• Log 08/04/2025

    imanolink • 04/08/2025 at 09:51 • 0 comments

    Last week, we didn’t take any notes because an external guest came to talk about Croatia (we’re not really sure why, but that’s what happened). He was very friendly and gave us a website where we could find free gear models. That’s how we ended the session.

    We started this session (08/04) by telling Vladimir that we didn’t know how to design the gear mechanism for our project. He told us to start a new sketch for it and to come back to him once we had something to show.

    After going back to Vladimir to ask if our sketch was correct, he explained to us how gears work using a website called https://geargenerator.com. So, we created two diagrams on this site: one with an internal gear and another with only regular gears.

    The main problem with this was that we needed to center the gear that will be connected to the hour hand. We spent a lot of time trying to solve this centering issue. In the end, we managed to get this result:

    Image

  • Log of 18/03

    imanolink • 04/01/2025 at 09:32 • 0 comments

    This week, we started by designing a 3D model of our project using Autodesk Fusion. This model represents the clock itself, with all the necessary dimensions.

    However, during a review with our teacher, he pointed out that our project did not fully comply with one of the requirements in the brief: it lacked a key mechanical aspect — the use of gears.

    Following this feedback, we decided to integrate a gear system into our design to better meet the expectations of the project. We planned a first set of gears to drive the minute hand, and a second gear system positioned around the edge of the clock to rotate another hand that indicates the hours.

  • Log of 11/03

    imanolink • 03/18/2025 at 09:01 • 0 comments

    Today, we took a step back to imagine the project by making sketches and thinking about its functionalities. Then, we started building the cardboard prototype.

    When we began working on the cardboard prototype, we encountered a major problem. We couldn't place all the hands on the same vertical axis because they would inevitably touch at some point. Additionally, it was impossible to position all the hands on the same rotation axis, as we couldn’t just stack the servomotors on top of each other or attach multiple hands to the same servomotor (otherwise, they would all rotate simultaneously, which wouldn't be useful).

    However, we came up with an idea! Instead of using three hands, we decided to keep only one—the minute hand. As for the hour indication, we thought of making the RGB LEDs on the numbers change color (to red) when an hour transitions to the next.

    We’ve also start to make the arduino code this week but we ended by only making the connection of the arduino card. 

  • Log of 04/03/2025

    imanolink • 03/04/2025 at 10:00 • 0 comments

    Today, we continued what we started last week, which was visualizing our project idea. We created sketches (including dimensions and project details) and a Fusion 360 representation to model the project in 3D.

    We also created the Hackday project page (where I am writing this log), where I documented all the logs and uploaded the images.

    Additionally, we considered making a cardboard prototype of the project, but we didn't have enough time to complete it. We will do it next time to kick-start the technical aspect of the project.

    (I have uploaded the sketch and the Fusion 360 file in the files and images section.)

  • Log of 25/02/2025

    imanolink • 03/04/2025 at 08:50 • 0 comments

    During this session, we mainly thought about which project we were going to work on. After some reflection, we decided to create a clock with multiple features:

    • 3 hands (hour, minute, second)
    • LEDs on each hour, with three different colors for each hand (RGB)
    • One hand/color takes priority over the others (Hour > Minute > Second)
    • Thermometer, Hygrometer, Luxmeter…
    • Chime every hour

    We also considered how we could logistically carry out this project, and before we knew it, the session was over.