Project Logs

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• Final Feedback and Reflections

  Naël • 05/22/2025 at 09:20 • 0 comments

  After presenting our project, we received several pieces of feedback to help us reflect on our design process. One major comment was that the part we chose to 3D print was too complex for what was needed. Instead, using a laser cutter to shape the piece directly from a block of plastic would have been more appropriate and efficient for this kind of object.
  

  The overall project was considered interesting and relevant. However, it was also suggested that we could have organized the team differently by working in two pairs. This would have allowed us to develop multiple prototype variations and explore more design possibilities in parallel.

• Final Adjustments Before 3D

  Naël • 05/18/2025 at 12:44 • 0 comments

  This week, we focused on modeling the bottom part (the box) of the egg cutter in 3D. The objective was to create a functional design while minimizing the amount of plastic used before sending it for printing.

  We carefully adjusted the shape to ensure stability, proper fit with the other parts, and material efficiency. This step brings us closer to having a fully operational and optimized prototype.

• 3D Modeling and Material Change for a Cleaner Design

  Naël • 05/18/2025 at 12:35 • 0 comments

  This week, we focused on creating 3D models of the new parts to be printed and tested with the updated pusher mechanism. The goal was to fix the issue identified last time, where the egg was pressed on a flat surface instead of being pushed between the blades.
  

  While we originally planned to build the final prototype in wood, we decided to use plastic instead. This material will make the object easier to clean and more hygienic for food-related use. The 3D modeling allowed us to precisely adjust the shapes and add the grooves needed for the pusher to fit between the blades and complete the cut.

• Prototype Testing

  Naël • 05/18/2025 at 12:12 • 0 comments

  This week, we finished assembling the cardboard prototype that had been laser-cut the week before. We made the final adjustments to get closer to the design we had in mind, and then tested the prototype using a real egg.
  
  

  During the test, we realized that the cutting mechanism didn’t work as expected. The egg was being pressed onto a flat surface, which prevented the blades from fully slicing through. We understood that the pusher needs to be redesigned to include grooves that fit between the blades, allowing it to push the egg through the gaps and achieve a clean cut.

  This issue led us to plan a new prototype focused specifically on solving this problem. We will work on that in the upcoming session.

• Laser-Cut Cardboard Prototype and Assembly

  Naël • 05/18/2025 at 10:43 • 0 comments

  This week, our initial goal was to begin creating the wooden prototype. However, before moving on to wood, we focused on testing the assembly of different parts using cardboard. We used the website boxes.py to explore various interlocking systems and identify one that suited our design.

  A key challenge was to create a functional rotation mechanism for the pusher. To tackle this, we used a laser cutter to precisely cut the parts in cardboard, which allowed us to assemble and test the structure with more precision.

  By the end of the session, we had a functional cardboard prototype ready. Next week, we plan to test it with a real egg to evaluate how well it works before starting the wooden version.

• Functional Cardboard Model with Integrated Blades and Pusher System

  Naël • 05/18/2025 at 10:19 • 0 comments

  This week, we built a new and improved cardboard prototype before moving on to the wooden version. Unlike the previous attempts, this one includes side barriers to better hold the egg in place and prevent it from slipping. We also completely redesigned the pusher system to make it more efficient and easier to use.
  

  The blades were no longer just placed on top, they were integrated directly into the structure, making the design more stable and realistic. We used cardboard and paper fasteners  to create articulated parts and secure different elements together. This allowed us to test movement and positioning more accurately.
  

  The prototype was adjusted several times to balance practicality, safety, and aesthetics, and it now better reflects Yousra’s needs. The next step will be to test this version and begin working on the wooden prototype.

• Validation and First Prototype Testing

  Naël • 05/18/2025 at 09:55 • 0 comments

  Last time, we imagined a box system with blades located at the top. These blades would be surrounded by small walls to prevent the egg from slipping out when placed. Once pressure is applied, the cut egg would fall into the box, which also serves as a container. This idea was validated by Yousra, as it seemed safer and more practical for her.
  

  To begin testing, we modeled and 3D-printed a first version of the box on Fusion 360, based on the shape of the original egg cutter. This early prototype allowed us to see what worked and what didn’t. We quickly noticed that the box was too tall, the blades weren’t fixed to the structure, and the egg could fall off the blades before being cut.

  Next week, we plan to improve the design by adding small side walls in cardboard to better hold the egg in place, and to explore a solution to securely attach the blades to the box, still using cardboard instead of 3D printing for this stage.

• First idea

  Naël • 05/18/2025 at 09:21 • 0 comments

  On the first day, we observed that the egg cutter was too dangerous to use, especially for someone like Yousra who can’t get too close to the blades. We wanted to find a way to make it safer while keeping the same basic function.

  So we decided to recreate the shape of the egg cutter and design a box that could fit perfectly around it. This box would act as a protective layer, reducing the risk of contact with the blades.

  We started by making a mind map to organize our ideas and then created a first version of the protective box using cardboard. 

  The goal was to allow Yousra to press only on the cardboard parts, without having to touch the blades directly.

  For now, it’s just a rough prototype, but it helps us visualize how we could make the final object safer and more adapted to her needs.

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