Stanislas Castella-Soeters

M1 Management de l'innovation de l'innovation : 2025 - 2026
stanislas.castella-soeters@etu.sorbonne-universite.fr

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Exercise 1 - Impression test : Marque page chat, (16 décembre 2025 - 9 janvier 2026)

Impression test - Marque page en 3D

 

Exercise 2 - Impression d'un objet plus complexe : Sifflet (

Exercise 3 - Impression d'un objet modélisé sur OpenScad : Maracas avec 4 billes (6 Février 2026)

/* [General Settings] */
// Select what to render
mode = "view_all"; // [view_all, print_half_1, print_half_2, print_tiny_spheres]

/* [Dimensions] */
/* [Détails de la maracas] */
// Longueur total de la maracas (mm)
rattle_length = 100; // [80:150]
// Diamètre de la sphère de la maracas (mm)
head_diameter = 45; // [30:80]
// Diamètre de la poignée (mm)
handle_diameter = 12; // [8:25]
// Épaisseur des parois du maracas (mm).
wall_thickness = 2.4; 

/* [Détails des quatres billes] */
// Number of tiny spheres
sphere_count = 4;
// Wall thickness for the tiny spheres
sphere_wall = 0.8; 
// Distance to move spheres away from the rattle body
sphere_distance_from_body = 20;

/* [Detail] */
// Smoothness of the curves
$fn = 100;

// --- Calculated Values ---
tiny_sphere_size = head_diameter / 5;

// --- Geometry Modules ---

module rattle_body() {
    // We group the geometry and move it UP so the bottom touches Z=0
    translate([0, 0, handle_diameter/2]) 
    union() {
        // 1. The Hollow Head
        translate([0, 0, rattle_length - (head_diameter/2)])
        difference() {
            sphere(d = head_diameter);
            sphere(d = head_diameter - (wall_thickness * 2));
        }
        
        // 2. The Handle
        cylinder_height = rattle_length - (head_diameter/2) + 2; 
        
        translate([0,0,0])
        union() {
            cylinder(h = cylinder_height, d = handle_diameter);
            // The bottom cap
            sphere(d = handle_diameter);
        }
    }
}

module tiny_spheres_set() {
    // Generate the row of spheres
    for (i = [0 : sphere_count-1]) {
        // X spacing: diameter + 5mm gap
        x_pos = i * (tiny_sphere_size + 5);
        
        // Z position: Lift up by radius so the bottom touches 0
        z_pos = tiny_sphere_size / 2;
        
        translate([x_pos, 0, z_pos])
        difference() {
            sphere(d = tiny_sphere_size);
            sphere(d = tiny_sphere_size - (sphere_wall * 2));
        }
    }
}

// --- Rendering Logic ---

if (mode == "view_all") {
    // 1. Render the Rattle (Base is at Z=0 inside the module)
    rattle_body();
    
    // 2. Render the Tiny Spheres
    // We move them to the right of the rattle head
    translate([head_diameter/2 + sphere_distance_from_body, 0, 0])
    tiny_spheres_set();
}

else if (mode == "print_half_1") {
    // Lay rattle flat for printing (Left Half)
    rotate([0, 90, 0])
    difference() {
        // We must undo the "standing" translation to rotate it correctly around center
        translate([0,0,-handle_diameter/2]) rattle_body();
        translate([-500, -1000, -500]) cube([1000, 2000, 1000]);
    }
}

else if (mode == "print_half_2") {
    // Lay rattle flat for printing (Right Half)
    rotate([0, -90, 0])
    difference() {
        translate([0,0,-handle_diameter/2]) rattle_body();
        translate([-500, -1000, -500]) cube([1000, 2000, 1000]);
    }
}

else if (mode == "print_tiny_spheres") {
    // Render the spheres sitting on the bed
    tiny_spheres_set();
}

 

Exercise 4 - Arduino