• theTreeSpyder's Avatar
    3 Hours Ago
    i think the 4 basic differances Nylon vs. Polyester, each point to Polyester in this usage: 1>as Nick says Polyester has better UV resistance. 2>Also ; As nylon slurps up 1/2 it's weight in water ratings drop. . 3>And Polyester better abrasion resistance >> of particular concern in this usage of constant high frictions on 1 area 4>Polyester less dynamic stretch >> of particular concern in this usage; >>cord too short to give dynamics to system anyway, would get that from host line or anchor etc. >>but can be harder to work hitch loose to move if stretched closed around host . Would favor a range of 50-75% host diameter for cord. >>larger than 75% host diam. doesn't grab rite, less can seize too easily to make less workable fer us. . Single leg of host support delivering to 2 legs of cord support about 1/2 host diameter >> is fair rough math for even weakness of chain. . These are tight bights by cord around host; the stiffer the cord the less 'strength' as turns tight bight and compressed fibers in cord on tight turn wouldn't carry load/so cord weaker, the way i see it. Stiffer cord, more resistance to tight bight, the more compressed fibers, when only tensioned fibers can be used. . Spliced perm.eyes rule, Double Noose i favor for temp.eye; favour crossing outer Turn of Dbl.Noose over inner to solidify and make more stable.similar reasons for same in Dbl.Fisherman's: Dbl. is stronger, favour crossing Working End over 1st Turn of Round Turn for Dbl.Fisherman's i favour eye to eye builds rather than sling shown (personal preference, sling still 2 legs of support) >>seize down Bitt.end w/tape for extra security Round Turn of Dbl.Noose gives back some 'strength'; >> that is lost from the bend of the 1st Turn bending Standing Part, deforming form 'pure inline' >>as the 2nd Turn(RT) then hugs the deformity and 'manages' it better, giving it less 'impact of change'(?) i visualize difference between TV power cord bend going into system >> or upgraded to grommet, managing/softening/allowing less impact of change from bend of cord into system (but then i also visualize rope carrying tension as a kin to water pressure in a hose or electrical 'pressure' in a wire..) . Animals can chew ropes left overnite etc. Polyester/Nylon pretty chemical stable, but notably feline uric acid very bad! >>Constantly treat Life equipment as dear friend that saves life; almost Holy >> every day, in every way, so permeates very Naturally thru everything you do.. Put lifeline in with throwline, pull throwline back into place with lifeline at nite, leave that in over nite. >> when ready put lifeline back into place with throwline already there. . i think we'd favour facing krab gate away from hard surface
    7 replies | 99 view(s)
  • theTreeSpyder's Avatar
    6 Days Ago
    Knot names vary, several references for Jacked Bowline. Double Bowline upgrades the "Nipping Loop"(IGKT) in Bowline construction from a single Turn base to Round Turn (RT on IGKT forum). If make same RT into CLOVE is 'Water Bowline', because is a sometimes a very needed upgrade in water, grips more tenaciously even in that context. Take Bitter /Working tail of normal or Double Bowline and 'reeve' it back up along the Standing Part (S_Part on IGKT forum) is a "Yosemite Tie Off" for more security and to 'clean up the eye' as now more resembles an open/clear eye splice to attach to etc. DBY is Double Bowline with Yosemite tie off, much more symmetrical look and feel, open eye, more secure; discussing how much stronger. . i favored the slip-knot inversion method of making Bowline(can't believe slideshow is 20yrs old!) >>Instead of the rabbit going up thru the hole, around the tree, the mountain comes to Mohamad! In olde times if stranded on a side of a cliff, holding on w/1 hand, they could lower a line with the slip knot in 5' or so up. With one hand person would try to get Working End around themselves under armpits (or seat if real good hanging on), back up thru the Slip Knot and fold back down outside it. If holds on right , even if falls at this point should invert slip-knot and make FIXED eye around self not shrinking eye on lungs etc. >>Lesson can pre-make half of Bowline for quicker tying 2nd half if needed, can even hang slip knot eye on hook, even own thumb; >>visualizing almost needing to capture some strong bull soon as contact, release confidently to rope .. . Olds-cool numbers >>(modern HPME stronger than steel ropes have special needs and rope bend references now all show higher in general ): Not too stiff like Stable Braid etc. / more like ArbroPlex/True Blue class, Would assume 50% strength loss on knots etc. This takes into consideration like Marl, HH (50% 'strength') and notably a 1/2" rope (x4 diameters)on a 2"pulley as 50% 'strength' >>approximate 4" pulley(x8 diameters) for 1/2" line about ~100% 'strength. So, HH/Marl matched to 2" arc in 1/2" line as matched components, chain only as strong as weakest link anyway. >>bigger branch than 2" more radius/ strength retention, but more frictions deforming line too/strength drop.. Knot 'strengths' over 50% are more 'premium'; and rightly all that we look at using generally in our world. >>Overhand knot on primary loaded Standing Part at full load a no-no cuz is around 40-45% 'strength' knot deformity >>Sheet Bend around 50% line, so ok in their working class >>Bowline i think re-routes some of the load on Working End of primary bend from S_Part >>so anyway, test out higher than Sheet Bend of similar architecture going into primary loaded deformation, but not out of.. (as i try to visualize what is going on inside knot microcosm) . Still trying to werk animations. Biggest strength increases in hitches i think:minimal deformity to most fully loaded S_Part, after that , if working end is to deform S_Part: RT around S_part w/minimal previous frictions (or grip mechanic doesn't werk) to more than just bend fully loaded S_Part but then hug it to manage deformity better/ give some strength back. When visualizing rope as power vessel like wire with force running thru it i look at RT on S_Part as upgrade like grommet rather than sharp bend going into tv/knot machinery as just deformity managed better/ more strength retention. Beyond that , offloading some force at or before any deformity, maintaining S_Part pure inline as much as possible , and can make float away from / not have to collapse to host mount, like an eye slice can or a friction hitch in right circumstance. NOT collapsing to host showing Definitively as separate leg of support to load, so less tension on part of primary loaded deformity, for less, strength loss. The 'secondary leg' on these also will pull more inline than across the fully loaded S_Part. >>i think that and some rope angle ranges are mostly all there is to it! >>ABOK does note RT on host is stronger on small hosts as evens out wear, but if do this don't get benefits of RT on S_Part that i think is better. . A single, simple Turn around a polished 24" capstan/pipe i'd guess can't hold 500# by self confindentally. But guess RT on 2" might only take around 50# hold, another turn on 2" host just a few pounds to hold 500#. >>even though, more surface area contact on the 24" i think, so look at this pinch , grip thru host, even if line as TOTALLY different mechanic than a simple, single Turn.
    97 replies | 3712 view(s)
  • theTreeSpyder's Avatar
    2 Weeks Ago
    To me the Half(HH) Hitch/Marl strategies provide a 2nd grip yes; But most importantly, are for inline pulls along spar like our loads commonly hang. To place the entrance/Standing Part of HH/Marl pure inline to exit/ Bitter end of same HH/Marl; correcting the inline pull on spar(that should be across minimal axis/at right angle to spar) . Specifically to this part of 'my' theory: A> is correct angle of pull across minimal axis of host/spar B> is in-correct angle of pull along major axis of host/spar(MUCH better Bowline eye is over branch/taper swell) C>modifies the incorrect angle of pull on rope of B to pure inline for primary hit. . . i look at HH/Marl as precedent/primary of Running DBY (that is backing up primary HH/Marl) . Bowline deformity of Standing Part from pure inline is more radius of change, but softer bend than HH/Marl? Bowline also splits loading to eye/dual leg HH is single leg support from Standing Part to Bitter End >>HH/Marl i figure 50% relative tensile Lessons consistent with rest of pure inline theory >>harsher bend from pure inline seems to give more impact of change against HH/Marl even if not as far arc-ed! . HH/Marl will make weaker, but more secure, not just because of 2nd grab, but i think proper angle of pull also >>if would or metal architecture would look at as same! Why expect more from rope? . Many things work on double grab/bite fastenings; also duals as failsafe. >>nothing is 100% efficient, so simple dead stop not 100%, almost gets it, 2nd stop dead ass ends motion. . Ashley's book of knots, virtually all pulling knots are at right angle to spar, across minimal axis. Then totally separately have knots for along the long axis pulls in 1 small chapter, all with HH/Marl/VT type primaries for this alignment i believe. >>these forms include our friction hitch types, as themselves inline pulls on a host rope rather than spar >>i think we will find HH,Marl,VT/rat tails type precedents/primaries (or total package like VT) >>i don't think we will find friction hitch inline pulls on rope column to have any 1 stop part, nor wrong angle of pull in primary! Round Sling grab along spar column found here, but ANY type of noose, Running Bowline etc. (as primary/only) 'conspicuously absent' >>So trust Round Sling dual grab if no HH/Marl precedent, but actually used HH/Marl before round sling a lot going over ~2-300# >>especially if can't give that more inline resistance with branch/swell as stop on deepest side of eye from Standing Part. as closer to inline architecture of stop vs. Standing Part pull . i believe in watching numbers, don't really speed, nor race when have to change tire, but NASCAR has brought us far! >>reaching, rating etc. does expand, groom, care for systems But just watching all strength seems overly 'macho'/un-even/1 sided at some point; even blinding; when other considerations! . If you drag a lot of stuff, will find with just Bowline, Clove, Cow etc. all trustworthy right angle of pull strategies ; Tied to drag branch etc., load can flip around wildly side to side(in rite conditions) like dragging a wild cat trying to get it's collar off ; >>until tamed by slipping a HH (or Marl) over 'nose' end of spar ; and pulls straight and true w/o all the melodrama!! >>at correct angle of pull, pure inline! (i guess will fall into place w/theory nicely, as theory was, once again, actually formed around it!!) . OLD LINK :next screentest youtTubie target is to bring in more animations, going slow for water molecules, will try rope over weekend. Hope voice isn't too tinny, i think this is going to be big year of growth for voice tech in/out artificial voice has no background noises and is always consistent even if not on same day etc. . Polly Price Page Link - AWS 1st yr.free, after that 1million characters $4 (think that is in 1 month, max 1000 requests of max 1000 chars) AWS Amazon Web Services is gonna kick butt, google/ms/apple etc. scrambling for a piece.
    97 replies | 3712 view(s)
  • theTreeSpyder's Avatar
    2 Weeks Ago
    . That was one of my first thoughts.. . Previously, i honestly tried to track down some of the numbers i've watched over years and couldn't find any; many broken links in my stash etc. . i do know that i really pushed for DBY over years; and fought this narrower difference stated between the 2 for years; to some pretty smart peoples on IGKT etc. . Consistently, the wisest always said many of the ratings are parroted, some made up, most tests not scientific enough to stand scrutiny etc. etc. For years i chased and compared all i could find. Also, there is so much if dressed and set properly, different materials/braids/stiffnesses that affect these knots in families when looking at tables of them that it is hard to make generalizations. Sometimes same tester finds this group of knots stronger in his dynamic lines but other group stronger in static lines etc. Then fishing lines totally different, then dyneema etc. (just to show range, but lessons at each layer too) . Over time; fighting for DBY, holding it in my hand, looking at the architecture and how all rest of my theories and understandings lead towards: Eye is dual legs of pull equal to single leg of Standing Part as most loaded single leg. Weakness from deflection from pure inline, at most loaded part >> just outside knot/ where they break! . That isn't much different at that point in either single or double Bowline; They both start loaded same and deform from pure inline same. Main difference at that point of the architecture is on single immediately deforms again, double rides out more before makes same change. . All the rest of my model theories actually more in line with what they were telling me about Double Bowline! So i had to fall back! i'm still all for DBY anyway, but that is where i've chased this to; and that was the range that stuck in my mind. . <iframe width="560" height="315" src="https://www.youtube.com/embed/RzHvyVHIiXM" frameborder="0" allowfullscreen></iframe>
    97 replies | 3712 view(s)
  • theTreeSpyder's Avatar
    2 Weeks Ago
    Thought,would move this along faster today(seem to suffer from that a lot), even past screentest_1; but throwing in towel for now, both brain cells spun out and smashed around some steep learning curve! Always shyed away from voice over; >>few glitches not combed out, audio alignment not always surviving vid compression not sure if at youTube layer or right before. >>but youTube forced vid compression harder on vector graphics, lots cleaner before! . . <iframe width="560" height="315" src="https://www.youtube.com/embed/HZL5XKfxyQs" frameborder="0" allowfullscreen></iframe>
    5 replies | 219 view(s)
  • theTreeSpyder's Avatar
    2 Weeks Ago
    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 mechanix, xylem root feed for water considerations youTube quite a high traffic searchable index . All life has biological and mechanical considerations to stand ordered against the onslaught of raw Natural forces! Trees do everything on a large scale, including large bio-mechanical needs and considerations! . <iframe width="560" height="315" src="https://www.youtube.com/embed/gZI5HQUwuno" frameborder="0" allowfullscreen></iframe> . Full Circle: When 'Future Splash' first made Flash(before Macromedia then Adobe bought it out) it was for movie timeline like this, not the command interfaces and pages. Became most public with 'frog in a blender'; went to lead internet introducing 'rich content' ; now shunned by Apple, Android, Chrome etc. ; back to movie/ timeline builder!
    5 replies | 219 view(s)
  • theTreeSpyder's Avatar
    2 Weeks Ago
    i'm sorry i've been watching this specific issue intensely for 20yrs. trying to de-code rope mechanix in general; and that is what the guys i think are most knowledge-able seem to say after a lot of chasing it with all i got ; as DBY was my own choice in materials we use. . Perhaps i was slack and don't take things far enough, but that is where my journey ended(fer now)! . i'd replace to DBY as you say as always doing simple best, is more secure >>just have found tweak to retaining more tensile strength not as high a return as would hope! **************************************************** Rest of this is filled start to finish with PERSONAL THEORIES/ NO BACKERS : Pushing usable tensile strength very far over 70-80% on lacing that just deforms, not grips Standing Part is pretty tough i think. . Please note that the longer ride over same deformity for Double vs Single Bowline is not real angle across railroad track imagery >>but rather more like going over 2 sets of RR tracks >>so major 'savings' would be due to the up/down being farther apart as less impacting change-back, >>NOT more gradual climb over initial deformity like hitting RR angled for less impact of change initially.. . Better architectures w/o deforming fully loaded Standing Part so harshly: Round Turn around Standing Part (straight Standing Part w/only Turn on host) based >>seems to manage deformity, hug all around just not deform Standing Part, test out better . OR friction hitch back to self away from host (sharp angle less loading) >>like splice so more like 2nd leg of support to deformity around host, 2nd leg pulls with /not across Standing Part.... >>the fact doesn't deform Standing Part, >>and securing grab floats away from host, not pinches in to host, shows is as independent support leg . Bowline is good in most of our materials (not so friendly in super stiffs or fishline etc.) >>BUT Bowline is a VERY harsh deformity in Standing Part; >>fig.8 based lacings give a softer deformity in that they take that longer route to deform for less impact of change/test out better . Bowline said to be king of knots >>in a world of harsher Standing Part bends commonly leaving 50% tensile strength usable in shituation; >>Bowline is stronger and more secure than general class knots ; but we deal in upper class knots.. . i consider a Bowline (Double or Single) as only properly pulling across perpendicular to host; Most loads will hang as inline, not perpendicular line pull; so wrong angle of pull by Bowline mechanic >>Pull of Standing Part NOT pure inline with equal/opposite force of stop in loop opposite Standing Part so would always and all ways precede w/Half-Hitch(HH) or Marl to modify(making this the most loaded, primary deforming fail point) >>BUT note now how on INLINE hang, HH/Marl Standing Part pull is now inline with the stop of that section of mechanic >>the Working End of HH/Marl exiting is PURE INLINE w/Standing Part of HH as Working End of HH leads to Bowline. . Bowline i believe in Bitter End tail INSIDE; >>find OUTSIDE to not being in the force path of the most immediate Nip >>leaves Bitter End more free-agent or only getting secondary forces for resulting Nip to secure.
    97 replies | 3712 view(s)
  • theTreeSpyder's Avatar
    3 Weeks Ago
    A Double Bowline shows testing out 5-8% stronger, and much more secure in tests. . The theory is that the same primary deformation of the most loaded Standing Part is in either form (single/double Bowline); just Double Bowline gives a longer route over that deformity of 2 rings rather than 1; for less impact of change by the most loaded Standing Part. . Kinda like hitting railroad tracks square perpendicular(always have wheels straight per vehicle), or angled across for longer path over same deformity, less impact of change. . Some say results and change too insignificant, and then just 'parroted' around; some say Doubled Bowline might be just dressed better by maker taking it that far etc. . Muscle memory in my fingers knows the DBY slipknot/inversion dance better than rest, so that is what comes out! i think any of these things that you pay real attention to, preen, dress etc. squeak a few percent more out of by making line lay more relaxed/less torqued and proper alignment, for 'cleaner running', less 'burrs'/faults etc.
    97 replies | 3712 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    If'n you apply it all; but fair enough! . Working on slideshow with safety stats: Powerhead of Modern chainsaw: motor /muffler:~900 degrees fahrenheit @~14,000rpm chain: ~68mph ,100ft/sec, 1 tooth every 2" = 600 cutters/sec. . Dug this link up, i always have this OSHA pic of hits in head; LEFT takes most hits in right handed world; Both hands on saw would probably eliminate LEFT hand hits, most of upper body hits, esp. LEFT side and general better control 40,000 chainsaw incidents /yr. in this OSHA report, 20% kickback, imagine most of those upward: . chainsaw most dangerous power tool by far, the most dangerous non-power home tool : LADDER most dangerous power tool (chainsaw) X most dangerous non-power tool(ladder) = EXPONENTIAL HAZARD MULTIPLICATION (another fair point from project for mix/ preachin')
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    Easiest way not to cut hand w/handsaw: hold with both hands..
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    OSHA: With everything else we call out, still getting hit by tree fall is highest mortality>>
    19 replies | 1339 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    Close Shave: This climber was lucky as F' someone was there that could also get to him, and a doctor happened to be there also! Many climber has found injured in a tree a rather lonely, desolate place to be! (not sure 1 handing, but certainly on point!) . . http://pittsburgh.cbslocal.com/2014/04/01/x-ray-released-of-tree-trimmer-with-chainsaw-embedded-into-his-neck/
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    Found this ol'logging pic to add to collection: .
    47 replies | 2272 view(s)
  • theTreeSpyder's Avatar
    4 Weeks Ago
    Nuttin'grey about that to me, go fer it! . Looking to put controllable light bulbs around, color on porch >>waiting for it to get cheaper, will not get bluetooth control, but rather android/wifi when read device can hit with Alexa control(more and more /most) >>Bluetooth for speakers, Bluetooth mesh or master/slave for more than 1 speaker(Bluetooth originally made to be paired 1 to 1 , not 2 speakers) . Had to replace bad outlet, moved kitchen outlet to that hole and got usb built into outlet in new kitchen outlet >>only get where each usb port is 2.1+amps not 2 w/2amps total or 4amps to 4 usb >>1 amp usb charger is weak, old school, and doesn't power everything . All our new power strip or multiple outlet overlay WILL have usb ports like this; will just come in handy! . Just playing into future $30 here and there where it can count. Have always kidded my old man about refusing to learn computer anything, quit job 1 time over it. Tell him i feel like i'm trying to show him this new fangled wheel invention and he'd rather drag stuff uphill cuz works so well! . Alexa is conversive, accurate, responsive and soft enough i can see a class of 30 kids w/headphones getting pretty much individual attention teaching simple math at first. Alexa asking questions, rating answers, finding weakness patterns individually and sight out bottom 15% and top 3% for proper extra attentions. Amazon has $100 mill set aside for donations to development in voice technology, Google, MS etc. are trying to catch up to what was an odd experiment w/Echo that boiled over to raging success. i think all this is going to saturate thru everything; like the rest of the 60's Star Trek cd's, flat screens, big flat screen tv, communicators, badges, tablet pc, palm scan, retinal eye scan, talking ship etc.! . God only knows where the gov. is with technology. They keep us so in the dark they say when JFK was in office(before black and white Star Trek); >>they could read the name off the golf ball JFK was going to hit while watching him from above the clouds!
    4 replies | 112 view(s)
  • theTreeSpyder's Avatar
    12-17-2016
    i remember when ~20% of prime time was Westerns:Gunsmoke, Rawhide, Bonanza, Wild, Wild West etc.(Star Trek described as a western in space!) and not too many channels after that! Black and White unless watching BaseBall, then Dad would put 3 toned clear plastic over it (light blue at top, clear, green at bottom) Kinda did look like washed out color tv of the day with blue sky and green field! . Eventually Grandma gave us hers, real color, well for then it was. But it also had a remote, so my 6yr. old work load immediately decreased. >>The remote had like chalk sized bars made of metal of different length so hitting spring button on 1 would change channel, and maybe dropping silverware would too! . i remember my Chicago cop Dad yelling it might be 1965 outside but it is 1935 in here; and mostly being right except for that color TV! (including Mom not being allowed to even learn to drive until she was 35, because i was in Driver's Ed the next year!)
    13 replies | 265 view(s)
  • theTreeSpyder's Avatar
    12-17-2016
    Well used thing i got this year was $100 Amazon Prime 1yr.; 2 day shipping, gave it to her for her birthday, under her name , so all purchases start there (hint, hint). . Amazon TV/Movie library on this toy:s905 Android TV box (many out there) (note: very stable, especially if has own powered usb bus on device, i always throw away remote and get cheap wireless mouse) >>Also has Ethernet port so now hard wired speed! >>been very happy with that + NetFlix, she uses 2 day shipping a lot.. . Got a Dot when on Black Friday, Amazon famous for not giving breaks $180 Echo broke this ground with, now rest trying to catch up. And now just got 2nd $40 Amazon Dot (backordered online but was at local BestBuy) cuz cheap part of Dot is speaker. >>+$27 highly rated Oontz Wedge bluetooth speaker rocks pretty strong, and i can see future of voice command 1on1 individualized Math class, fail point tracking to correct pattern etc. from here!! >>some music free w/Amazon Prime then can load 250 thru amazon of own. . i figure, it is Christmas and She's worth it! >>actually alerted to other female command voice in house!(Alexa on Dot.) . Got some fair cheap Alexa control (Black Friday) bulbs for voice control back porch, but that is still a pretty expensive game! >>Mounting Dot_2 on wall over door facing everyone(rather than ceiling), seems to hear much better . Just some real good toys, fairly cheap here and there, everyone here seems geeky enough to have computer and phone; so can get for wife and help her!
    4 replies | 112 view(s)
  • theTreeSpyder's Avatar
    12-15-2016
    You can take the faceplate off of most home fuse boxes. Only an idiot reaches to the un-fused /municipality side unless has to and then only very carefully(this is perhaps good time for 1 handing). Like holding breath longer time, alarm should be going off in head, time ticking loudly while cheating i think. . Idiots in these environments tend to offer to be a dying breed to keep the herd pure; per Darwin.
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    12-15-2016
    i think you should drill not to 1 hand, just like book says. Should drill for years, so that when eventually have to do it alarm is going off in head like have a life support hose unhooked from space suit! . Anything else kinda makes it a matter of course, not exception.
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    12-10-2016
    Kidding aside; 1 handing has remained for me kinda like if you have to ask you aren't old enough to (just) know... . It's definitely not where you start out crawling then walking thru all this; that you should never run to or thru. 1handing shituations mature after YEARS in the saddle full-time to stepping carefully one foot over the line unto thin ice trying to sneak by cleanly w/o getting wet/drowning. . BUT; we dearly do need people screaming not to do it! Generally confident people start tree climbing/trimming; some show boats. . 1 handing is not anything to play with; it is for seasoned users only that know all the other ways to attack before chancing this extreme. .
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    12-09-2016
    . A scaffold/double noose or single, maid backwards or pulled backwards on same form is a slip knot! >>Placing Round Turn around working end rather than standing part makes slip/not noose. Not sure that is the problem here, but that is how easy it is to have a problem! (note in 1 move from about best shrinking eye termination to worst, where shrinks to Zer0!) . Positive mechanical stop at end of line rules. >>fig.8 looks more pro, has more weight , BUT same profile on stop dimension as simple overhand(fig.8 length increase doesn't increase profile where stop is needed), and simple overhand more squarely fits hole to stop, fig.8 deforms as 1 side hits stop, rest of architecture then crunches up until other side of fig.8 clogs hole More gradual deformation of fig.8 (vs. Overhand) is very good base knot architecture, but conversely; not as stopper! Dan Lehman is a top knot guru for IGKT, used to visit arbo boreds as knudeNoggin(knude is Danish for knot); he has tuned up my knot knowledge ruff spots more than any other anywhere! i also remeber a chat with 1 Nick from wisconsin, ohio or michigan or california (can't remember) throwing one factoid out that immediately re-aligned me square on a basic point still carried about eye made stapling or pinning thru line 2x being very strong! A benchmark model i still carry to measure other things against! . Line is doubled overhead, but single underneath you. Should always be able to pick up end of rope and touch chest and bight be on ground(so is now doubled over and under you), or might run out of line(some built in safety margin for rope stretch under load when descend; and your standing height on ground). . i favored tracing line thru hand around seat, maybe even around leg, for extra friction and feel have more line as also watching. Longer , faster descents might also have traced thru feets just rite so can pinch there for more friction etc. Spreading out frictions is less heat build up at friction points and able to 'exhaust' easier before next friction point. Feet together with line running thru makes first mechanical stop/braking as catcher for stopper knot. . Making knots, rigging, should not be thought of as simply tying shoes etc. Always think like manufacturing a machine; proper alignment and form count to carry a load best, with mechanical safetys. Just because rope is so deceptively light and flexible seems different than wood and iron, but still are carefully, purposefully making machines with precisely aligned parts to task. Anything less than premium architecture is, well, LESS!
    76 replies | 3836 view(s)
  • theTreeSpyder's Avatar
    12-01-2016
    theTreeSpyder replied to a thread vibe in Gear Forum
    Another use for sling and caribeener sets ready to go on belt was to throw as a penalty flag down to ground. We didn't have wireless, and couldn't shout over the chipper(s) very well.
    28 replies | 620 view(s)
  • theTreeSpyder's Avatar
    11-27-2016
    Perhaps Mark enjoys the safety of Plato's cave; blinding light can hurt the eyes after so long!
    322 replies | 9641 view(s)
  • theTreeSpyder's Avatar
    11-17-2016
    With throwline, rope, LUCK, maybe truck might could get lucky w/o climb, wouldn't think make any more expensive to remove if didn't work; unless got real stupid w/truck. . Hard to tell if open area to slide to right into; or flip to vertical/slide down. Also might be decayed/crunchy branch to aid in it's own removal under pressure. . Can make temp throwbag w/dirt in red mechanix rag; hard weights bounce away from target and hurt head. there is even crotch over target/direction, but probably not a good bet here. . Just an alternative thought!
    32 replies | 977 view(s)
  • theTreeSpyder's Avatar
    11-12-2016
    Brydan, never went to school etc. on it. But, hope this works for the matching calculator link with centered(i guess you say symmetrical) load etc. as pictured in Flash widget?: mytreelessons.com/forcesPulley_verbose.swf (that was to be included but got cut in an early morning edit i guess,sorry, so appended w/pic edit) Certainly though load to one side, line on slant, motion dynamics, friction complicates matters beyond base model presented. (Will play with load not at center calc page, thanx!) *** Limbrat The angle would be more favorable gradually, yes is fair. (i'm looking at starting from slack, pulling forward) . The other part of that is the line tension, that here would trump?(damn said the T word) If low redirect pulley at truck hitch height; none of the line tension is lifting up on truck, so not decreasing traction to pull. vs. Any upward angle X increased line tension; tends to lift up on rear of truck with part of line tension, decreasing traction etc. is what i was trying to point out. . In this specific usage here; probably more of personal best practices/for most positive, predictable actions; and to illustrate principle L-earned to put weight in back of truck, make sure solid, dry road, plenty of gas and take in consideration of this type of upward angle pull, like when pulling tree forward on hinge from high tie off etc. . Guess i could change that to as line tension increases(done), was looking at starting from slack, and the more you pull forward; the more upward tension angle (less angle but more tension), the less traction, as witnessed many times! Thanx!
    49 replies | 5893 view(s)
  • theTreeSpyder's Avatar
    11-11-2016
    theTreeSpyder replied to a thread Rope in Gear Forum
    Thanx, . As i'm going thru everything i find 2 legal downloads on rope/knotting that i hoarded in my madness, and have become somewhat obscure. . mytreelessons.com/rl/book/LifeOnALine-Volume_1.pdf is an excellent free resource of working class and rescue knots. The generous, very well respected author has since removed the free version and added an updated, paid version; even the cover is artwork: "Underground rescue from caves and mines is the most extreme form of technical rescue in the world" . The other is ye old US Army rigging manual; full of basic raw survival, making rope work mindset: mytreelessons.com/rl/book/Army%20Rigging%20Field%20Manual.pdf . i've learned a lot from going over and over both of these free resources!
    76 replies | 5056 view(s)
  • theTreeSpyder's Avatar
    11-09-2016
    Welcome! My model on horizontal ridge line support is a similair 2:1 lift pulley system! (unorthodox no schooling for this either) Both legs of rope support for 2:1 are inline w/gravity flow; 0 degrees deflection from pure inline each leg of support. . 1000#/ 2 supports = 500# upward needed on each leg 0degrees deflection, all of rope inline/usable for support . vs. . Pull both rope ends apart, pulley in center, still 2 legs of support/sharing load just each support leg is deflected from pure inline. . So, rope tension raises, as not all of rope tension usable for the inline support needed another way to view is volume of force in rope vessel still needs to support load, but also contains pull across forces on spread supports. Either way, rope tension to support same 1000# is now more than 2 legs of 500# each. . Half the spread angle of ropes is the deflection from inline for each leg of support(see calculator link) half the load cosine of deflection = amount of line tension needed to support load or half the load X secant of deflection(1/cosine of deflection) . calculated line tension x sine of deflection = pull across forces (not downward load force, spreading force). calculated line tension x cosine of deflection = pull downward forces(1/2 of load; really just reversed formulae how got in 1st place); . . . On speed lines i always tried to bluff/ get low anchor farther back than target delivery area; so didn't have to pull tightly to delivery area, but rather slop down/slack to deliver under less line tension. If can have low, backfield anchor bluff 10' off ground even easier to slack down to real delivery area after dodging obstacle! (like deliver to curb, but anchor across road 10' up, slacken line so delivers to original curb) similarly can bluff high anchor higher, back; then run whole ride under less tension, by making it over qualified! . This, then birthed from that/above, so same math on angles etc., >> try to bluff wider than need so can slop under less tension, rather than maintain higher line tension to deliver to target: . . edit: Calculator i made for showing force patterns: tinyurl.com/pulley-forces (pulley on rope from vertical lines to centered on more horizontal spans)
    49 replies | 5893 view(s)
  • theTreeSpyder's Avatar
    11-09-2016
    theTreeSpyder replied to a thread Rope in Gear Forum
    Not sure if writing book or what; but all this has long been on bucket list.. am re-re-re-re-doing a showcase page of pix and animations going back 20+ yrs. starting out on BBS's on dial'em up and wait plan. (walmart 25hrs. free monthly/ad infested internet of the 90's) . . . Note how neatly 30,60,90 degree line spreads use 50/60/70% as load multiplier (respectively) to find line tension. . some explanation /old man story hour i guess: i was working around on contract climbs, bumping into some of the same local climbers on bigger and neighboring jobs. i always took some ribbing on owning more than 1 rope, never white/no 2 matched, slings, krabs, pulleys, T shaped portAwrap etc.; The rest of crew were basic 1 rope charlie's : single whore out piece or 1/2" arborplex(at best) used for climbing, rigging, dragging, trailer tiedowns, engine hoist, left loaded over night in the rain etc. as needed(i guess that way they knew it was on the truck?) i kinda started out untrained, working on a drinking crew whom had a bad tree climbing problem! . Seems i accidentally used math and rigging in the same sentence while in a mixed company on a fat payday party after ~3weeks of working together; >>and then was challenged did i really climb with a protractor along with all the other bells and whistles... After sum explanation and more rather spirited conversation; the mother vulcan same (roughly equivalent loading % of load)zone was born...
    76 replies | 5056 view(s)
  • theTreeSpyder's Avatar
    10-23-2016
    Condolences Big Al. . i guess i cut class with MB i was doing straight noLife midnight sanitation in one of the south's largest slaughter houses; picking up more hrs. when i could. Started helping a buddy part time mostly felling on some days, weekends fer ca$h. Came to climbing here and there, i did it without any gear as he did. i was always climbing and tying knots when a kid and some farm work etc. . After mebbe a year i had already caught the bug; then saw a guy tied in doing line clearance. next time i was 50' up roping down limbs with 3/8" hardware store nylon by myself it didn't seem so right for some reason. . Fell in with a drinking crew that also happened to do some tree work on the side to maintain supply. Eventually learned Taut Line Hitch and was allowed some climbs after ordering line and belt(got phone numbers for catalogs at library), and it was noted none of my knots ever had to be cut off. But, being the sober part of the joke, eventually has it's downsides. Somewheres along the way 2 books: On Rope and Pro. Timber Falling really got me going along w/JerryB's poster for inspiration (and humility if i or any other climber thought they were getting good). . 5yrs or so later found ISA bbs on this thing called the internet with my 25hrs mo. free wallmart internet allotment; i then found i was different even amongst my own! i remember my 1st Sherrill catalog with cartoons etc. being like a Christmas toy catalog to a 6yr.old, even drooled on it the same!
    30 replies | 978 view(s)
  • theTreeSpyder's Avatar
    10-23-2016
    Welcome, nice drops and loader! . Even without high dollar gear i'd always favor stack together, drag whole branches to feed chipper(or cut down area) >> with truck etc., even if have to feed rope to truck fed into back yard where can't get vehicle into etc. Confine mess, sawdust etc.. most raking to chipper/loading zone handle in bulk w/less exertion using mule to drag instead of man. >>Minimal cutting in kill zone, for minimal mess and less time in kill zone by ground control (slowing down climber) Also, practices more scale-able workflow to duplicate to larger jobs w/more climbers etc. Jest my cheap, over-priced 2cents!
    13 replies | 436 view(s)
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  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.
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    Daniel
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