Jessica Rocchiccioli¶

I am a Italian high school student in Erasmus on Bordeaux for one month.

MY STUDIES¶

I frequent the last year of a technical institute for Mechanics and Mechatronics "ITT F. Vecchiacchi"
I can use 3D CAD, CAM, design programs and I am able to work with industrial machinery like 3D printer, CNC lathe and milling machine.

FIRST DAY IN FABLAB¶

On my first day at FabLab Cohabit, I designed a small object using FreeCAD and printed it to test the printers.
Link to the file : dado.FCStd

Afterwards, I also created a keychain to be cut and engraved using the laser cutter."
Link to the file : dance.svg

FASTENERS FOR PANELS¶

I created a locking mechanism for the panels of the 'INCLUENDO' project, an escape game themed around invisible disabilities.

1. CONTEXT AND OBJECTIVE
During the collaboration at Fab Lab Coh@bit, Pierre Grange Praderas asked to redesign the panel locking systems for the "INCLUEDO" project, an escape room centered on the theme of invisible disabilities. This intervention became necessary as previously tested solutions failed to ensure proper operation.

2. PRELIMINARY ANALYSIS AND DIMENSIONAL SURVEY
The work began with an on-site analysis to check panel layout, attachment methods, and the reasons behind the failure of previous attempts. Subsequently, using a caliper, the necessary dimensions were measured and a manual sketch was drawn to define the interlocking principle.

3. PROTOTYPE DEVELOPMENT
The entire prototyping process took place over 3 days. The 3D modeling was carried out using FreeCAD software, and the parts were manufactured using PLA 3D printing:

1st Prototype : Created to evaluate the overall fit, tolerances, and the mating of the upper section with the profile.
Link to the file : blocco pannelli prova 1.FCStd
2nd Prototype : Developed by reducing the upper interlocking part and extending the panel support base. Testing revealed an excessive reduction of the joint, preventing part insertion and panel adhesion.
Link to the file : blocco pannelli prototipo 2.FCStd
3rd Prototype : Corrected in the upper section and modified by adding a lateral incline. The part adhered to the panel, but still presented insertion difficulties into the profile slot.
Link to the file : blocco pannelli prototipo 3.FCStd
4th Prototype : Refined the incline, ensuring proper insertion into the profile. Structural details were added, such as a rounded support surface on the panel side and a central ridge along the edges to increase the mechanical strength of the PLA. However, during removal from the profile, improper stress caused it to break.
Link to the file : blocco pannelli prototipo 4.FCStd
5th Prototype (Final Version) : Applied the final dimensional corrections (a few millimeters removed from the side and added to the bottom), achieving the final, perfectly functional component.
Link to the file : blocco pannelli prototipo 5.FCStd

4. CONCLUSION AND KEY LEARNINGS
The development of the component highlighted the effectiveness of the rapid prototyping process. The core of the activity lay in the systematic analysis of the critical issues identified in each prototype, which provided the necessary insights to correct errors and drive improvements in subsequent iterations, ultimately leading to the final result.