week17

docs/assignments/week17.md

@@ -680,11 +680,15 @@ I was using a linkage to connect arm & leg gear, however the leg gear moved not
 
 <iframe src="https://player.vimeo.com/video/448035226" width="640" height="480" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
 
-That's why I decided to add the hole to fix leg gear.
+That's why I decided to add a hole onto the frame so I can screw the leg gear onto it and fix the movement.
 
+![](../images/week17/week17-41.png)
 
 And I put the little key part in as the head holder.
 
+![](../images/week17/week17-42.png)
+
+This is how it looks like when assembled!
 
 ![](../images/week17/week17-34.png)
 
@@ -694,7 +698,7 @@ This is how I put the rubber bands onto Elmo's head, arms and legs.
 
 Tadaaa!
 
-![](../images/week17/week17-37.png)
+![](../images/week17/week17-40.png)
 
 
 ### **Program**

docs/projects/final-project-concept.md → docs/projects/final-project-a.md

-# Final project concept 
+# Final project - MINI SALT FACTORY
 
+**Slide**
 
 ![](../images/concept/overview02.png)
 
+**Video**
+
+<video width="700"  controls>
+  <source src="../../presentation.mp4" type="video/mp4">
+</video>
+
+
+
+
+Here is a bonus video I made for friends. It is longer but explains everything in a more detailed manner.
+<iframe src="https://player.vimeo.com/video/442733878" width="700" height="600" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
 
 
-This is an older model I created with Fusion360.
- 
-<iframe src="https://player.vimeo.com/video/390710451" width="640" height="480" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
 
 
 ## **What will it do?**
-- An interactive learning material for chemical engineering about 
-    - how chemical plants look like in general 
-    - what the concept of “continuous process” is
-    - what control parameters are involved when designing/running a chemical plant and how they affect the production
--	Target age: 9+ (younger age can also learn from watching demo)
--	Scale: approximately 0.6 cubic meter.
+
+It distillates ocean water and makes pure water & salt. 
+
+- the distillation tower condense ocean water (approx. 5% salinity) to pure water and condensed salt water (approx. 15% salinity).
+
+- the condensed water is heated in a pan to make salt.
+
+With the control panel, user can change the temperature of distillation tower heating, and reaction time to see how that effects the amount of salt produced. 
+
+It serves as an interactive learning material for chemical engineering about 
+
+- how chemical plants look like in general 
+
+- what the concept of “continuous process” is
+
+- what control parameters are involved when designing/running a chemical plant and how they affect the production
+
+Target age: 9+ (younger age can also learn from watching demo)
+    
+Scale: approximately 1.6 cubic meter.
 
 
 ## **Why make it?**
-There isn't many learning/teaching materials on chemical **engineering**.  
 
-Yes - there are various existing learning materials about chemistry, but most of them focus on reactions inside laboratories. 
+When talking about chemistry education, people tend to focus on reactions inside a lab, 
+
+while overlooking the manufacturing/engineering aspect. 
+
+![](../images/fp/fp-01.png)
+
+Chemistry in general can be totally different when coming to large scale production. 
 
-However, the mechanism can be totally different when coming to large scale production.   
 Reactions/productions designed for a beaker can easily fail in a factory.  
 
-This installation focus on the engineering side of chemistry, and informs learners about: 
+Therefore, I made MINI SALT FACTORY that focuses on the production system/engineering aspect of chemistry.
+
+Through interactions with MINI SALT FACTORY, learners can learn about: 
 
 - the basics of chemical engineering,
 - the concept of a "continuous" process
@@ -35,71 +64,68 @@ This installation focus on the engineering side of chemistry, and informs learne
 
 ## **What materials and components will be used?**
 
-![](../images/concept/concept03.png)
-
-1. Body: Welded with stainless steel   
-2. Heat sensor: thermistor  
-3. Flow (out): flow sensor, molded connector, ball valve & servo motor / solenoid valve  
-4. Heater: band heater  
-5. Salinity sensor  
-6. Control display: LCD display  
-7. Display: LCD display  
-8. Flow (in): flow sensor, 3D printed peralstitic pump, tube  
-9. Hotplate: Heater, molded pan  
-10. Control panel: laser cut panel / app
-
-Packaging: Laser cut transparent acrylic, LED, sound.
+![](../images/fp/fp-03.png)
 
-## **Where will come from? & How much will they cost?**
+- Condense tower: 
+    - body **welded** with **stainless steel**
+    - heat sensing using a **thermistor**
+    - heated with an **electric stove** controled using **solid state relay (SSR)**
 
-### **Bills of materials**
+- Feed (for condense tower): 
+    - **3D printed** peristaltic pump with **silicon tube**
+    - operated with **DC motor**
+    - **laser cut acrylic** frame
 
-[Link](https://docs.google.com/spreadsheets/d/1I6Tjt6qgDweDd0C76cW3mJEWDHu6O1weU_6a_4BEpxI/edit?usp=sharing)
+- Outlet (for condense tower): 
+    - **Solenoid valve**
 
-![](../images/concept/concept02-1.png)
+- Heating pan (for salt production from condensed salt water):
+    - heated with an **electric stove** controled using **solid state relay (SSR)**
 
 
-## **What parts and systems will be made? & What processes will be used?**
-
-- Additive fabrication processes:
-    -  3D printed peristaltic pump
-- Subtractive fabrication processes:
-    - CNC machine milled circuit board
-    - Laser cut control panel
-    - Packaging - laser cut transparent acrylic  
-- Electronics design and production, embedded microcontroller interfacing and programming
-    - All the electronics part produced using CNC machine
-    - Communication between more than 2 boards 
-- System integration and packaging
-    - All the packaging?
-- Extra: welding
-    - Body
+- Control panel: 
+    - structure made with **laser cut MDF** 
+    - buttons made using **tactile switch** combined with switch cap made from **molding & casting**
+    - decoration using **vinyl cut stickers**
+    - **LEDs** as indicators
 
-## **How is the project going to be developed?**
+- Trolley: 
+    - **CNC** milled **plywood**
 
-This project will be developed through 3 spirals. This is the schedule.
+- Electronics:
+    - **CNC** milled **control board**
 
-![](../images/develop/develop01.png)
+## **Where will come from? & How much will they cost?**
 
-**1ST SPIRAL**
+### **Bills of materials**
 
-I will complete 1 through 5 in the diagram to
+[Link](https://docs.google.com/spreadsheets/d/1I6Tjt6qgDweDd0C76cW3mJEWDHu6O1weU_6a_4BEpxI/edit?usp=sharing)
 
-- Generate condensed ocean water, and test with salinity sensor.  
-- One flow control at the exit.
+![](../images/fp/fp-04.png)
 
-**2ND SPIRAL**
 
-I will complete 6 through 9 in the diagram to
+## **What parts and systems will be made?**
 
-- Add flow control at the entrance.  
-- Add device to evaporate water from condensed salt water to make salt.  
-- Add control panel and LCD display.
 
 
-**3RD SPIRAL**
+## **What processes will be used?**
 
-3rd spiral will be dedicated to updating the over all appearance of this installation including 10 in the diagram.  
+- Welding
+    - Condense tower body
+- Additive fabrication processes:
+    -  3D printed peristaltic pump
+- Subtractive fabrication processes:
+    - CNC machine milled circuit board
+    - Laser cut MDF for control panel
+    - Laser cut plywood for trolley
+    - Vinyl cut sticker
+- Molding & Casting
+    - Button caps for control panel
+- Electronics design and production, embedded microcontroller interfacing and programming
+    - Main board produced using CNC machine
+    - Electronics on control board wired
+- System integration and packaging
+    - The whole system
 
 
 
@@ -115,9 +141,16 @@ I will complete 6 through 9 in the diagram to
 
 
 ## **What questions need to be answered?**
+
+- Does is make salt properly?
+- How to make sure it is a continuous process?
 - Will children actually enjoy it? - More hands-on content? More control parameters? More activities without changing the installation itself?  
 
 ## **How will it be evaluated?**
 
-Testing with children through organizing a workshop.
+Whether salt and pure water is produced. Later on, workshops will be planned for children.
 
+What did you design?
+What worked? What didn’t?
+How was it evaluated?
+What are the implications?
\ No newline at end of file

docs/projects/final-project.md

-# Final Project
-
-See how I [develop](http://fabacademy.org/2020/labs/kamakura/students/menghe-xu/projects/project-development/) my final project.