How to Make an Impossible Stool - Tensegrity Stool - DIY JIG

This "impossible chair" looks like it's hanging on the chains and it takes most people a long time to figure out how it works.
Tensegrity, tensional integrity or floating compression is a structural principle based on the use of isolated components in compression inside a net of continuous tension, in such a way that the compressed members (usually bars or struts) do not touch each other and the prestressed tensioned members (usually cables or tendons) delineate the system spatially.[Wikipedia]
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MUSIC IN THIS VIDEO *
is from the KZbin audio library
#Tensegrity #JIG #Vorrichtung

[@jdniedner]

With your large scale demonstration I can now understand better how these contraptions work. The small table top baubles that you see on some videos are neat, but don't make understanding the balance of forces apparent. As soon as you sit on your stool it was very clear how the parts interact. Thank you.

[@kastro4460]

The easiest explanation is that the middle chain holds all the tension from the person/items above, and the side chains keep it balanced

[@bmwsincekid]

Kastro44 this comment should have 1k likes this made me understood it😂

[@MarkMcCluney]

I forgot to mention how much I enjoyed your choice of music.

Thank you Mark 😊

[@stanmorehouse1224]

your cat is so chill

[@PachezZ]

I love how the cat just dont care :D

[@aaaooaao9949]

the cat @2:05

[@dienekes4364]

I was thinking the same thing. Until the grinder came out. LOL

[@georgevanvalkenburg2560]

VERY NICE

[@MarkMcCluney]

Absolutely magnificent. And such a compelling video. Excellent job Stephan - this is pure Pöhnlein!

I'm very glad to see you here, my friend. Thank you for your nice comment, I hope you are well 😊

[@LinaScott]

😳 I'm seeing it work yet my brain hurts. Beautiful music with wonderful outcome 😍❤

[@TheWoodYogi]

Superb Stephan 😊 I had an idea that you were planning something like this after showing the concept 😊 Really enjoyable to see 😊 ॐ

Thank you Yogi 😊

[@DocHolle1]

Im Hintergrund wieder schön der (Montags ist der wie alle etwas müde!) "Arbeitssicherheits-Spankontrolleur" zu sehen ;-)

😊

[@raymondstonkus913]

love the cat snoozing on the stool as you work.

[@naoufaltakroumt6373]

It's like you're levitating at the end

[@daveandrews4671]

I love the scary background music!

[@neakemiin]

Sehr interessant. Man möchte nie meinen dass man sich da drauf setzen kann. Klasse gemacht

Vielen Dank Kurt 😊

[@L3ttuc3]

Very nice. I love the look of that stool, simple and a little industrial but very slick. Really nice balance. I want one of these in my office so bad it hurts now.

[@bladeRoller]

Yours is the best and sturdiest ive seen. Mad props

Thank you :)

[@elvampir0]

Nice video! i will start building my own stool tomorrow. I see im not the only one who has a Cat for a workshop companion :)

[@FranciscoJLonga]

Eres la inspiración que me faltaba. Gracias por mostrarnos tu trabajo.

[@fabriziofabrizi5524]

Sono rimasto stupefatto. Grande Stefano. Fabrizio 🇮🇹 proverò a farlo ciao

[@reiner4410]

Hallo Deine Videos sind nicht nur beruhigend und sehr inspirierend , bei keinem anderen schaue ich mir ein video gleich zweimal hintereinander an . Dieses Teil ist auch der Hammer das baue ich nach . 👍👍👍

Vielen Dank 😊

[@SulistiyaHernawan1973]

Kereeeeen welldone

[@denisidrizi4367]

Wouuu. Bravo it llok inposibile but is posibile Antigravity teory is posibile. Gretings from kosovo.

[@SteveFrenchWoodNStuff]

Very clever. I love it!

Thank you Steve

[@diygeneration5566]

*Wow, that's a great idea! I am excited! I'm going to try to upgrade your stool. I will definitely make a video about it. I wish you many successful projects in the future!)*

[@idtjemaker4909]

I want one, 2... yes 6 is good for me 😍

[@Bartetmedia]

Basically, the center chain does all the work and the 4 corner chains keep it centered.

[@TheLaudi]

Wow! Genau darüber hatte ich bei deinem Schwebedings nachgedacht, ob es auch möglich ist einen belastbaren Hocker mit dieser Konstruktion zu bauen. Und wie man nun sieht, hält auch das wie von Geisterhand... es bleibt für mich nach wie vor faszinierend! Danke fürs Bauen und Zeigen; das will ich jetzt auch bauen 👍

😊

[@SinisterSummers]

Awesome build. Also saw that you have a Tardis in the background. Nice!

[@fabriziofabrizi5524]

Mi iscrivo sei eccezionale. Bellissime le musiche. Ciao Fabrizio

[@zedman442]

That centre chain taking all the load? Great job 👍

[@Glebiys]

Zed Man most of the load

[@LUSEJA]

@@Glebiys ALL of the load

[@geromatezwanzig8789]

@@Glebiys Not most... ALL the load ! :-)

[@carmelpule6954]

Because the plane of the seat is not reinforced and so, a little flexible, then the lower apex of the inverted triangle would move laterally to the line joining the other two legs. The triangle with its feet on the base will hold well. Due to the " give" in the seat the stool will suffer a twist too unless the top apex of the triangle at the center under the seat is well anchored to twisting/ rotating of the seat. At 7:44 the distortion of the seat and the looseness of the chains are easily noticed and he stabilizes it with using his feet. I would add a small invisible triangle made of a fishing line to hold the lower apex from lateral motion and maybe a strong invisible fishing line for the suspension chain!

[@christopherjessngo629]

Great work man i'll be making one of those too...

Thank you 😊

[@AlekseyLeontev]

Замечательный стул!

Thank you 😊

[@azbart3326]

This is absolutely insane

[@martinwolf5957]

Hallo Stephan Grandios, hätte nie gedacht dass es funktioniert aber es geht. 👌 👍 👌 Super. Liebe Grüße Martin 🙋‍♂️

Vielen Dank Martin 😊

[@bastelopa664]

Der Meister der schrägen Ideen hat wieder zu geschlagen. So was musste ja nach dem Schwebedings kommen. Gruß aus dem Münsteland Bastelopa Heinz

😊

[@TheKobiDror]

Ich finds klasse, wie die Katze daneben chillt 😁

[@Sadowsky46]

So faszinierend, daß ich fast den 👍 vergessen hätte 😉

[@HansPeterLehmannhpl]

Hallo super gemacht, " Aufhebung der Schwerkraft " , man sollte nicht glauben das diese Konstruktion so stabil ist. Danke fürs zeigen Mfg. vom Ndrh. Hans-Peter

Vielen Dank 😊

[@stevenbennett3805]

The roof of the Tropicana Field dome in St Petersburg, Fl is supported using this same principle.

[@tomn2629]

Nettes Projekt. Aber die Hintergrundmusik könnte ruhig was leiser sein, da wird man ja verrückt bei.

[@berniesr]

Clever and artistic. I see a new cat 😀

😊

[@aurettameier2720]

nice cat bro i really enjoyed it

[@provisoriobackup4675]

Fantastic.

[@pres838391]

Super

[@Hatchmade]

That was really cool

[@ingeniousmechanic]

Cool, but that music sounds like those sadder, cheaper versions of the Titanic flute

[@cloudshigh5091]

I watched it up because of the title. I stayed because of the music

[@ClintRoseCarving]

Stephan that is incredibly cool! Nicely done.

Thank you Clint 😊

[@soulwood]

Nice, man!

[@EuerKonstantin]

Wow das es wirklich hält hätte ich zuvor nicht gedacht. Tolle Arbeit 👍 Gruß #EuerKonstantin

Vielen Dank 😊

[@빠딱성질]

참 보면 볼수록 신기하다

[@antoniomallari2622]

The tensil force of the center chain is the heroe, all the 4 chains will react as balance force stabiliser only when unbalance loads is added.

[@LIS_Project]

Danke für das interessante Video!🙏 Großartige Unterstützung für die Lotus-Pose🌼. Der Rücken und die Wirbelsäule werden automatisch gerade. Wir wünschen Ihnen alles Gute!

Thank you 😊

[@valveman12]

Well done!

[@tzisorey]

Imagine using this principle to make a rope ladder that goes UP

[@Cragified]

You do realize this is just the central chain taking the load and the other four balancing the lateral movement under tension. No different then a spoke bicycle wheel. The more opposing tension elements added the more stable it will be.

[@tomislavgrizelj7761]

That's actually possible you can stack these structures on top of each other It's just a question of stability and tension

[@joaoclaudios.freire2132]

Olá, boa noite! Belo trabalho e muito interessante. Parabéns.

[@EduardoMotta]

Fantastic!!!

Thank you 😊

[@theodorostsilikis4025]

how is that possible!!!.....very nice work and idea.

[@oscarbarrios1421]

Invento antiguo de la década de los cincuenta.

[@LeRoyRowland]

Super impressed by your flexibility!!

[@hansmatzweissefeder]

interessante konstruktion - optisch hat man nicht das gefühl sich drauf zu setzen - aber die zugkette hält ja doch 🤘😎💚👍🍺🖖

😊

[@ПРИЗНАКИРАЗУМНОЙЖИЗНИ]

Цепь в центре держит всю конструкцию, боковые четыре для страховки. Молодец, всё круто 🤘.

[@hectorbecerra7016]

Mesa yoga hermoso trabajo

[@ciprianofilho7334]

simplesmente fantastico.

[@Glebiys]

Great video, great demonstration! Thanks a lot! P.S. please don’t use music like that in your videos again, please please...

[@lindendrechsler6003]

Meditating cat at 2:05 😊

[@Felhek]

I want a tensegrity bed

[@NotJustSawdust]

Amazing! Just that!

Thank you Gerrit 😊

[@PowerScissor]

That table saw looks like it can handle some large pieces for such a small footprint. Is that a custom build table?

[@anjasgie8512]

Megic😁👍🏼

[@AndyCPugh]

Sehr nett!

[@brianadamo8374]

i love you cat

[@Inspiringquotestips]

impressive i have one but different one

[@mrupholsteryman]

So...if you were able to get clear chain for that center piece especially....this would be pretty cool! 😇😎

😊

[@zarmr9719]

He got Great Person at 7:04

[@TehAntiSpammer]

I wonder if people realize that by doing something *impossible* that literally makes it no longer impossible :P

[@1402teddybear]

Cool!!!!!!!!!

Thank you 😊

[@nobbik9767]

Genial 😁👍

Danke :)

[@michaelhaser5819]

Cool Stephan ! Nur fliegen ist schöner..... ;-)

Vielen Dank 😊

[@paulobarbosa1102]

Show, top 😃😃😃📷

[@evgenpomar5286007]

*+++++ КРУТАЯ ВЕЩЬ*

[@scottframe7809]

next time make the tips of the triangles shorter so that there is a bigger gap so the illusion is more noticable from a eyelevel

[@Arupnara1000]

Amazing, I must saw. Great job and design. What is the angle of your lap joint you cut on your sled? ..Thanks for the Video. I'm inspired

Thank you, the angle was 60°

[@Arupnara1000]

@ Thanks. I'm on my way (...slowly) to making one. Any additional suggestions will be appreciated. Cheers!

@@Arupnara1000 before you start, watch this video kzbin.info/www/bejne/kJ2yl4Gom5Z9fbM here I explain all my mistakes I made and how to improve the chair.

[@Arupnara1000]

@ Thanks. I think your original design where you used the chains is still an excellent design. Although, I would recommend that you enclose the "V" shaped legs (top and bottom) in sockets (4 total) made of wood, glued and screwed/bolted. You could make the wooden sockets 1" High x 3/4" thick, mitered on all 4 corners. I would prefer 3/4" x 3/4" for looks. Doing the socket thing will give the legs greater stability after they are glued and bolted. Also, I think you should adjust the chains so they are very stiff --real stiff. As a side note: I built a square "Tensegrity" chair (..still finishing work in progress) and have stiffened the 4 chains and my chair does not wobble. My chair is designed to carry up to 300 pounds. It is very stable. Nonetheless, I still like your design better because of the "V"/triangular shape look. It is compelling to watch. I'm not a fan of using rope; but I will use cables if I have to. ..You do great work, Stephan!

[@bruce35dc]

Great stool. When's your Tardis going to be done?

[@mariodelacruz7746]

There any available online

[@connorweaver2067]

Where did you get your chains and fasteners? And what lengths (relative to each other) do they have to be?

[@jonatangross3756]

Como calcula el ángulo de corte de las maderas?

[@sarmatskif6660]

Круто.

[@holzmotte]

Hallo Stephan, schön zu sehen, das Du wieder einen Freund in der Werkstatt hast.😊 Der Hocker ist wieder eine geniale Idee.👍 Wie kommst Du bloß immer auf so etwas?

Vielen Dank 😊 , die Idee lag nahe nach dem ich das Schwebedings gebaut hatte kzbin.info/www/bejne/i5SWl6GDhdmoh9E

[@elenin.3228]

Immer wieder genial! Du hast mir eine tolle Idee fuer einen "fliegenden Teppich" gegeben. Hast du auch was aehnliches vor? Das wuerde ich sehr gerh anschauen!

Vielen Dank 😊, ein fliegender Teppich wäre zwar nett, allerdings was macht man damit und wo stellt man den hin?

[@elenin.3228]

@ Es gibt mehrere Moeglichkeiten. Man kann ihn als Tisch oder Couch benutzen. Ich dachte an ein Bett fuer meinen Hund.

@@elenin.3228 Hoffentlich mag das der Hund, denn es wird immer etwas schaukeln

[@samuelhardison2214]

Where can i get the plans to build

[@evox786]

What hardware did you use to attach the hooks to the top piece of wood so that it is flush? Was it just a counter-sunk nut? Very nice craftsmanship!

I think it was a normal nut.

[@paigeney1471]

Do you have the measurements for this, please?

[@Yzkl_Lenhardt]

if it work is it really impossible?

[@michaelroux7278]

Tolle Sache, das Konzept in Miniatur mit dem Stuhl umzusetzen. Habe ich einen Denkfehler oder muss die Kette in der Mitte (mit Schraubverbindungen) das gesamte Gewicht aushalten? Ebenfalls drückt das gesamte Gewicht jeweils auf ein Holz-V und wiederum die vier Ketten aussen teilen sich nochmal das Gewicht !? Nur damit ich weiss worauf ich beim Nachbau achten muss.

Stimmt, die mittlere Kette trägt das ganze Gewicht, die äußeren tragen kein Gewicht, sie dienen nur dazu das Ganze im Gleichgewicht zu halten

[@lukekoleas3378]

Blasphemy! Witchcraft! Sinner. Hahaha I'm silly. Thanks I'm gonna give this a try.

[@hungngoc3915]

excusme, how many degrees does the angle cut? 1:26

[@paulopioneiro1]

É física pura nada excepcional.

[@wwscott7595]

First question, what is the name of your new furry friend, how do you think these things up, could you not give us a wee clue to some of the things like the angle and lengths of the legs, and a comment, you really look the part as a hoodie. Keep em coming o wise one.

The name of my cat is Timo, the angle of the legs are 45°, the length is to long :)

[@wwscott7595]

LOL on the last answer.

[@Andryi_Andreevich_Amrikh]

The candlestick looks like : how to burn your house 😳

[@rodrigoherrera2007]

That´s amazing!! Can I speak about you in my channel?