Week 1-2 (12 to 23 May 2025) – Brainstorming of project idea (Paper recycling machine) and exploration + research + experimentation of necessary methods for the idea, Searching for possible alternative project ideas
We made some experiments to recycle paper at our home and tested out several methods to dry the recycled materials, however, drying time proved to be a challenge for us – hence after exploration we discussed that Electrohydrostatic Drying (EHD) is a possible method to dry the paper in a short amount of time with least wastage of electrical energy. However, after discussion with the facilitators, it turned out to be a safety risk as the method involves use of a high voltage (20kV+). Therefore, we explored alternatives to our project idea. One exploration is a machine similar to a tourbillon; however, we decided to use the time-keeping mechanism of a tourbillon and decided to use in an application where precise time keeping is necessary – infusion / peristaltic pump for medical use.
Week 3 (26 to 30 May 2025) – Researching the materials to buy + Buying of Arduino Nano and relevant materials + Risk Assessment
We researched and discussed what mechanisms and materials would provide the outcome (pumping device) that we want, compiled them and bought the relevant materials at Sim Lim Tower. Throughout the week, we had to compile the job scope involved in this project, assess the possible injuries / harm / risks, and completed the Risk Assessment (RA).
Week 4 (2 to 6 June 2025) – Creating a basic circuitry and testing out the flow rate
We patched up a basic circuit to test the necessary electricity to be provided to the peristaltic pump, as well as to test the flow rate when the motor driver module is given the maximum input voltage (12V). More information was researched on the types of mechanisms to rotate the peristaltic pump / control the flow rate + provide the necessary mechanical input power to the electrical components. However, to reduce the flow rate to match medical applications, we also had to experiment 3D printed parts to connect to the pump and squeeze, but the exact mechanism used to pump out the liquid was not achieved as some of the pins of the 3D printed parts are fragile.
testing out the pumping, flow rate
Test with delay in Arduino code 3D printed part issues
Week 5 (16 to 20 June 2025) –