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docs/Assignments/week_13_molding_and_casting/molding_and_casting.md

@@ -107,3 +107,51 @@ This is the end result of me modeling it. I wanted to machine the components out
 ![alt text](image-18.jpg)
 ![alt text](image-19.jpg)
 
+Now that I have measured the moulding block the design maximum are 15x10 CM. So I am going to change my design to that.
+
+![alt text](image-20.jpg)
+So my longest side is 20cm's if I scale that down by a bit more than 1/4 it fits within the mould.
+
+![alt text](image-21.jpg)
+So I scaled it down to 70%.
+
+When creating toolpaths I had a bit of trouble of making a negative cut. So I am going to make a smaller block than the wax block and combine it.
+
+Then I asked Henk how big the milling bit is. It is 5 mm's.
+
+![alt text](image-22.jpg)
+My design has holes less than 5mm's wide So I will need to fix that.
+
+![alt text](image-23.jpg)
+
+Here is the fixed design with 5mm thick walls.
+
+## Milling the moulds
+Milling the moulds didn't go that straight forward for me. Henk thought us how to mill the moulds and it was a bit different than milling wood. For example the residu of the milling we where going to use to melt into a new block.
+
+To mill a wax block it first needs to be fastened. We did that using 4 pieces of wood.
+
+![alt text](image-24.jpg)
+While fastening the wood push it into the wax block. Otherwise it may get loose during milling and this can happen.
+
+![alt text](image-25.jpg)
+
+What happened here is that the mill went into the block and the block wasn't fastened properly. What also didn't help is that the bottom of the wax block was un-even on the bottom.
+
+So after that I made a file to flatten out the wax block. But there was some damage that was going to be visible in the final product. After flattening it out I milled it again and this time it went well.
+
+Because the mould didn't have any edges because my design was too big so I made some ducktape edges and poured the mould in.
+
+![alt text](image-26.jpg)
+
+Henk also gave me the tip to measure with water how much space I needed to fill in. So I first filled it with water and poured it into a cup. After that I knew how much moulding fluid I needed.
+
+One day after I removed the silicone from the wax.
+
+![alt text](image-27.jpg)
+
+Here you can see the part that broke off during the milling accident. Then I used a stanley knife to cut all the excess off and then this is my final product of the week.
+
+![alt text](image-28.jpg)
+
+For next time: I should've poured slower and more gentle because there are a lot of air bubbles and be more careful when milling and better inspect the block and if its mounted well.