milapenrith

[milapenrith]

11 March

Adhering the potentiometer to the middle frame, ensuring the coding and manual/automatic switch is working

Testing out photography locations, setting up studio lighting

[milapenrith]

10 March

Testing fan power, noting the success of the felt adhering to the exterior ache simply with the suction of the 3 10in fans.

Filter box/ frame was created - will need refining in future iterations

[milapenrith]

9 March

Fine sanding using 400 grit

Rubbed in a layer of wax coating

[milapenrith]

8 + 9 March

Dry fitting the pieces together

Cut the felt to size and added nickel plated buttons

[milapenrith]

6 March

Red oak wood was CNC’d by Tom Coates at University of Oregon

We spent the day sanding and fine tuning the final cuts

[milapenrith]

6 March

Sheet metal cut at FM Metals in Springfield

Sandblasted and Powder Coated at Karam Concepts in Eugene

White powdercoat is cured at 200 degrees Celsius

[milapenrith]

24 Feb

Carbon filters came in

6 March

Refining the MDF fan board befor CNC milling

[milapenrith]

23 Feb

Inspired by a felt room divider, we tested pleating the felt which not only generates a larger surface area for particles to adhere to, but also allows the user to stretch it out for easy cleaning

However we might keep it flat for further ease of use, and less material.

[milapenrith]

23 Feb

Testing the PM2.5 sensor using “impure air”/ smoke

Having problems with the potentiometer- when turning the fans down too quickly, the fans power off and we have to wait a while for it to continue. Maybe time for a new power source?

[milapenrith]

22 Feb

Testing the air speed first with a small computer fan, and then with the final three fans after many hours of code work

[milapenrith]

19 Feb

Creating the final prototype of our final design using laser cut cardboard

After having constructed it, we decided to reduce the size for the final

Fans fit beautifully into what will be a CNC milled MDF board placed at the back.

Filter cafe needs refining- more air tight

[milapenrith]

17 Feb

Further Arduino testing using an FSR

[milapenrith]

12 + 15th Feb

Refining the final design

- 3 10in fans will be placed behind HEPA and carbon filters

-still need to figure out the design and material of the pre filter, as well as the material to use. Maybe Felt?

[milapenrith]

12 Feb

Product take apart - analyzing how the traditional fan connects to a motor, the directionality of airflow, and how the number of parts

[milapenrith]

10 Feb

- Taught the class how to wire and code an LED to change colour whenever the servo motor rotates 90 degrees

- Tested using buttons and a flex sensor to control a piezo sound generator

[milapenrith]

4 Feb

Refined our CODs, key concepts, how the air will interact with the final product and the interior filters, the types of filters, predicted design sketches, the location of the products application

The arduino will be connected to a PM2.5 sensor to record the amount of participle matter in the surrounding air, a rotary encoder which will activate the manual rotary dial for the user to adjust fan speed, and a DC motor to power the fans

[milapenrith]

22 Jan

More FSR and LED Arduino testing

Added a rotary encoder and a servo motor