Welcoem to posts!!
in the future - u will be able to do some more stuff here,,,!! like pat catgirl- i mean um yeah... for now u can only see others's posts :c
Stay humble, tree man - you're not as good as you think you are 😎
Climb high, work smart, read more. - Patrick
151 - 17
Count your blessings, name them one by one...
58 - 7
Welcome to the future. Here's my top 9 books of the past year, in no particular order:
1. The Chrysalids - by John Wyndham
2. One Flew Over The Cuckoo's Nest - by Ken Kesey
3. Technopoly: The Surrender of Culture to Technology - by Neil Postman
4. Ready Player One - by Ernest Cline
5. Ender's Game - by Orson Scott Card
6. Stranger In A Strange Land - by Robert Heinlein
7. The White Pill: A Tale Of Good and Evil - by Michael Malice
8. The Golden Spruce: A True Story of Myth, Madness, and Greed - by John Vaillant
9. Quit: The Power of Knowing When To Walk Away - by Annie Duke
Currently looking for book recommendations, if you grok. Hit me up in the comments.
Climb high, Work smart, Read more.
- Patrick
25 - 8
All I want for Christmas is some good vectors...
- Patrick
31 - 1
Look out world, here I come
140 - 22
About the last video:
I had a calibration issue with the output load cell so it seems like all of the resultant pulls were 25-50 lbs overstated, hard to say. I do believe that the relative ratios for each setup are accurate in terms of efficiency. I'm going to redo them, but here's the results I got:
Trucker's Hitch construction:
Front Back Input Output Result
rope on rope carabiner 2.0 kN 3.9 kN 1.95:1
rope on rope pulley 1.85 kN 4.3 kN 2.32:1
carabiner carabiner 1.94 kN 3.9 kN 2.01:1
carabiner pulley 1.9 kN 4.45 kN 2.34:1
pulley carabiner 2.0 kN 5.15 kN 2.58:1
pulley pulley 1.84 kN 5.7 kN 3.09:1
The final setup testing at 3.09:1 is why I'm doubting the calibration, but hopefully they are all off by the same amount.
Maybe the most interesting takeaway for me in this test is how, as I added hardware and made the system more efficient, it became harder and harder to input that same 2 kN starting pull on the fiddle block. Efficiency in a hauling system is a two edged sword. On the one hand, a higher percentage of your input is amplified and transmitted through the system all the way to the output. On the other hand, as friction decreases, the system makes it easier for the load to "pull back" and oppose your input force. This is true even with progress capture built in, because the progress capture doesn't engage until the active pull lets up.
Without the 2nd load cell on the input, I would probably have just thought that I was fatigued from pulling so much on the fiddle block. But it was very clear that getting back to that starting input of 2 kN was getting more and more difficult as I went along. Very interesting...
- Patrick
35 - 2
Climber Nation, we have 2 load cells, lots of ropes, pulleys, carabiners, hardware, climbing and rigging gear. We can test input forces and corresponding output forces. What should we test first?
Here's some ideas I have:
2:1, 3:1 Z-Rig, Trucker's Hitch all the different ways, 5:1 Fiddle Block, effect of angles, efficiency of pulleys, basal anchor forces, canopy anchor forces, and the list goes on and on and on.
But I want to hear from you guys. What should we start with? See you soon...
- Patrick
59 - 32
The trucker's hitch is a simple, low-tech way of generating mechanical advantage on a rope. In its simplest form it produces a crude 3:1 pull using little or no gear, with the anchor end passing around a fixed point such as a hook or a carabiner. Rope-on-rope friction at the load-end cuts into the efficiency but also acts as a bit of progress capture.
On the opposite end of the complexity scale is the Z-Rig, the high-tech version of the same concept. Incorporating 2 pulleys and 2 prusik cords to provide adjustability and proper progress capture, the Z-Rig closely approaches a proper 3:1 pull.
You can think about the Trucker's Hitch and the Z-Rig as occupying opposite ends of a continuum, from simple and low-tech, to advanced and high-tech. In between these two are many hybrid setups, incorporating pulleys and prusik cords as needed.
The Trucker's Hitch, as a concept, is just a rope tied to a load, run back to an anchor point, then passed through a midline knot of some type, with the end then being pulled against the load. There are lots of options for midline knots. The slip knot/marlinspike hitch or alpine butterfly are popular, but I prefer two other versions for my trucker's hitch: the Dolly Knot, and the Harness Loop. The dolly knot is how I normally tie it, because you don't need access to the end of the rope, and it unties very easy even after a heavy load. If you want to add hardware into the loop to increase efficiency, such as a pulley or carabiner, then I use a Harness Loop, ABOK #1050.
Who still uses a good old-fashioned trucker's hitch at work?
- Patrick
64 - 8
Hey Climber Nation, Patrick here. Just wanted to let you know how much I appreciate all of the likes, comments, and support of this channel over the last 5+ years. I have set up a new email account for my subscribers to reach out to me with questions. Ask me anything tree work related and I will do my best to answer them on the channel...
You can reach me at "questions@educatedclimber.com"
Thanks for being here ✌️
- Patrick
323 - 14
The Picket ground anchor system, for doing speedlines and ziplines when you don't have a suitable anchor point available where you need one... "@zaccheus tree care" "@matt jones" you can read more here: www.firstduetackle.com/2014/08/28/picket-anchor-sy… - Patrick
56 - 6
Welcome fellow students to the home of the Educated Climber project on Youtube. Lead by Patrick Masterson - tree climbing and rigging enthusiast.
I am a family man, husband, father, tree guy in recovery, and a believer. Also, a semi-trained professional, writer, and oak man with euc man tendencies. Diligently trying to advance the craft of tree climbing and rigging.
"Love the hand that fate deals you and play it as your own, for what could be more fitting?"
— Marcus Aurelius
Climb high. Work smart. Read more.
Visit me at www.educatedclimber.com