$fn=64;

// --- Parameters ---
cable_diameter = 6.0;
clip_outer_diameter = 13.0;
banner_width = 30.0;
banner_length = 50.0;
banner_thickness = 2.0;
slit_width = 3.5;

module medieval_banner() {
    union() {
        // Main Banner Base (prints flat on the bed)
        difference() {
            translate([-banner_width/2, -banner_length, 0])
                cube([banner_width, banner_length + clip_outer_diameter, banner_thickness]);

            // Swallowtail cut at the bottom
            translate([0, -banner_length, banner_thickness/2])
                rotate([0, 0, 45])
                cube([25, 25, banner_thickness + 2], center=true);
        }

        // Cable Clip (integrated with the top of the banner)
        difference() {
            // Clip body
            translate([-banner_width/2, clip_outer_diameter/2, clip_outer_diameter/2])
                rotate([0, 90, 0])
                cylinder(h=banner_width, d=clip_outer_diameter);

            // Cable hole
            translate([-banner_width/2 - 1, clip_outer_diameter/2, clip_outer_diameter/2])
                rotate([0, 90, 0])
                cylinder(h=banner_width + 2, d=cable_diameter);

            // Tapered slit for cable insertion (faces UP during print, no overhangs)
            hull() {
                translate([-banner_width/2 - 1, clip_outer_diameter/2 - slit_width/2, clip_outer_diameter/2])
                    cube([banner_width + 2, slit_width, 0.1]);
                translate([-banner_width/2 - 1, clip_outer_diameter/2 - (slit_width+2)/2, clip_outer_diameter + 0.1])
                    cube([banner_width + 2, slit_width + 2, 0.1]);
            }
        }

        // Decorative Shield and Cross
        translate([0, -15, banner_thickness]) {
            shield_base();
            translate([0, 0, 1.5]) cross_decoration();
        }
    }
}

module shield_base() {
    hull() {
        // Top wide part of the shield
        translate([-10, -5, 0]) 
            cube([20, 15, 1.5]);
        // Bottom point of the shield
        translate([0, -15, 0]) 
            cylinder(d=3, h=1.5);
    }
}

module cross_decoration() {
    // Vertical bar
    translate([-2.5, -10, 0]) 
        cube([5, 17, 1.5]);
    // Horizontal bar
    translate([-7.5, -2, 0]) 
        cube([15, 5, 1.5]);
}

medieval_banner();