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michka:research:cooked_materials [2014-07-02 12:27] – michkamichka:research:cooked_materials [2014-10-03 12:37] (current) – michka
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 ===by Chloé Lequette & Michka Mélo=== ===by Chloé Lequette & Michka Mélo===
  
-This page reports the afternoon of experimentations we had with [[http://biomimdesign.wordpress.com/|Chloé Lequette]], a friend, designer & biomimicryist co-founder of [[http://www.enzymeandco.com|Enzmye & Co]]. She taught me how to cook a material based on eggshells and starch-less flour she developed last year for the Designers Days in Paris, and we experimented further with this recipe, adding other ingredients.+This page reports the afternoon of experimentations we had on June 24th with [[http://biomimdesign.wordpress.com/|Chloé Lequette]], a friend, designer & biomimicryist co-founder of [[http://www.enzymeandco.com|Enzmye & Co]]. She taught me how to cook a material based on eggshells and starch-less flour she developed last year for the Designers Days in Paris, and we experimented further with this recipe, adding other ingredients.
  
 ====How to produce the material ?==== ====How to produce the material ?====
  
 ===Step 1 - Eggshells=== ===Step 1 - Eggshells===
 +
 +{{:michka:research:img_5686.jpg?300|}}
  
    * Get some eggshells.     * Get some eggshells. 
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    * Carefully remove the inner skin/membrane.    * Carefully remove the inner skin/membrane.
    * Crush them in bits as tiny as possible.    * Crush them in bits as tiny as possible.
 +
 +{{:michka:research:img_5700.jpg?300|}}
  
 ===Step 2 - Flour=== ===Step 2 - Flour===
  
-   * Mix flour in excess of water. +{{:michka:research:img_5690.jpg?300|}} 
-   * Let it sit for a while. + 
-   * Once you can see two fractions, a solid one sitting at the bottom of the flask, and some white water on the top, discard the water fraction and keep the solid fraction.+Mix flour in excess of water and let it sit for a while. 
 + 
 +{{:michka:research:img_5697.jpg?300|}} 
 + 
 +Once you can see two fractions, a solid one sitting at the bottom of the flask, and some white water on the top, discard the water fraction and keep the solid fraction. 
 + 
 +{{:michka:research:img_5705.jpg?300|}}
  
 This step aims at dissolving the starch contained in the flour, and keep only the glutinous fraction of the flour. This step aims at dissolving the starch contained in the flour, and keep only the glutinous fraction of the flour.
  
 ===Step 3 - Mixing=== ===Step 3 - Mixing===
 +
 +{{:michka:research:img_5707.jpg?300|}}
  
 Mix the glutinous fraction of flour with crushed eggshells.  Mix the glutinous fraction of flour with crushed eggshells. 
  
 The proportion changes the nature of the material. Chloé goes for 2/3 wet flour for 1/3 crushed eggshells, but she says that half-half is also fine. The proportion changes the nature of the material. Chloé goes for 2/3 wet flour for 1/3 crushed eggshells, but she says that half-half is also fine.
 +
 +{{:michka:research:img_5708.jpg?300|}}
  
 ===Step 4 - Forming=== ===Step 4 - Forming===
 +
 +{{:michka:research:img_5715.jpg?300|}}
  
 You can either mold it, or use a syringe as an extruder. You can either mold it, or use a syringe as an extruder.
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 ===Step 5 - Drying=== ===Step 5 - Drying===
  
-Then, just let it dry overnight.+{{:michka:research:img_5725.jpg?300|}}
  
-You can accelerate drying by using a microwave. One minute at 1000 W is too much, but five minutes on the grill position were fine.+Then, just let it dry overnight. You can accelerate drying by using a microwave. One minute at 1000 W is too much, but five minutes on the grill position were fine.
  
 ===Final Result=== ===Final Result===
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 ====Others experimentations==== ====Others experimentations====
  
-We tried to replace crushed eggshells by some mineral powder with found in a jar here at FoAM. However, it did not work out well, as many cracks appeared when drying.+{{:michka:research:img_5716.jpg?300|}} 
 + 
 +We tried to replace crushed eggshells by some mineral powder with found in a jar here at FoAM.  
 + 
 +{{:michka:research:img_5717.jpg?300|}} 
 + 
 +The liquid material looked very nice. However, it did not work out well, as many cracks appeared when drying. 
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