Bouton d'essoreuse à salade

color([0, 1, 1]) difference() {
    // bouton extérieur
    color([1,1,0], alpha=0.5) translate([0,0,0]) union() {
        #cylinder( h=0.8, r1=1.5, r2=1, $fn=72);
        #translate([0,0,-3]) cylinder(h=3, r1=1, r2=1.5, $fn=72);
    }
 
    // intérieur
    union() {
        color([0, 1, 0]) translate([0, 0, -4.2]) cylinder( h=3, r=0.35, $fn=72);
        color([0, 0, 1]) translate([0, 0, -1.2]) cylinder( h=1.2, r=0.45, $fn=72);
        color([0, 0, 1]) translate([0, 0,  0]) sphere(0.45, $fn=72 );
    }
}