Update file week11.md

docs/assignments/week11.md

@@ -36,7 +36,7 @@ Another thing to consider is that since we are casting bio plastics off of the m
 
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-### **CREATING TOOLPATHES ON VCARVE**
+### **CREATING TOOLPATHS ON VCARVE**
 
 **STEP-BY-STEP**
 
@@ -128,12 +128,29 @@ Works on both natural and synthetic fabrics but works expecially well on plant-b
 
 ## **GROWING ALUM CRYSTALS**
 
-![Milling](../images/week11/crystals.jpg){ width=1000 } 
-
+![crystals](../images/week11/crystals.jpg){ width=1000 } 
 
 |||||
 | -------------- | --------- | ------------ | --------|
-|  Alum |200g | Water | 600ml |
+|  Alum |200g | Drinking Water | 600ml |
+
+**STEP-BY-STEP**
+
+   1. Boil 1 litre of drinking water. Note that the water has to be really pure in order to grow crystals, so no tap water.
+   
+   2. Prepare a clean container for your solution. A glassware is recommended.
+   
+   3. Add alum to the water until it's saturated (alum stops dissolving in water). I used 200g of alum in 600ml of boiling water.
+
+   4. Mix your solution well.
+
+   5. Place your sample in the solution, make sure it doesn't touch the bottom/walls of your container.
+
+   6. Put a lid on your container to prevent dust from getting in your solution.
+
+   7. Leave it overnight.
+
+   
 
 ### **USEFUL LINKS**