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Making a mold with coffee waste

Learn to mold, some sources

Molding as prototyping technique

For molding with coffee, some general molding techniques apply. 

Below some sources. 

 

The basics of molding: 

https://www.instructables.com/Introduction-to-Mold-Making-Casting/

One part mold:

https://www.instructables.com/Simple-One-Part-Mold/

Two part mold: 

https://www.instructables.com/Two-Part-Molds/

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Why mold with coffee?

  • Currently materials with a long lifespan are used (silicone, ...) for making a mold, but the mold itself is only needed for the duration of  the "molding" process. What if we make a mold that degrades after use? 

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Coposition

Black/green    tea 2 tsp (find local)

Water              2 l

Vinegar           200 ml

Scoby            15 pieces (minimum)

Tools

  • coocking pot

  • plastic container(s)

  • wooden or cardboard frame (size of the containers)

  • tea strainer

  • Cotton cloth

Uses and difficulty

Uses

Replacements for fabric, lasercutting

Difficulty

*** (dirty but easy)

Recipe

Step 1:

Bring the water to the boil. Add the sugar and let the tea steep in the water.

Step 2:

Allow the water to cool to a temperature not exceeding 30 °C and add the vinegar. Then pour the liquid into a plastic container and add the cut pieces of scoby. Cover the container with a cotton cloth.

Step 3:

After 3 weeks a new layer of scoby has formed and can be removed from the container. Clamp the scoby in the wooden or cardboard frame using clamps or nails. After drying for 1 week, the leather is ready for use.

End Of Life

Reusable

- Tea mixture (up to 3 times)
- Scoby
- Wooden frame

Compostable

- Leather
- Tea & bag

Other form of waste

Cardboard frame

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