$fn = 64;

// --- Parameters ---
cup_height = 45;             // Total height of the cup
top_diameter = 80;           // Outer diameter at the top
bottom_diameter = 60;        // Outer diameter at the bottom
wall_thickness = 2.4;        // Thickness of the walls
bottom_thickness = 3.0;      // Thickness of the base
scoop_radius = 8.0;          // Inner rounding radius for easy token removal

// --- Calculated Radii ---
r_top = top_diameter / 2;
r_bottom = bottom_diameter / 2;
r_inner_top = r_top - wall_thickness;
r_inner_bottom = r_bottom - wall_thickness;

// --- Model ---
difference() {
    // Main outer shell
    cylinder(h=cup_height, r1=r_bottom, r2=r_top);

    // Hollow interior
    hull() {
        // Extended top opening to ensure a clean manifold cut
        translate([0, 0, cup_height - 0.1])
            cylinder(h=1.2, r=r_inner_top + 0.1);

        // Rounded inner bottom edge (torus) for easy scooping
        translate([0, 0, bottom_thickness + scoop_radius])
            rotate_extrude()
                translate([r_inner_bottom - scoop_radius, 0, 0])
                    circle(r=scoop_radius);

        // Flat inner bottom center
        translate([0, 0, bottom_thickness])
            cylinder(h=0.1, r=r_inner_bottom - scoop_radius);
    }
}