$fn = 64;

/*
 * Reusable Bin Label Clip
 * Designed to be printed on its side (as oriented) without supports.
 * This maximizes layer strength so the clip acts as a strong spring.
 */

// --- Parameters ---
clip_width     = 60.0;  // Width of the label area (extrusion length)
label_height   = 25.0;  // Height of the flat label face
bin_thickness  = 3.0;   // Thickness of the bin edge it attaches to
wall_thickness = 2.0;   // Thickness of the plastic walls
clip_depth     = 20.0;  // How deep the rear clip mechanism goes into the bin

module label_clip() {
    // Derived values to create a spring-fit profile with a lead-in flare
    slot_top = bin_thickness + 0.5;
    slot_bot = bin_thickness - 0.2;
    lip_size = 0.6;
    flare    = 1.2;
    bot_y    = label_height - clip_depth;
    c        = 1.0; // Chamfer size for outer edges

    // 2D Profile coordinates
    points = [
        [c, 0],                                                          // Bottom left chamfer
        [wall_thickness, 0],                                             // Bottom inner (front face)
        [wall_thickness, label_height - wall_thickness],                 // Top inner left
        [wall_thickness + slot_top, label_height - wall_thickness],      // Top inner right
        [wall_thickness + slot_bot, bot_y + 4],                          // Start of grip lip
        [wall_thickness + slot_bot - lip_size, bot_y + 1.5],             // Peak of grip lip
        [wall_thickness + slot_bot + flare, bot_y],                      // Flared entry inner
        [wall_thickness + slot_bot + flare + wall_thickness - c, bot_y], // Flared outer bottom
        [wall_thickness + slot_bot + flare + wall_thickness, bot_y + c], // Flared outer right
        [wall_thickness + slot_top + wall_thickness, label_height - c],  // Top right outer
        [wall_thickness + slot_top + wall_thickness - c, label_height],  // Top right top
        [c, label_height],                                               // Top left top
        [0, label_height - c],                                           // Top left outer
        [0, c]                                                           // Bottom left outer
    ];

    // Extrude the profile (lays flat on the XY plane for optimal printing)
    linear_extrude(height = clip_width, center = true) {
        polygon(points);
    }
}

// Generate the model
label_clip();