Voir la source de Spinning Kinetic Sculpture RGB/en

{{ {{tntn|Tuto Details}}
|Type=Creation
|Area=Art, Decoration, Electronics, Energy, Furniture, House
|Tags=kinetic, sculpture, laser, kinétique, illusion, optique, optic, moire, led, arduino, decoration, art, rgb
|Description=Automatic Kinetic Sculpture which creates visual illusions: Moiré pattern.
It does run for more than 30 minutes on a single full winding, isn't it spectacular?
In addition: a fully RGB ambient lighting. The wheels run only with the force of a spring, no motors!
|Difficulty=Medium
|Cost=50
|Currency=EUR (€)
|Duration=6
|Duration-type=hour(s)
|Licences=Attribution-ShareAlike (CC BY-SA)
|Main_Picture=Spinning_Kinetic_Sculpture_RGB_gifprez.gif
|SourceLanguage=fr
|Language=en
|IsTranslation=1
}}
{{ {{tntn|Introduction}}
|Introduction=<big>Greeting to you Maker !</big>

Are you curious? Do you like interior decorations that animate and create a beautiful visual show and yet you don't know how to make a Kinetic Sculpture? Then this tutorial is for you :)

If you want to watch what the final result looks like: I made a [https://www.youtube.com/playlist?list=PL_7tLqqQRSR_Xd5aRAs7i2mpFPNkJYd6S Youtube Playlist].'

This Spinning Kinetic Sculpture RGB is a sculpture you can fix on a wall or on a support. It is made of 2 main identical wheels that spin in opposite direction, which is creating constructive and destructive visual interferences, it is called the phenomenon of [https://en.wikipedia.org/wiki/Moir%C3%A9_pattern Moiré].

The concept is purely kinetic (spring), it allows the wheels to spin at different and irregular speeds but most importantly to run for a long time (+30minutes). After you rewind the mechanism the wheels start to spin in opposite direction. As soon as the gravity makes the front wheel reverse its spinning direction and pushes some pawls in the system, the 2 wheels are pushed and start to spin again. This is happening until the spring is fully unwinded. If properly optimised and by reducing the friction, it is possible to get a runtime of more than an hour! 

I got my inspiration from pre-existing kinetic sculptures, but I decided to make my own design and my own version of the mechanism which is the crucial point of the sculpture.

Until the day, I tried, made, changed and improved my design and finally made a fresh new version by accumulating all my efforts and previous trials. The result is a fully working Kinetic Sculpture that costs almost nothing and more importantly: the size of the mechanism is twice smaller than other documented kinetic sculpture online!

You can also fix it to a support like a mounting base of a screen which will allow you to move it around but a wall will give you a far better looking result.

The center of gravity of the wheel is placed so it acts like a pendulum. The radius of the pendulum plays a major role in the total runtime of the sculpture.

<div class="mw-translate-fuzzy">
It can look complex on the first sight but if you look more closely at each step you will see that it is fairly easy :). It is also very instructive because you start to understand that every piece plays a major role in the running of the sculpture. You end up with an almost magical piece of art that creates spectacular effects!
</div>

<div class="mw-translate-fuzzy">
You can complete the sculpture with an RGB LED Ring connected to an Arduino, an ON/OFF switch and a battery so it looks even more amazing. Please note that only the LEDs need an electrical source of energy :)
</div>

You can choose to not use the LEDs, it's up to you. You're only limited by your own imagination.

Understanding the mechanism doesn't seem easy at first sight but that's exactly why I documented everything and wrote this tutorial with plenty of pictures and videos. What was a pain in the ass for me is going to be very easy for you. Isn't it why Internet exist? :)

[http://creativecommons.org/licenses/by-nc-sa/4.0/ '''''<small>CC BY-NC-SA 4.0</small>''''']
}}
{{ {{tntn|TutoVideo}}
|TutoVideoService=youtube
|TutoVideoURL=https://www.youtube.com/watch?v=pCI9otwj-LY&list=PL_7tLqqQRSR_Xd5aRAs7i2mpFPNkJYd6S
}}
{{ {{tntn|Materials}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_DSC06653.JPG
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06048.jpg
|Step_Picture_02=Sculpture_Kinétique_à_effet_Moiré_DSC06045.JPG
|Step_Picture_03=Sculpture_Kinétique_à_effet_Moiré_DSC06049.JPG
|Step_Picture_04=Sculpture_Kinétique_à_effet_Moiré_DSC05892.JPG
|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC05898.JPG
|Material=Total cost estimated under 50$. You will need:
* 1x Constant Force Spring [http://shop.sdp-si.com/catalog/product/?id=A_3X51-20005 A 3X51-20005] or [http://shop.sdp-si.com/catalog/product/?id=A_3X51-20006 A 3X51-20006] - $18.32 15.50€ [https://dpk3n3gg92jwt.cloudfront.net/domains/designatronics/pdf/81015039.pdf PDF] & [http://shop.sdp-si.com/catalog/?cid=p579 Catalogue]

* 5x - '''608 Bearings'''  - 3€ [https://www.123roulement.com/roulement-608-2RS.php Shop Français] & [https://www.aliexpress.com/item/8PCS-608-2RS-SI3N4-ABEC-7-8X22X7MM-Skateboard-Hybrid-Bearing-7-Ceramic-Balls/32342893985.html Aliexpress]

* 4x - '''305x305mm Contreplaqué'''/Acrylic/Plywood 3mm - 7.5€ [http://jr-contreplaque.fr/contreplaque-exterieur-standard/53-r-contreplaque-peuplier-exterieur-3mm.html JR-Contreplaque]

* 1x '''M8 Bolt''' 60mm with 1 or 2 nut M8

* 3x '''M5 Bolts''' 40mm

* 4 '''Bolts''' M5 or vis to fix to the wall/support

* 1x'''Vis'''to fix the spring to the pulley 3mmDiam 10mmLong 

* 2x '''Weights''' 30grammes

* Embout EarCleanner '''Spiral'''

* '''LED Ring''' RGB adressable approx 70mm diam - 5€

* '''Arduino ATTiny'''  -Under 1$

* '''Battery'''(+'''Voltage Regulator''') or Wall Adapter + '''Switch''' ON/OFF
|Tools=Wood Glue, Black & White Spray Paint, Lubricating Oil for the bearing, SuperGlue, Screwdriver, Soldering Iron, Glue Gun, Dremel, Cutting tool, Laser Cutter
|Tuto_Attachments={{ {{tntn|Tuto Attachments}}
|Attachment=Piecesdecoupe.svg
}}{{ {{tntn|Tuto Attachments}}
|Attachment=DecoupePart1.svg
}}{{ {{tntn|Tuto Attachments}}
|Attachment=DecoupePart2.svg
}}{{ {{tntn|Tuto Attachments}}
|Attachment=ShemaKinetic.svg
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{{ {{tntn|Tuto Step}}
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06048.JPG
|Step_Title=Cut the plywood with the laser cutter
|Step_Content=Cut the first svg file on 2 sheets of 300cmx300xm

Do the same for the second file

The cutting file is about 300cm by 300cm so if you have a 600x300 you can cut them two by two by merging the files. 

Bring together similar pieces so it's easier to work.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Spinning_Kinetic_Sculpture_RGB_schema.png
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06052.JPG
|Step_Picture_02=Sculpture_Kinétique_à_effet_Moiré_DSC06059.JPG
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06178.JPG
|Step_Title=Glue the different pieces
|Step_Content=Glue according to the photos

The 2 wheels are the same, just don't forget to align the holes.

Offset Pulley : I/J/J/J

Centered Pulley : D/E/F/F/E/D with the D in the same directions.

Support for the main Bolt: A/A'
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_DSC06472.JPG
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06481.JPG
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|Step_Picture_04=Sculpture_Kinétique_à_effet_Moiré_DSC06691.JPG
|Step_Title=Paint the wheels and the support
|Step_Content=<div class="mw-translate-fuzzy">
I used shiny paint fora better reflection of the light but it's up to you :)
</div>

Paint in black the 2 wheels and I' which will block the spring later.

Paint your support in white if you have one.
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{{ {{tntn|Tuto Step}}
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06181.JPG
|Step_Title=Clean and Optimise your bearings
|Step_Content=Open you bearing to check if there is any additional grease.

Use some dishwashing liquid and warm water to clean out the grease, we need to replace it with a better one.

Lubricate your bearing with a batter grease like Spray WD40.

You can also spin your bearing with a Dremel one by one, this will spread the oil and optimise the performances.

Si vous avez des roulements avec un joint noir en plastique il est possible de le replacer après nettoyage.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Spinning_Kinetic_Sculpture_RGB_anigif8.gif
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06410.JPG
|Step_Picture_02=Sculpture_Kinétique_à_effet_Moiré_DSC06223.JPG
|Step_Title=Place the bearings.
|Step_Content=Use a hammer if you can because the diameter of the holes is slightly smaller than those of the bearings.

1 Bearing on each side of the centered pulley

1 bearing in each wheel and 1 in B which is going to be the back support of the back wheel.

Attention la poulie centrale est construite de telle manière qu'on ne pourra pas retirer facilement les roulements.
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{{ {{tntn|Tuto Step}}
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|Step_Picture_04=Sculpture_Kinétique_à_effet_Moiré_DSC06664.JPG
|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06716.JPG
|Step_Title=Build a support to fix the sculpture
|Step_Content=Build a support with more plywood, screws, and a screen stand.

Or, simply drill your wall so you can fix the support A/A' to the wall.

Fix A/A' and don't forget the main M8 Bolt, fix firmly.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_DSC06555.JPG
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06506.JPG
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06470.JPG
|Step_Title=Fix the pawls
|Step_Content=The pawl of the back wheel is placed in front of the external pulley. You fix it using a nut but let it rotate freely. Don't forget to cut the bolt just after the final nut.

The other pawl is fixed using half a piece of wood glued to the bolt but not to the pawl(still needs to move freely). Cut the bolt just after the wood part, it needs to be as short as possible because this is mm sensitive.

The pawls need to rotate on their M5 bolt freely until we glue a small piece of wood to the wheel to stop its course.  Check the pictures to see.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_DSC06497.JPG
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06501.JPG
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06409.JPG
|Step_Title=Place the Spring and fix the external pulley
|Step_Content=<div class="mw-translate-fuzzy">
Before putting the spring in place it is important to mark the end of the spring with a piece of tape. This will allow us to check when the spring is almost fully winded and stop before it's too late. Check the pictures :)
</div>

The external pulley is placed on the back wheel: Head of the M5 Bolt/ Back Wheel/ Nut/I/J/J/J/I'.

Only the J are glued together to hold the spring. I' is glued to the end of the bolt to stop the spring. Don't forget to cut the bolt.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Spinning_Kinetic_Sculpture_RGB_anigif3.gif
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06653.JPG
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06841.JPG
|Step_Title=Réaliser le montage Arduino pour controller les LED
|Step_Content=Réaliser un montage avec un Arduino ATTiny, une batterie, un switch ON/OFF, un régulateur de tension et un anneau de LED RGB adressable.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_DSC06657.JPG
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06659.JPG
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06675.JPG
|Step_Title=Ajuster et fixer les poids sur les pales
|Step_Content=Fixer environ 30 grammes de plomb ou tout autre petit objet métallique lourd sur chaque pale marquée d'un bout de scotch sur les photos.

Sur la roue nous faisant face on peut fixer un peu plus de poids car il n'y a pas le ressort qui pèse sur cette roue. On peut donc compenser en fixant un autre poids plus léger que les autres à l'opposé pour alourdir la roue.

Pour faire des tests je conseille de fixer des poids au bout des pales seulement avec du scotch afin d'ajuster les poids facilement avant d'atteindre le résultat recherché. Cf prochaine étape pour tester les poids
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{{ {{tntn|Tuto Step}}
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|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC06860.JPG
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06814.JPG
|Step_Title=Aligner les pièces dans l'ordre
|Step_Content=Dans l’ordre : Support avec Boulon / Ecrou / Roue 1 / Piece CG / Poulie Centrale / P.CG / roue2 / Ecrou Final ou H

Voir étape suivante pour venir fixer le ressort avant de placer la dernière roue.
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{{ {{tntn|Tuto Step}}
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06877.JPG
|Step_Title=Fixer le ressort à la poulie centrale
|Step_Content=Fixer le bout du ressort à l'aide d'une vis de 3mm de diamètre et pas plus de 10mm de long dans l'embout troué du ressort à l'emplacement correspondant sur la poulie centrale.

Cf photo pour voir les pièces du mécanisme entre les roues.
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{{ {{tntn|Tuto Step}}
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC06901.jpg
|Step_Title=Observer et se laisser hypnotiser
|Step_Content=Pour faire fonctionner : maintenir la roue arrière fermement et faire tourner la roue avant dans le sens des aiguilles d'une montre, quelques tours suffisent, mais faites attention de ne jamais faire plus de 20 tours. En effet, en faisant ça on déroule le ressort de la poulie excentrée sur la poulie centrale, s’il est complétement déroulé il faudra venir le remettre en place à la main en démontant une partie de la sculpture, c'est vraiment pénible donc faites attention.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_DSC06056.JPG
|Step_Picture_01=Sculpture_Kinétique_à_effet_Moiré_DSC05921.jpg
|Step_Picture_02=Sculpture_Kinétique_à_effet_Moiré_DSC05922.jpg
|Step_Title=Enjoy les chutes de bois parfaites
|Step_Content=Les chutes de bois principales ont été personnalisé pour avoir des côtés de même longueur et peuvent donc être fixé les unes aux autres pour créer des formes, les possibilités sont Infini.

Par exemple elles peuvent être arrangées pour former un anneau autour de la sculpture si elle est fixée à un mur.
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{{ {{tntn|Tuto Step}}
|Step_Picture_00=Sculpture_Kinétique_à_effet_Moiré_anigif.gif
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|Step_Picture_05=Sculpture_Kinétique_à_effet_Moiré_DSC07049.jpg
|Step_Title=Maintenance
|Step_Content=Pensez à vérifier régulièrement après plusieurs utilisations que la vis fixant le ressort à la poulie intérieure ne s'échappe pas, revisser si nécessaire.

Changer la pile du montage Arduino lorsque les LED ne s'allument presque plus.
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{{ {{tntn|Notes}}
|Notes=
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{{ {{tntn|Tuto Status}}
|Complete=Yes
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