my little chest! . Crossed Turns to me are a complication added to Round Turn (compounded Turn) << Turn(compounded line) << basic line ( descendant << parent form) >>all Naturally carry from side; anywhere else is further distortion ; strength/efficiency loss >>and torquing a loaded element to constantly load more than needed /wear out static strength and dynamic elasticity per-maturely just like metal etc. . Turn + HH to me is BackHand Turn family (Cow, Timbers, Fig.8 etc.) that do Naturally carry from host centerline and would then give HH's to suit.
    130 replies | 15073 view(s)
  • theTreeSpyder's Avatar
    05-10-2019
    Very Nice! . We generally had 2" wide ratchet cargo straps that would use with Round Turn. Then preTighten; empty the drum of the ratchet strap while other hand 'pastes' strap to tree to 'hold purchase taken'(sailor's terminology) as helper does same to other side. Then reTighten ratchet. More tightening power on empty drum; gradually lost as drum fills and webbing pulls faster/weaker from same input. Rinse/Repeat as needed, maybe trying to vibrate/knock some as you go to equalize force around and keep working it. . i always think in terms of want to only worry about complications of 1 moving /large monolith piece; not less predictable split decision or binding of moving and potentially competing, multiplying forces etc. possibly radically playing out. Not sure if that makes any of us 'control freaks'...
    19 replies | 570 view(s)
  • theTreeSpyder's Avatar
    04-15-2019
    i used to sandblast on bridges; then later on deep mine equipment with water/sand with so much power could still see spark in darker corners. Small grains can do all that as ally, but then too can tear up rope internals as foe, can do same razor thinned edge of steel tooth and face plates that cleave apart. Number of angles on each tooth to get right, to restore full functionality (then right amount of exposure /depth gauge to wood type/temp). . Amsteel is crazy azz strong Dyneema , 1/2" = 34,000 tensile and floats! (4" harbour tow ~1,800,000# tensile) Thus our thin Dyneema slings only need few strands of true Dyneema, add polyester cuz so slippery (teflonic?) and for color etc. >>we use nylon as more elastic than polyester; but much more rubber-band in polyester than Dyneema/or even more static Spectra builds. Longer molecule for more strength , less water absorption than Kevlar. Powered baby sand gran,eats it all. .
    27 replies | 1914 view(s)
  • theTreeSpyder's Avatar
    04-14-2019
    i see what you mean; but meant as these surfaces hone to edge, that cuts yes as surface sides can also serve to cleave apart wider; >>all in all a destructive cutting/grinding machine when given power. . i believe i am quoting some far off memory about sand 18 sides/edges average. >>but in any case;i think gives proper working imagery model to go by. . Have same imagery (by any name please); for grains of sand working into rope internals, then silently hidden and protected, are powered by loaded usage to work back and forth; and tension contraction of loading and unloading itself i think, to include cranking around arcs in lowering as we do; to saw rope fibers degrading strength over time. Flat Rope/webbing less strength loss on arc static on branch less deformation, but would get eaten up on lowering, and has 1 favorable bend axis to not deform too much, all round rope axis are same efficiency loss leveraged/bent at any angle . . This is why mountain/rescue disciplines go nuts if step on a line(let alone run car over), can press sand grain(s) thru jacket to theoretically give problems much later/unassociated to cause due to wide timeline >>treat rope/gear as 'sacred'. >>downgrade ropes in timely fashion from primary lifeline also overhead lifting and lowering positions. (to rule out this cumulative damage, and other low level/slow damage of UV, air etc.) . By extension would expect a clean carpet to last longer (and be lighter).
    27 replies | 1914 view(s)
  • theTreeSpyder's Avatar
    04-11-2019
    Sometimes cut to Dutch in direction of proposed pull is needed to get snap easiest. Can even cut face up and backcut down and throw rock in upward face. As long as solid stop inner and 'nose' of face still allowed to turn passed that point. . Like the slant cut for more linear compression of wanting to push itself apart. Twisted, torqued can be hard to calc where to plot reliefs and can get more conflicting forces, especially if cracked etc. so is not a monolith of 1 unjamming piece but rather different sections that can jam each other. . Drop across spars gives more determinable compressions and tensions, and spaces from ground/sand. . Consider peeling what bark can if in dirt on dirt side, even blow dry out dirt, then might try rinse to keep sand out of works. 1 grain of sand uncrushable silicate averages 18 cutting surfaces per grain and chain saw can use as sandblaster to turn chain knives into trying to cut with back of spoon profile!
    27 replies | 1914 view(s)
  • theTreeSpyder's Avatar
    04-06-2019
    i've been around some of this, just captured here for reference if anyone needed tho; as not easiest to find info; part of heritage of tree work etc.. . Mostly for me, bears out parallel work to view as different facets of same principle gems, verify theories etc. of rope/flexible support materials handling. . To me finding the lemonaid ; the yin/yang to flip to the strength of weakness; is this 'weakness' gives the ability to tell the difference; where others are not affected at all/ or not so noticeably by the forces etc. Similariliy>>if i can show the big guys how i have to do something, they save a lot of effort might not have been able to sift to on their own, at least not so immediately, especially if not looking for it etc. , or even them trusting their can be a lighter finesse way rather than bulldogging thru all , all day. Sometimes i even purpose-fully position self weaker to the shituation than necessary,just to find these paths... Wire rope, is so much stiffer than rope, so must adhere to all the pure inline strategies even more so; and illustrates this to us at every turn, literally. Wire Rope is (mostly) stronger than ropes, but 'expresses' more of this Achilles heel weakness to deformation/taking support column out of line even this minute bit. Then this benchmark model guides many thoughts; to constant grooming knots during manufacture to this pure inline profiling. Then, as collective inefficiencies and weaknesses stack to multiply against efforts and safety, they are simply forged to be less at each stage, to extrude less loss at the end of the loss multiplier chain(s). . . For me, The saddle is the wider set side of the clamp. You ONLY saddle the LIVE end/side because the Ubolt side of clamp would not be as 'soft' would deform cable more. >> So give softer deformation to loaded / LIVE side of cable for most strength, deforming only 'DEAD' side with the 'sharper' Ubolt side of clamp. note even mixed to try to give best of both worlds to either side is errant, fails earlier in the 'staggered' /alternating clamp arrainge-meant than the proper ,only saddle LIVE side of cable/side carrying loading. Then keep watching same loaded aspect view in rope workings. . Rope, to me has same characteristics as cable, only rope isn't as sensitive of a read-able barometer to these changes as the stiffer cable of the flexible support family(tension only support of rope, cable, chain,web etc. / non-rigid supports). So,the more exaggerated reaction of the wire rope re-affirms this principle as the wire rope brings it so much more closely into view by it's magnification/ exaggeration of what happens in rope etc. . This is 1 place where i directly get outcry of 'pure inline' to measure the lay of the systems as a 'roman column' of support for rope/knots/rigs.
    15 replies | 843 view(s)
  • theTreeSpyder's Avatar
    04-05-2019
    worksafebc.com/en/resources/health-safety/books-guides/a-manual-on-splicing?lang=en This manual contains simple how-to instructions for splicing on cable yarding systems. It also features information on creating the various splicing connections you need, along with special connections, such as Molly Hogans. Other subjects covered include special knots, general purpose knots, and threading procedures. This manual should be used as a training tool for the new worker and a reference guideline for the experienced splicer. . worksafebc.com/en/resources/health-safety/books-guides/cable-yarding-systems-handbook A comprehensive reference handbook for cable log-harvesting systems used in B.C. The safe work procedures detailed in this handbook are applicable to both coastal and interior logging operations.
    15 replies | 843 view(s)
  • theTreeSpyder's Avatar
    03-30-2019
    i've sunk outriggers on pads about 3' evenly(still scary) w/crane close to work; thus say:crane only as good as the ground it stands on. . Seems piece too big for a static, vertical pull(but hard to tell). Let alone leveraged angle, increasing in to impact. I look at angle of boom to work, rather than distance. Would seem crane reaching over building, would seem low angle. Should never impact crane, straight up , clean only. . i'd hope any crane operator would only pick straight up on static target, CoG below choker. >>anything else gives multipliers of weight against crane. >>no telling size of crane/capacity; if experienced operator etc. . To me, on this, it would seem fairer if Darwin came and got crane operator as the injured party thinned from gene pool. .
    37 replies | 1626 view(s)
More Activity

1 Visitor Messages

  1. Kenny,
    How's it going?

    I AM coming south to hlton Head SC with a stump grinder or two and a skid steer loader.
    Are you interestd in doing some operating or sales work in FLorida. I'd like to skip back and forth between SC and FL with the stump grinders. Don't rememer where in FL you are. If that doesn;t work for you maybe you know sonewone looking for work.
    Let me know.
    Thanks,
    Daniel
    804-283-3214
Showing Visitor Messages 1 to 1 of 1
About theTreeSpyder

Basic Information

Signature


"Nature, to be commanded, must be obeyed" -Sir Francis Bacon
We now return you to the safety of normal thinking peoples.
~ Please excuse the interruption; thanx -the mgmt. ~

Statistics


Total Posts
Total Posts
341
Posts Per Day
0.27
Visitor Messages
Total Messages
1
Most Recent Message
10-16-2016
General Information
Last Activity
5 Hours Ago
Join Date
02-12-2016
Referrals
0