12/24/2025 10:21 AM - Planning

I first looked at some sensors to measure the reed with. Firstly, a load cell, for measuring weight. A piezoelectric disk to measure vibrations, induced by a few small vibration motors. Finally, a laser distance sensor for measuring the thickness of the reed along its length.

The parts list I've gathered so far:
-Push Button
-Arduino Nano (would rather use something else but it's only $2)
-TOF050C Laser TOF Sensor
-SW-18010P Piezoelectric Disk
-Generic Load Cell
-Vibration Motors
-USB C Cable
-Thumbscrew (for clamping)

12/24/2025 10:33 AM - Found all aliexpress links

For future reference
Vibration Motors - https://www.aliexpress.us/item/3256807364342330.html
Load Cell and Amplifier - https://www.aliexpress.us/item/3256804105432748.html
Laser TOF Sensors - https://www.aliexpress.us/item/3256805965091584.html?
Vibration Sensors - https://www.aliexpress.us/item/3256805863472019.html
Arduino Nano - https://www.aliexpress.us/item/3256807289041722.html?
Buttons - https://www.aliexpress.us/item/3256808452988888.html
MOSFETs - https://www.aliexpress.us/item/3256809747005336.html
Jumper Wires - https://www.aliexpress.us/item/3256805770305412.html
10k and 1M Resistors - https://www.aliexpress.us/item/3256806240725825.html
USB-C Cable - https://www.aliexpress.us/item/3256807311849860.html

12/24/2025 11 AM - Made wiring diagram

I made the wiring diagram on Excalidraw for the device. A PCB doesn't seem worth it in this case as it is not that complex but should still work for research purposes.

12/24/2025 5:14 PM - Made weight/vibration measurement

Made the holder for the reed on the vibration measurement disk and the load cell for weight measurement.
This should be good to hold the main contact measurements still.

12/24/2025 5:57 PM - Finished main chamber

Added in the laser scanners and finished the overall main reed scanning tray. All sensors are now in place and the model is almost fully functional to be used.

12/24/2025 7 PM - Finished CAD

-Added in the vibration motor clamp/probe
-Finished and polished chamber up
-Added amplifier + arduino
-Did some price reduction

Just needs to be packaged and put in the repo now before submission, and hopefully the total cost is under $50.

12/24/2025 8 PM - Updated model + code

Firstly I added in the button because I forgot about it, and that would be bad because I would lowk like to control the device. Secondly, I generated the code and made some tweaks.