I sweat stuff in hard and habitually. What kind of increased pretightening can you screech from a good, impacting 2man sweating in to the nose of a Porty-Wrap from an overhead rig?
Sweating In
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Stumper
One Man Band
I sweat in some stuff but 90% of the time I hinge limbs from slack line into tension before tear off. I even let some small stuff shock load. (especially if I am cutting 3 or 4 twenty or thirty pound pieces to lower in one bundle). You know-"Don't sweat the small stuff!".
treeclimber165
Member A.K.A Skwerl
Most of the time there is room to let the load run. I prefer getting the butt end of the limb away from my body as my first priority, and protecting against property damage as second priority. For me, the type of rigging you describe only happens when there is an inexperienced person on the rope who 'pulls it tight and locks it down' rather than letting the limb flow away from me. It also happens every time TWO guys grab the lowering line.
When working with big stuff on a line, a good ground man who knows how far to let it go before locking down (if at all) is worth the money.
Great weather here - has made for a great month - Is it spring?
Great weather here - has made for a great month - Is it spring?
Having the load move away from me is A#1, but if i can engineer it to move away without shockloading, dropping i will. Of course that is not rigging to the host spar, but we still tension then to take as much play out of the machine, for most immediate catch for option of control/bufferring. A groundie that can catch and slide to no damage or perceptable shock on cutter is very much worth the bucks (guess i shouldn't put a $ instead of s) , i think pre-tensionioning can enable him more, by shocking less, not to mention help pull.
If there is tension in the line, that is force pulling. The more tension, the more force to have available. This force can be made to pull diffrent directions than just down, thus i play with strategies of sweating in, self tightening rigs to place increased power/force on specific load hitchpoints (near CoB for leverage). Using the length between hinge and hitch to sweep the hitch under support (if it sweeps further before tearoff, slacken rig so hitch point arcs under support before cutting free), on a well shaped hinge pattern, with wide mouth face for largest sweep, whose steering and bufferring is increased by a hinge called on to be stronger in it's attributes. i try to exercise and maintain these skills/habits that i make and employ these decisions quickly and positively.
If the hitchpoint on load is between the hinge and Higher Support, the tension will pull away, if the hitchpoint is on the otherside of the support from hinge, it will pull back towards you. Line em'up, no swing. Same thing in climbing, the tension and angle of the line determine how far you can swing, leaning away from support before jumping on a tight line even farther away, can put more helping force in your swing, leaning towards support on taut line before sliding off to minimize force. A lot of my rigging insights begin or are reinforced by climbing comparisons, for that switches me into being the load. Almost like i can see what it feels like to be the load, every pull, tension, angle, speed etc. So i maintain this open 'channel' between rigging and climbing, seeking every lesson/ reinforcement of 1 yield the like in the other, for they are both rope work.
We seek to put the tightness in, for you can always loosen it, but not always tighten it; thus pretightening grants the largest range of control over a very important variable- "line tension". i find that to be parallel to giving yourself the greatest range of control over cutting speed, i do this by eliminating as much wood as possible from a hinge before final backut. Doing so, leaves less fibre to fight thru, thus the release can go faster-if you choose; the speed limit would be lower with the extra competing fibre to fight thru. So, as both strategies expand the capabilities to the more elusive end of their range, they give you more control options over line tension and release speed. Both powers can be backed off through the corse of rigging, giving up to the second adjustment in the maximumized range during the operation of rigging. You can always let slack in, slow down the saw if needed; tension and speed, you might have to set up ahead to get the most control, lowest impact IMHO.
We on occassion have even taken the control leg of a 5/1 compression tackle while it is pretightening, anchored it on the porty, and sweated into the 5/1 with impacting body weight, for that last tweak of tightness. Even when we would let it run for most complete control over running. Sometimes the tension is helping the hinge close, making a slower, dampened motion, if you can make the tension and gravity flex the hinge over delivering load (hitch point in rig)as close to target (usually plumb-bobbed under single support) as possible before tear off for least force.
Has anyone read approximations of increased force from this simple, no tool, powerfull technique of sweating in? Mike (was going to try to homogenize that between Mike and Maestro......)on meter?
If there is tension in the line, that is force pulling. The more tension, the more force to have available. This force can be made to pull diffrent directions than just down, thus i play with strategies of sweating in, self tightening rigs to place increased power/force on specific load hitchpoints (near CoB for leverage). Using the length between hinge and hitch to sweep the hitch under support (if it sweeps further before tearoff, slacken rig so hitch point arcs under support before cutting free), on a well shaped hinge pattern, with wide mouth face for largest sweep, whose steering and bufferring is increased by a hinge called on to be stronger in it's attributes. i try to exercise and maintain these skills/habits that i make and employ these decisions quickly and positively.
If the hitchpoint on load is between the hinge and Higher Support, the tension will pull away, if the hitchpoint is on the otherside of the support from hinge, it will pull back towards you. Line em'up, no swing. Same thing in climbing, the tension and angle of the line determine how far you can swing, leaning away from support before jumping on a tight line even farther away, can put more helping force in your swing, leaning towards support on taut line before sliding off to minimize force. A lot of my rigging insights begin or are reinforced by climbing comparisons, for that switches me into being the load. Almost like i can see what it feels like to be the load, every pull, tension, angle, speed etc. So i maintain this open 'channel' between rigging and climbing, seeking every lesson/ reinforcement of 1 yield the like in the other, for they are both rope work.
We seek to put the tightness in, for you can always loosen it, but not always tighten it; thus pretightening grants the largest range of control over a very important variable- "line tension". i find that to be parallel to giving yourself the greatest range of control over cutting speed, i do this by eliminating as much wood as possible from a hinge before final backut. Doing so, leaves less fibre to fight thru, thus the release can go faster-if you choose; the speed limit would be lower with the extra competing fibre to fight thru. So, as both strategies expand the capabilities to the more elusive end of their range, they give you more control options over line tension and release speed. Both powers can be backed off through the corse of rigging, giving up to the second adjustment in the maximumized range during the operation of rigging. You can always let slack in, slow down the saw if needed; tension and speed, you might have to set up ahead to get the most control, lowest impact IMHO.
We on occassion have even taken the control leg of a 5/1 compression tackle while it is pretightening, anchored it on the porty, and sweated into the 5/1 with impacting body weight, for that last tweak of tightness. Even when we would let it run for most complete control over running. Sometimes the tension is helping the hinge close, making a slower, dampened motion, if you can make the tension and gravity flex the hinge over delivering load (hitch point in rig)as close to target (usually plumb-bobbed under single support) as possible before tear off for least force.
Has anyone read approximations of increased force from this simple, no tool, powerfull technique of sweating in? Mike (was going to try to homogenize that between Mike and Maestro......)on meter?
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Acer
ArboristSite Operative
?
treeclimber165
Member A.K.A Skwerl
For the most part I agree with Acer on your last post, Spydey. For most of the 6 paragraphs my eyes just glazed over.
But I got something about honkin' down on a 5/1 rig and holding the tension on your porta-wrap. That type of torque can be close to 1000 lbs of pull! you gotta be taking some monster pieces with that setup or else they will spring back up at you! Good to do on the occassional large piece, but 99% of my rigging is smaller limbs from 50-300 lbs. If I'm rigging 1000 lb pieces I have a 35 ton crane parked on the job to lift it off.
But I got something about honkin' down on a 5/1 rig and holding the tension on your porta-wrap. That type of torque can be close to 1000 lbs of pull! you gotta be taking some monster pieces with that setup or else they will spring back up at you! Good to do on the occassional large piece, but 99% of my rigging is smaller limbs from 50-300 lbs. If I'm rigging 1000 lb pieces I have a 35 ton crane parked on the job to lift it off.
5x1 sweated in was extreme, have used it for pulling tree over, rigging as illustrated, overcoming someone else's impending, teetering ****oo(that time 5x1 fed into 3x1!! no time for crane). Each time observing and playing with these things at this higher level, taking full advantage of the oppurtunity's utility and lesson values.
i think many things can be orchestrated together like load pulling away from climber and no impacting, some things can be accessed by giving the rigging machine the correct macchine instructions, by dialing in it's line tension, hinge strength, sweep etc.
i think that line tension is an enabling power and constant component of rigging; both commonly overlooked. Gimme a break, i'm still just a lil'guy, only now in the land of real giants, the largest living organisms to ever roam our planet, i just gather and maximize what i can to overcome those odds!
i think many things can be orchestrated together like load pulling away from climber and no impacting, some things can be accessed by giving the rigging machine the correct macchine instructions, by dialing in it's line tension, hinge strength, sweep etc.
i think that line tension is an enabling power and constant component of rigging; both commonly overlooked. Gimme a break, i'm still just a lil'guy, only now in the land of real giants, the largest living organisms to ever roam our planet, i just gather and maximize what i can to overcome those odds!
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