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michka:research:cooked_materials [2014-07-02 12:23] – michka | michka: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 Chloé Lequette, a nice friend, designer & biomimicryist co-founder of [[http:// | + | This page reports the afternoon of experimentations we had on June 24th with [[http:// |
====How to produce the material ?==== | ====How to produce the material ?==== | ||
===Step 1 - Eggshells=== | ===Step 1 - Eggshells=== | ||
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* Get some eggshells. | * Get some eggshells. | ||
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* Carefully remove the inner skin/ | * Carefully remove the inner skin/ | ||
* Crush them in bits as tiny as possible. | * Crush them in bits as tiny as possible. | ||
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===Step 2 - Flour=== | ===Step 2 - Flour=== | ||
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- | * 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. |
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+ | 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. | ||
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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=== | ||
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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. | ||
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===Step 4 - Forming=== | ===Step 4 - Forming=== | ||
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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. | + | {{: |
- | 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. |
===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. | + | {{: |
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+ | We tried to replace crushed eggshells by some mineral powder with found in a jar here at FoAM. | ||
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+ | The liquid material looked very nice. However, it did not work out well, as many cracks appeared when drying. |