Paris 2024 Olympic and Paralympic Cauldron

Mathieu Lehanneur, EDF

2024

In collaboration with Mathieu Lehanneur, the Olympic cauldron stands as an iconic and poetic work, meticulously designed by Blam from the initial pre-project phases initiated by EDF. This unique creation merges technical expertise with a contemporary aesthetic vision of the flame, contributing to the intensity of the symbolic moment during the opening ceremony of the Paris 2024 Olympic and Paralympic Games. 

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The Paris 2024 Cauldron embodies the power of the Olympic symbol while representing a resolutely sustainable and technically impressive feat, thanks to a lighting system powered entirely by electricity and water. 

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The flame, which takes the form of a floating ring, relies on the simultaneous projection of a mist cloud and a beam of light. This mechanism creates an electric, vivid, and dynamic flame, capturing attention with its resemblance to real combustion. The fusion of mist and light gives rise to a scene in perpetual motion, where the flame seems to feed on the surrounding air, casting a mesmerizing presence over the Paris sky. 

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Beyond its aesthetics, the cauldron is the result of in-depth research into materials, combining mechanical performance with aesthetic sensitivity. Every detail and element was meticulously thought out and designed to offer a visual and emotional experience. Craftsmanship was elevated through material choices and manufacturing techniques that respect both technical requirements and the desire for longevity.

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Through its light, energy, and architecture, the work seeks to awaken a collective imagination of unity, solidarity, and excellence, while embodying a commitment to a more sustainable future.

location

Jardin des Tuileries, Paris , France

year

2024

client

Paris 2024 & EDF

images

blam

Guillaume Lavrut

Mathias Filippini

Felipe Ribon

mission

Technical design, Prototyping, Production, Installation

collaborators

Mathieu Lehanneur - Design

dimensions

Height: up to 60.00m in the air

Diameter: 7.00m

role

Mechanical and hydraulic engineering, Lighting design, Metalwork, Boilermaking

The Olympic Cauldron installed in the Tuileries Garden ©Guillaume Lavrut
The cauldron is positioned on a water basin in the Tuileries Garden ©Felipe RIbon
Every evening, the Cauldron rose into the sky during the Paris 2024 Olympic and Paralympic Games ©blam
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Making-of the Paris 2024 Olympic Cauldron project ©EDF

Two years passed between blam joining the project and the opening ceremony of the Paris 2024 Games. From design, technical development, prototyping, and testing to manufacturing and on-site installation, everything had to be ready for the first flight on July 26, 2024.

Full ring prototype with load testing ©blam
First flight test of the ring prototype ©blam
First assembly prototype of the cauldron's skeleton ©blam
The ring structure is partially milled from aluminum sheets ©blam
Section of the cauldron after machining, before surface treatment ©blam
Custom-machined heat sinks ©blam
Detail of the rigging components ©blam
The inner ring of the cauldron is divided into pre-assembled quarters ©blam
Detail of the assembly at the top of the cauldron, combining machining, welding, and mechanical assembly ©blam

From the meeting of mist and light, an electric flame is born—combustion-free, alive, and in perpetual motion.
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Making-of the cauldron's lighting development ©Feline Studio
First flame prototypes using misting and LEDs ©blam
Final flight and lighting tests were carried out at the blam workshop in Couëron ©blam
Final flight and lighting tests were carried out at the blam workshop in Couëron ©blam
Mathieu Lehanneur, the designer of the Olympic Cauldron, during the final tests ©blam
Before being put into service at the Tuileries Garden, the Cauldron was kept running to verify its operation ©Mathias Filippini
Final flight and lighting tests at the workshop ©blam
Initial stress tests of the cauldron's hydraulic and electrical system ©blam
Tony Estanguet and Mathieu Lehanneur visit the workshop to observe the tests ©blam

From the initial sketch to its monumental scale, the development of the cauldron gives form to a poetic and ethereal vision destined for the Parisian sky.
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The cauldron is entirely finished with a champagne-colored powder coating ©blam
All hardware details were considered during the machining phase to best conceal the technical attachments ©blam
Installation of the cauldron at the Tuileries Garden ©blam
Installation of the cauldron at the Tuileries Garden ©blam
Installation of the cauldron at the Tuileries Garden ©blam
Installation of the cauldron at the Tuileries Garden ©blam
A custom technical area was installed beneath the cauldron ©blam
View from the Musée d'Orsay, the cauldron is ready to rise into the sky ©blam
The balloon is visible from many Parisian landmarks, seen here from the windows of the Musée d'Orsay ©blam

Technology fades behind the symbol: water and electricity reinvent the Olympic flame without altering its evocative power.

Lighting rehearsals the day before the Games' opening ceremony ©blam
Lighting rehearsals the day before the Games' opening ceremony ©blam
Lighting rehearsals the day before the ceremony ©blam
The cauldron in the Paris sky ©blam
For July 14, 2025, the cauldron was lit in the colors of the French flag ©blam
©Felipe Ribon
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The cauldron taking off, filmed from inside the technical chamber ©blam