Building a Z-Rig 3:1 Mechanical Advantage Hauling System
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- Опубліковано 29 тра 2021
- Building a Z-Rig 3:1 Mechanical Advantage Hauling System
In this video we take a look at the basic concepts of mechanical advantage with ropes and pulleys, how and why it works, and then how we use those concepts to build a z-rig 3:1 hauling system.
"We are all apprentices in a craft where no one ever becomes a master." - Ernest Hemingway
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- Patrick
"a cam... you know what I mean" .... "I've forgotten some stuff and messed some stuff up" ..... hahaha
Patrick, this is the most thorough, comprehensive, and "stick-in-memory" explanation of a Z-rig I can remember seeing! (but then my memory isn't the greatest... that's why I'm watching how to do a Z-rig again :) .......... but I think this will stick with me for a long time.... and if I forget I know where to come back to.
Thanks for your generosity in sharing your hard-won knowledge and experience and your admirable teaching skills!
Best regards and keep staying safe!
Hands down BEST explanation of pulleys that I’ve been able to find!
Great presentation!
The more I learn about tree work, the more befuddled I get. Not because the procedure is difficult, just that there are so many different ways to accomplish the same effect.
I'm thinking that learning one method for each task, and knowing it so well that I do it perfect every time, is the best way for me personally.
in the army (rigging intro for vehicle recovery) were were taught to "circle the load" and then count the lines crossed to know the mechanical advantage.
Educated Climber ....yes it made total sense.
You're so educated ☺️ and we are able to follow all the process in details.You explain it all calmly.
Helping a lot of arboristas here in Brazil.Obrigado.
TREEMUGS
You’ve taught me knots and perseverance. Made me an more effective groundie and team mate. Your lens on the world is great. Never stop what you’re doing, man.
Happy Father’s Day! And thanks for all you do!
Very helpful. Lots to learn and I'm still only halfway through the video. I recently started my own channel about knots and climbing/rigging techniques for everyone from the alpinist to the caver to the arborist. I'm glad you're here to help teach me!
Thank you Patrick. This is very informative, as well as entertaining. I'm looking forward to more rigging videos. This should be part of the curriculum at EC's Tree University.
Very impressive Patrick! Perfect explanation, perfect approach for these systems. I look forward to the next video on this topic!! Thanks very much!
You’ve explained this better than anyone else I’ve seen on UA-cam! Thanks Sir!
Your videos and explanations are very detailed and your knowledge on knots is mind boggling to me. I don't do any of this for a living and know my limits when it comes to tree work but have learned quite a bit watching your channel. Thanks for sharing what must be many years of experience for you.
Using the prusiks is a fantastic idea. I will incorporate that into my system tomorrow!!
Exceptionally well done Pat, thank you. I especially like incorporating the progress capture. I'll give that a shot next time I use this setup. Helluva job! :-)
I learned something new and yet I was familiar with each component--just never thought to combine them in that way! Thanks!
Great job explaining these systems. I use them rarely and often forget how I set it up the last time! I still have one of your stickers from like 5 or 6 years ago on my Alveo Vent 👊
That is very useful information Patrick. You explained is very well. As I do solo tree work this year I'm sure this will come in handy. Thanks Patrick
Nice demonstration of a useful setup. Thanks 👍🏻
Its nice watching an informative video with no cuts
Best Z-rig video I've ever watched and I think I've watched at least 30. GREAT JOB! Looking forward to the follow-up video. By the way, I call it a 222 rig; two biners, two pulleys and two Prusiks.
This video is like the North star of pulleys for me. I always come back to it. I had a true 2 to 1 today where I pulled a snatch block into a storm damaged hangup tree with a throw line. Moving pulley was in tree on a strap, rope anchored at the ground then through moving pulley, then through redirect pulley to a truck. Tree came right down and thick strap eliminated risk of 3 to 1 strain from truck on the moving end of my 1/2" bull rope
Nice work! Sounds like you have a solid grounding in the fundamentals... - Patrick
Great explanation as always. Thank you.
You made sense to me and im a pretty mych a beginner when it com s to knots and pulleys. Thanks
Dude. Tremendous. Thanks for the video!
most excellent .. information
Would
love to see this set up in action pulling a 5’ oak log up a wooded incline.
Love the prussic idea!
Thanks for your set up explanation I found it both informative and interesting. Regards
Great video. I don't know anything about this but I'm very comfortable with your explanations. Perfect for the layman. Keep up the great work😁
Great video. Thanks for sharing! 👍🇺🇸🇺🇸🇺🇸
Awesome man: super helpful
i have heard one way to tell how to count the legs in mechanical advantage it is , if the last pulley is coming towards you than you can count that as a leg but if it doesn't than it doesn't count as mechanical advantage. i believe i heard it from Richard Mumford's channel. that guy does real world testing and explains real world scenarios, so the average person can understand. he also does a lot of testing different setups and he tries to prove or debunk topics relating to tree work and climbing. he is a brilliant man.
not talking tiring anything away from this awesomeness you are doing on this channel, just a suggest check out his channel if you already haven't.
be well my friend!
Thanks for your sharing.
Great video an information.
Thank you 🎉
Nice job
This guy is AWESOME 🤟
Great! Thank you
nice job
Awesome video. Starts building the system at 8:10.
Also some efficiency loss at stretch of rope. How2Not2 (or something like that, he does highline slackline stuff and gear break testing, great channel) did a recent test on this with different ropes - although he was jerking them, not doing a steady pull. Thank you for this!
Would that be just like filling a Liam from a tree on a pulley or some other device that the only way they could get full weight would be at a full 180
Good idea with the prussiks. Thanks
Sheeesh first babyyy
I don’t climb or work in tree industries. I had NO clue this was possible! I knew if the pulleys and knots but did not dawn on me to combine them.
One question - how hard is it to release the holding prussic knot at the rear pulley
Thanks for this video :)
Hello, for the progress capture prusik at the back, if I had to release it under a heavy load it would be difficult. But this is where the sit-back might actually help. I would get someone to help by putting maximum tension on the pull line which would collapse the prusik into the pulley, and then while they held the tension, it should be possible to crack that prusik cord so it would release fully. Hope that helps... - Patrick
@@TreeMuggs_PatrickM thank you so much :). I really enjoy your channel !
@@TreeMuggs_PatrickM I should have read through the comments before I went and tried this.....all's well that ends well though!
Where is the best place online to buy this kind of equipment?
Under the scenes and behind the hood... That was foo tunny.
What would be application ? Where would pulleys be set?
A leaner you want to go a different direction would be a good use for this.
leaners, zipline/speedline tensioning, critical tops, etc..... - Patrick
As a caretaker, this will be handy to move 4' x 6' wheeled garbage bins 3 times a week over a distance of 40 feet. Thanks
Requesting a video on what to use for economical ground anchors for speed lines and such when there are not trees or anything to tie to. For instance I was planning on using a metal 5' fence post driven almost entirely into the ground at a 45 degree angle and clipping to the tip. This arborist has a similar setup using chained metal stakes ua-cam.com/video/iEWJAAminAM/v-deo.html What do you use when you need a ground anchor in the middle of an empty field?
m.ua-cam.com/video/jltMZmlezZM/v-deo.html
check my community tab on the channel, I posted a Picket ground anchor setup from the Army Rigging Manual... - Patrick
@@TreeMuggs_PatrickM Thank you! That is extremely helpful!
Hey guys, thanks for the good vids, I just wanted to point out this document, it’s the old army recovery manual, some very useful info on pulling forces and also that ground anchor system, just on a bigger scale. 👍👍
👊👊peace 😉
ia802706.us.archive.org/28/items/Fm20-22VehicleRecoveryOperations/Fm20-22VehicleRecoveryOperations.pdf
I am really trying to understand this thing you do. I find very few of your folks can start out doing a ZYX and not turn it into a DEF before it is over. Try to do one thing at a time with the morphing into one or more other things in the mean time. I an other ignorant folks would appreciate it. But thank you for trying to teach the unlearned. After watching this video 10 more times I may be able to follow you
Okay 👍...lol