Started week10

docs/assignments/week10.md

+# 10. Molding and Casting
+
+## This weeks mission:
+
+- [ ] Review safety data sheets 
+
+- [ ] Make test casts
+
+- [ ] Design a mold
+ 
+- [ ] Mill a mold
+ 
+- [ ] Create a cast using the mold
+
+## My plan
+
+My original idea was to cast a bumper/safety case around the child unit for my final project. 
+
+But since I do not decided yet on final dimension of the thing, and it will be a bit large, I find it to be a waste of materials to cast such a thing if it will then turn out to not fit at all! 
+
+<figure markdown>
+  ![Temp design, at this moment in time!](../images/week10/first01.jpg)
+  <figcaption>Temp design, at this moment in time!</figcaption>
+</figure>
+
+So what I want to do is to create a mini version of it, using similar form but scaled down. 
+
+## Materials
+
+These are the materials I'll be working with: 
+
+- Mold Star 15 SLOW from Smooth-On
+
+        TODO: Add more data about this mold
+
+- A wax block with the following dimensions:
+
+| Dimension | mm |
+| :---- | :----- |
+| Length | 175 |
+| Width | 75 |
+| Height | 37 |
+
+For this project, I want to use just the single wax block. I'm thinking of making a two sided mold, milling each part into one half of the block, then cutting it in two 
+to mate them together. I'm rather conserned with conserving materials and must also keep time on the mill in check. 
+
+## Design
+
+I create a new design in Fusion 360, with the above considurations in mind. 
+
+### The scaled down placeholder for the child unit
+
+I create a object with dimensions of: 
+
+| Dimension | mm |
+| :---- | :----- |
+| Length | 65 |
+| Width | 50 |
+| Height | 20 |
+
+Here is the simplified & minified version:
+
+<figure markdown>
+  ![Mini unit](../images/week10/case01.jpg)
+  <figcaption>Mini unit</figcaption>
+</figure>
+
+### The mini case
+
+I then copy the object and add 5mm to each side using the `Press pull` function. Adding a flange to each side, I now have a simple smooth outer object which will be the case!
+
+Using the `Combine` function, I cut the unit from the case body. Remember to select `Keep tools` if that suits you, else the body you used to cut will be discarded. 
+
+<figure markdown>
+  ![Smooth case](../images/week10/case02.jpg)
+  <figcaption>Smooth case</figcaption>
+</figure>
+
+Using section analysis, we can look into the object to verify it is indeed hollow. 
+
+<figure markdown>
+  ![Section analysis](../images/week10/case03.jpg)
+  <figcaption>Section analysis</figcaption>
+</figure>
+
+To create a the "window" part of the case, I add a negative offset to the object to extrude and cut through the case.
+
+<figure markdown>
+  ![Offset of 3mm](../images/week10/case04.jpg)
+  <figcaption>Offset of 3mm</figcaption>
+</figure>
+
+Now I extrdude the inner part to create the "window".
+
+<figure markdown>
+  ![Window](../images/week10/case05.jpg)
+  <figcaption>Window</figcaption>
+</figure>
+
+Then I just add a little flange to the outer window edge to make it all smooth and nice!
+
+<figure markdown>
+  ![Ready!](../images/week10/case05.jpg)
+  <figcaption>Ready!</figcaption>
+</figure>
+
+I will now call this a finished design of the case and move onto the next bit!
+
+### The mold
+
+
+
+
+