3d printing Tryout & Comfirmation Mechanics - Week 7

Project Development

3d printing

In Week 7, I used 3d printing to print the cover. The purpose of my doing this is to make myself familiar with 3d printing. Because in previous semesters, I only have little knowledge of 3d printing. 

Besides, to start tryouts and failed multiple times in the beginning. Below is my tryout process.


In modeling stage



In the preview 3d printing stage



3d printing


After the 3D printing trial, I realise the wearable device's depth is limited. Furthermore, I made the model too thin so that it would be simple to break out. Here, I discovered how to make the model more substantial and in-depth.




Searching for better quality mechanics

Due to the low voltage and bad quality of the first tryout Arduino, I find more mechanics references for better performance.


The video showcase this Arduino model APR33a3 Voice playback provides high-quality recording and playback with 11 minutes of audio at an 8 kHz sampling rate with 16-bit resolution. The aPR33A series C2.x is specially designed for the simple key trigger, user can record and playback the message average for 1, 2, 4, or 8 voice message(s) by the switch, it is suitable in the simple interface or need to limit the length of a single message.

The model is what I actually looking for. Unfortunately, this model is not available in Malaysia. Therefore, I have to research again.

I look for lecturers to ask for technical consultation. Fortunately, there is an alternative model that can also be performing well and it is available in Malaysia.


A high-quality voice recorder and saving more time for recording. 

Confirmation Mechanics

The following mechanics will be what I use in the following progress. The model is more supported with better quality of sound and higher voltage which gives more time to record.




References List

Mechanics research

Circuits Bazaar (2018). How to install and use the APR33A3 Voice Recorder 8 channel module. [online] www.youtube.com. Available at: https://www.youtube.com/watch?v=qPbFjYfeznU&list=PLsFD8E7-nwKSNndna3L8qHSkokb3vEaZU&index=34&t=563s [Accessed 3 Jan. 2023].

GreatScott! (2019). Make your own Spy Bug (Arduino Voice Recorder). [online] www.youtube.com. Available at: https://www.youtube.com/watch?v=7Hn4UFi9wvs [Accessed 3 Jan. 2023].

Gupta, S. (2021). Simple Arduino Voice Recorder for Spy Bug Voice Recording. [online] Circuit Digest. Available at: https://circuitdigest.com/microcontroller-projects/simple-arduino-voice-recorder-for-spy-bug-voice-recording [Accessed 3 Jan. 2023].



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