Commit b6c4b7e3 authored by Charles De Mey's avatar Charles De Mey
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Molding and casting descriptions

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### 20T
The first type of casting material we tried was [Mold Star 20T by Smooth-On](https://www.smooth-on.com/products/mold-star-20t/). As you can see in the picture below, there is a "Part A" and a "Part B". To cast this material, you need a ratio of 1:1 (by volume) between the two parts. Applicable to all types of casting materials, we have to mix these two parts thoroughly. It is also very important to remember to always stir horizontally, meaning not moving the dowel (or any other mixer) up and down to prevent air bubbles.
The first type of casting material we tried was [Mold Star 20T by Smooth-On](https://www.smooth-on.com/products/mold-star-20t/). This is a silicone rubber, meaning it is a soft and flexible material. As you can see in the picture below, there is a "Part A" and a "Part B". To cast this material, you need a ratio of 1:1 (by volume) between the two parts. Applicable to all types of casting materials, we have to mix these two parts thoroughly. It is also very important to remember to always stir horizontally, meaning not moving the dowel (or any other mixer) up and down to prevent air bubbles.
<center>
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### Dragon Skin
[Dragon Skin 10NV](https://www.smooth-on.com/products/dragon-skin-10-nv/), like the Mold Star 20T, is a silicone rubber. It is very common to have tiny bubbles with this material specifically. This is usually not a problem if you gently shake the mold
<center>
![](../images/week10/dragonskin.jpg)
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### Smooth-Cast 300 Casting
The [Smooth-Cast 300Q](https://www.smooth-on.com/products/smooth-cast-300q/), unlike the 2 previous materials, is a hard material. This means that once it has cured, it will be solid and completely rigid. As you can see from the 3rd image below, the only slight issue was just a bit of overflow which can easily be resolved by sanding down that edge.
![](../images/week10/tempincrease.jpg)
![](../images/week10/Testcast.jpg)
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