This is the most detailed test,and analysis on the Rope Wrench and Petzl Zigzag. Glad I bought a Zigzag. Deeply Appreciated. Your a Mathematician,and Arborist.

Where do you live?

You missed the ultimate best kind of all! As a child, in my backyard there was a tree that, from the base to about 10 feet off the ground, grew at a 45 degree angle. About 5 feet above the bend where it went from 45 degrees to vertical, I attached a rope. Swinging away from the tree, there was the usual long pendulum motion, but when the rope hit the tree, I could pump with my legs (I stood on the loop at the bottom)and the sudden truncating of the length of the pendulum increased my velocity rapidly, the thrill was exhilarating. Somebody please build one of these and let me know how much fun you have.

good work

dont ever tell anyone where it is

You are a legend. Keep up the good work!

Best video ever

Can the zip line carry someone back to the starting point? I’m like you king at installing one to get down a hill to a lake.

Happiest trees in the world!

You do a wonderful work.. m just getting relaxed watching those wonderful swings.. love ur work

So just drilled through the tree for the line ?? OMG

Bro why didn't you just climb the trunk would have been faster just need to make sure you use a ladder for the first 15ft.

Any idea if I have just one tree 50 feet no ladder lol searched everywhere and I can’t be drilling that high

I don’t think the argument was so much about the unpredictable wear. It was about the rope wrench collapsing on the zig zag links and can cause collapse.

Do you every come down to the Atlanta area (north)? Or know someone that provides similar services in this area?

Pretty shocking

Where did oyu buy your hardware? and what are ther specs o the hardware?

Bugs are eating that tree up

Pat?at 7:45 what was that throwline container ..that popped open.long before they made them? ????merry Christmas

How will you even get down Patrick Brandt 🤔😨😬😧🇺🇸🇮🇹🙀💀🤕😵😵‍💫😮

Did you stop making videos?

I’m dizzy watching this lol what a great video.

So cool love it😊

Wow. That was very informative and puts to rest some of my concerns with the Petzl zigzag. Thank you.

What is the maximum height with a two rope swing that a person can pump themselves? My limb is 23’ from the ground. It is close to horizontal. I did not off set the ropes like you do so one of my ropes is about an inch longer. I used a bowline knot with a Scott’s stopper knot and then duct taped the tails of the rope. Then put the other end of the ropes through the loop and pulled them around the branch. I just can’t seem to get it going very high. I also built a swing out of lumber and chain that is 9’ off the ground and I seem to be able to get this one higher off the ground, but of course the arc is shorter. I was wondering the physical limits of a person being able to swing, but I think that movement of the branch, stretching of the rope, and any unevenness of rope length further reduce the maximum swing potential. My 9’ swing is very sturdy and solid and of course the chains don’t stretch. So I’m wondering if this is the reason it swings better or is the arc on the 23’ swing just beyond the physical limits of body weight being able to power it. I’d love to learn more about those physics and if there are any tricks to gain additional height. Thanks!

To reiterate what others have said, thank you so much for making this video. Clears up the functional and safety concerns regarding the Zig Zag plus in an SRT configuration and your scientific assessments leave no stone unturned. Wouldn't surprise me if Petzl proffered this video in promotion of the Zig Zag. Wish videos with this level of detail existed for many other arb products. Many thanks again 👏👍

Say hi to the Allreds from Mom.

Thank you for your detailed description.

Not that it’s a major issue but it’s interesting how the screw gate turns and opens during the ride, and the screws down again.. The con of screw gate carbiners..

Great demonstration of how your zip line works with all the accessories. Well done!

if i owned my buddies place it would be an amuzement park

Those are some decent swings! I love it.

it seems like the weight of the line will start pulling the tree over. This does not seem like a healthy rig for the tree. Why not use a strong post that has two or more steel cables anchoring it to the ground?

Wow, thanks for prompt reply. 😊 Obvs , for me, the weight is going downhill. Is there some sort of brake on the motor?

now petzl will redesign new version

very great information. thanks very much for this video

Wow that’s a nice yard

Can u get us a link or description of the mounting bracket, hardware you used please?

I want one👍😎

Interested in the zz

Did it completely wrong

Imagining myself up there, way up high, with that heavy big power tool gives me the willie's.

I wonder how zillon without rope wrench would work for SRT 😊

Where do I get that anchor so I can put the cable through the tree? What is it called?

Could you provide a list of the hardware materials you used? Want to do something like this for a client in our area. Unless you want to come down to South Florida and help out!

Great job. Ignore all the naysayers, and I’m sure an arborist would do just that when it comes to the crazies.

I liked this idea so much, I bought the same reel. It just came yesterday. Can't wait to use it!

First stitch the eye calculate the number of stitches the strength of the thread how many stitches to match the rope strength, plus some say maybe 20% extra then a proper whipping over the sewing before the shrink wrapping

i fucking love science

This was very informative thank you for putting this together.