Damaris Cotto

Assignment:

• Propose a final project that integrates the range of units covered.

For this assignment I tried to describe how my final project is aplicable and what do I need to do to make it work successfully.

 

Description of the project
My Final project consist in collect rain water to filter in a pipe with cotton, sand, rocks and activated carbon to be purified and make it potable. The purified water is held in a container that measures the water level with an horizontal level sensor and its pH level with a Ph electrode.
When the main container reaches the desire water level, the horizontal level sensor closes and then the pH electrode will measure and display the pH level in the LCD screen. If the water is 7.0 pH it runs to the blue container which is for drinkable water, if the pH level is not 7,0 the water is still potable but not drinkable, so it runs to the green container for water to domestic use like wash the dishes, take a shower or water plants. The potable water pH level is between 6,5 and 8,5.

What will it do?
The whole project starts in collecting the rainwater and finishes in extract the purified water of the blue or green containers by user, but the Fab Academy project scope starts on the step when the electro valve 1 opens to let the filtered water runs to the main container and the sensor 1 turns on indicating the water level, and I'll finish on the step when the electro vales 1 or 2 opens to let the pH measured water runs to the blue or green containers and the water level sensor 2 or 3 turns on. I wont concentrate on how to collect or filter the water nor how to collect the water in the end of the process.

Who has done what beforehand?
The project I found could help on mine is AQUAPION~RS from Guillaume Teyssieé, class 2016 student who developed a very interesting aquaponic system.

What materials and components will be required?
Where will they come from?
What processes will be used?
For my project I’ll use some electronic components such as a pH electrode sensor to measure the pH level, water electro valves which dispose the water depending on the process step and as they work with 12V I need to use coupling circuits because the rest of the components use 5V to operate.
I also use water level sensors, a reset button and an LCD to let the user know in which step the process is. For the electronics I’ll design the board based on fabduino.
I also need plastic containers for the water, hoses and their couplings printed on a 3D printer using PLA material in different colors depending on the step in the process.
The holding structure is going to be made in MDF and cut in a laser cut CO2 machine.

How much will it cost?
My budget is about $100 including all the electronic components and materials. I’m still working on my BOM and trying to figure it out the best way possible.

What parts and systems will be made?
The principal system is the electronic operation. For the hose connectors I’ll use Rhino 5 to design them and then I’ll print them in a 3D printer. For the holding structure I’ll use Rhino 5 and Illustrator CC to design it and I’ll cut the parts with a laser cutting machine.

What tasks need to be completed?
I have to finish the schematic and the board design to make the first proof and look how it works, how do I have to change and assembly all the necessary parts of the project.

What questions need to be answered?
At the end, the question to answer is how to get this project to manage the entire flow of water in a house, solving the problem of scarcity in certain areas.

How will it be evaluated?
It will be evaluated starting on the step where the filtered water comes into the main container and finishing on the pH measured water flows to one of the two containers. This is a lot of potential project to be developed forward.

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