Week 16: Applications and implications
assignment
Propose a final project masterpiece that integrates the range of units covered,
answering:
What will it do?
Who's done what beforehand?
What will you design?
What materials and components will be used?
Where will come from?
How much will they cost?
What parts and systems will be made?
What processes will be used?
What questions need to be answered?
How will it be evaluated?
Your project should incorporate 2D and 3D design,
additive and subtractive fabrication processes,
electronics design and production,
embedded microcontroller interfacing and programming,
system integration and packaging
Where possible, you should make rather than buy
the parts of your project
Projects can be separate or joint, but need to show individual
mastery of the skills, and be independently operable
What will it do?
My proposed project is a guitar that has the capacity to record a priece of music and play it back on loop.
The user of the guitar may choose to play another live piece of music. Then it will sound like two pieces of music are playing at the same time.
Who's done what beforehand?
In the fab academy, I saw people who did the boom box, another one who did “Legos” for Sound
Physical Modular Sound Blocks for sound and music and many other projects.
However none of them resembled mine exactly.
On the market you may find guitar pedals with loops. However they are costly and it is a separate tool away from the guitar. MINE WILL BE INTEGRATED INSIDE A GUITAR.
What will you design?
1. I will design the electronic circuit for the whole process of recording, writing on an SD card, playing back on a loop.
2. I will design the guitar frame: Acoustic version
3. Integrate everything together.
What materials and components will be used?
here is the list of material i will use:
Not to mention the PLA that will be used in the printing of a case.
the MEMS microphone will be found from this supplier: https://www.faranux.com/product/i2s-interface-inmp441-mems-high-precision-low-power-ultra-small-volume-for-esp32/
The audio amplifier will be found here: https://www.faranux.com/product/tda2030a-amplifier-board-module-voice-amplifier-single-power-supply/
The toggle switch: https://www.faranux.com/product/3-pin-blue-toggle-switch/
Other electronics components mentioned will be found here: nyerekatech.com
Where will come from?
Most of these will be purchased by the fablab.
If there is additional cost, i will cover.
All items can be found on local market. I have links to the shops where i can find them.
Items like hardwood boards will be procured by me going to the market place and picking them.
How much will they cost?
Items mentioned in the colored table have a cost estimation of around 220USD
What parts and systems will be made?
As i mentioned:
The electornic part
the guitar frame
What processes will be used?
For the electronic part, I will program the SP32 to do tasks then connect the microphone and the speaker with its amplifier.
For the frame i will use the ShopBot to cut parts that i can.
Originally i had thought to make a mold and cast the tuning knobs but I was unable to find the right material for that.
Therefore i will buy the ready-made knobs, the strings and other things i will not be able to print.
Then i will assemble and test.
What questions need to be answered?
1. How to record sound/music and write it on an SD card?
2. How to immediately playback sound/ music?
3. Can the system be attached together?
4. Can the sound come out of the case?
How will it be evaluated?
My project should be evaluated on following criteria:
1. Is the sound coming out the one we recorded?
2. Does the system look like a guitar?
3. was it made by using computer controlled machines?