diff --git a/docs/files/recipes/bioresin.md b/docs/files/recipes/bioresin.md
index 7e3d6d70141bb56bb68176ff56c1ef1d40723035..eee68111af21d8149d9d6c4b8b8d46f78929c744 100644
--- a/docs/files/recipes/bioresin.md
+++ b/docs/files/recipes/bioresin.md
@@ -32,6 +32,7 @@ Final form achieved after: 10 days
* Functions as plasticizer that bonds with the gelatine (makes it flexible).
* **Water - 480 ml/gr**
* To dissolve and mix the polymeer and plasticizer
+* **A large round coffee filter** to absorb froth
## Tools
@@ -62,8 +63,9 @@ Approx. 300 ml (make sure to evaporate a lot of water during cooking time)
1. **Cooking the ingredients**
- - Simmer and slowly stir the mixture between 60-80 degrees celcius for at least 20 minutes or up to an hour. Turn it lower when bubbles appear: you don't want the liquid to move, don't boil it. This sample has some bubbles due to vigorous mixing.
- - Longer cooking time allows more water to evaporate. You will get a thicker liquid. To cast larger volumes and solids with this recipe, evaporate a lot of water, until it's very thick.
+ - Simmer and slowly stir the mixture between 60-80 degrees celcius for at least 20 minutes or up to an hour. Turn it lower when bubbles appear: you don't want the liquid to move, don't boil it.
+ - Longer cooking time allows more water to evaporate. You will get a thicker liquid. To cast larger volumes and solids with this recipe, evaporate a lot of water, until it's very thick. Sometimes it's worth reheating and melting scraps, they've already dissipated a lot of water and result in nice castings.
+ - If froth appears on top of your liquid and doesn't go away, you can use a coffee filter to absorb it by covering the surface with it and then taking it off. In cooking this is called a *cartouche*, you can also make one from kitchen paper. Take a round coffee filter that fits into your pot. Absorb additional froth using some kitchen paper.
1. **Casting**
@@ -78,12 +80,12 @@ Approx. 300 ml (make sure to evaporate a lot of water during cooking time)
### Drying/curing/growth process
- Mold depth: 7 cm (filled up until 2.5cm high)
-- Shrinkage thickness: 20-30 %
-- Shrinkage width/length: 20-30 %
+- Shrinkage thickness: 10-20 %
+- Shrinkage width/length: 10-20 %
**Shrinkage and deformation control**
-Letting it dry up to ten days to get to the final form. It will be flexible at first but will slowly harden until its totally rigid.
+Letting it dry up to ten days to get to the final form. It will be flexible at first but will slowly harden until its totally rigid.
**Curing agents and release agents**
@@ -106,7 +108,15 @@ The resin does not cure evenly across the surface, some might be negotiated by s
### Process
-*Evaporating water until the liquid is thick like honey, Loes Bogers, 2020*
+*Getting everything ready, Loes Bogers, 2020*
+
+*A lot of froth appearing on this batch, Loes Bogers, 2020*
+
+*Absorb it by covering the surface with a coffee filter for a few seconds, Loes Bogers, 2020*
+
+*Getting the last frothy blobs out with some kitchen paper, Loes Bogers, 2020*
+
+*Evaporating water until the liquid is thick like honey (I separated the batches to speed this up), Loes Bogers, 2020*
*Preparing molds for small half domes (egg cups), and a big slab (silicon mould and separate base), Loes Bogers, 2020*
diff --git a/docs/files/recipes/biorubber.md b/docs/files/recipes/biorubber.md
index de858142997bd30b22b37e9b75a551168c0430ac..a57fd44d68e07ab955e03f0b82567618d4636429 100644
--- a/docs/files/recipes/biorubber.md
+++ b/docs/files/recipes/biorubber.md
@@ -4,9 +4,11 @@
<iframe width="560" height="315" src="https://www.youtube.com/embed/xTVABD1KlsY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+**>> update video <<**
+
### Description
-A rubbery biopolymer based on gelatin and corn starch.
+A rubbery bioplastic based on gelatin and potato starch.
### Physical form
@@ -26,16 +28,16 @@ Final form achieved after:7 days
## Ingredients
-* **Gelatine powder - 50 gr**
+* **Gelatine powder - 50 g **
* Functions as polymeer (so it becomes a solid)
-* **Corn starch - 50 gr**
+* **Potato starch - 50 g **
* Functions as the second polymeer (so it becomes a solid)
-* **Glycerine - 50 gr**
+* **Glycerine - 100 g **
* Functions as plasticizer that bonds with the gelatine (makes it flexible).
-* **Water - 50 ml/gr and a dash extra**
+* **Water - 100 ml/gr and a dash extra**
* To dissolve and mix the polymeer and plasticizer
* To dissolve and mix the corn starch before adding to the other liquid
-* **White vinegar - 15 ml**
+* **White vinegar - 15 g **
* Vinegar is almost always added to starch-based biopolymers to change the molecular structure of the starch, making it stronger and more workable.
## Tools
@@ -133,8 +135,9 @@ Not sure.
## Variations on this recipe
-- Add a **natural colorant** such as a vegetable dye or water-based ink (e.g. hibiscus, beetroot, madder)
-- Add **more glycerine** for a more flexible slab (up to 100 g)
+- Add a **natural colorant** such as a vegetable dye or water-based ink (e.g. hibiscus, beetroot, madder). The vinegar makes this recipe acidic so keep that in mind when using PH sensitive dyes.
+- Add a natural scent to mask the acidic smell of the vinegar.
+- Add **less glycerine** for a more rigid slab (50/50 polymers and plasticizers is considered the max)
- Reduce amount of gelatine or leave it out altogether
- **Stiffeners** such as fibres, yarn or natural debris may be added for more structure and reinforcement.
diff --git a/docs/images/agar1.jpg b/docs/images/agar1.jpg
deleted file mode 100644
index 1b4507e8034f9985e424e8c61593fb42923feb7e..0000000000000000000000000000000000000000
Binary files a/docs/images/agar1.jpg and /dev/null differ
diff --git a/docs/images/agar2.jpg b/docs/images/agar2.jpg
deleted file mode 100644
index 04e4e80b0f682f077d0f2f955038c808e10aa067..0000000000000000000000000000000000000000
Binary files a/docs/images/agar2.jpg and /dev/null differ
diff --git a/docs/images/agar3.jpg b/docs/images/agar3.jpg
deleted file mode 100644
index 0415447a8dac5d119053aba4d86f7913fcf98ff2..0000000000000000000000000000000000000000
Binary files a/docs/images/agar3.jpg and /dev/null differ
diff --git a/docs/images/agar4.jpg b/docs/images/agar4.jpg
deleted file mode 100644
index aaf67341e5ba819a7c6226a0aabdec539c3c3b30..0000000000000000000000000000000000000000
Binary files a/docs/images/agar4.jpg and /dev/null differ
diff --git a/docs/images/resin_froth1.jpg b/docs/images/resin_froth1.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..44420a47f544aac8fc1b81e1223d091fe7b9dabe
Binary files /dev/null and b/docs/images/resin_froth1.jpg differ
diff --git a/docs/images/resin_froth2.jpg b/docs/images/resin_froth2.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..61c1d2ffa843eae7f0405799a854799bd5430b10
Binary files /dev/null and b/docs/images/resin_froth2.jpg differ
diff --git a/docs/images/resin_froth3.jpg b/docs/images/resin_froth3.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..808fb80b0f6660e7dd9c51ff809fd3e6748a07e2
Binary files /dev/null and b/docs/images/resin_froth3.jpg differ
diff --git a/docs/images/resin_froth4.jpg b/docs/images/resin_froth4.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..0955eed3347918430a336b89b2fc67a05bbea86e
Binary files /dev/null and b/docs/images/resin_froth4.jpg differ