$fn = 64;

// --- Parametric Variables ---
base_width = 25;         // Width of the adhesive mounting base
base_length = 15;        // Length of the clip (extrusion depth)
base_thickness = 2;      // Thickness of the flat base

cable_diameter = 10;     // Inner diameter (optimized for 7-12mm cables)
wall_thickness = 2.5;    // Thickness of the holding arms
opening_width = 7;       // Top opening for snap-fitting the cable

// --- Calculated Variables ---
outer_diameter = cable_diameter + (wall_thickness * 2);
center_y = base_thickness + wall_thickness + (cable_diameter / 2) - 1;

// --- 3D Model ---
// Rotate to lay flat on the build plate (Z=0)
rotate([90, 0, 0])
linear_extrude(height = base_length, center = true) {
    difference() {
        // Main solid body
        union() {
            // Rectangular mounting base
            translate([-base_width / 2, 0])
                square([base_width, base_thickness]);

            // Smooth sloped transition from base to the clip ring
            hull() {
                translate([-(base_width / 2) + 1.5, 0])
                    square([base_width - 3, base_thickness]);
                translate([0, center_y])
                    circle(d = outer_diameter);
            }
        }

        // Inner cutout for the cable
        translate([0, center_y])
            circle(d = cable_diameter);

        // Flared top opening for easy cable insertion
        translate([0, center_y])
            polygon([
                [-opening_width / 2, cable_diameter / 4],
                [opening_width / 2, cable_diameter / 4],
                [(opening_width / 2) + 3, outer_diameter],
                [-(opening_width / 2) - 3, outer_diameter]
            ]);
    }
}