$fn = 64;

// --- Parameters ---
cable_diameter = 18;
number_of_clips = 4;
wall_thickness = 3;
strip_depth = 15;        // Width of the strip along the cable
opening_width = 13.5;    // Snap gap (smaller than cable diameter for snap fit)
flare_extra = 4;         // How much wider the opening gets at the top for easy insertion

// Mounting parameters
flange_length = 15;
screw_hole_diameter = 4;
screw_offset = 7.5;      // Distance from edge to screw hole center
base_height = 4;

// Calculated values
spacing = cable_diameter + wall_thickness * 2 + 2;
total_length = number_of_clips * spacing + 2 * flange_length;
outer_diameter = cable_diameter + wall_thickness * 2;

module cable_clip_strip() {
    difference() {
        // Main solid body
        union() {
            // Base strip
            translate([0, -strip_depth/2, 0])
                cube([total_length, strip_depth, base_height]);

            // Clip bodies
            for(i = [0 : number_of_clips - 1]) {
                cx = flange_length + spacing/2 + i * spacing;
                cz = base_height + cable_diameter/2;

                // Outer cylindrical shell
                translate([cx, 0, cz])
                    rotate([90, 0, 0])
                        cylinder(h=strip_depth, d=outer_diameter, center=true);

                // Solid block connecting outer cylinder to the base
                translate([cx - outer_diameter/2, -strip_depth/2, 0])
                    cube([outer_diameter, strip_depth, cz]);
            }
        }

        // Cutouts for cables and screws
        // Screw holes
        translate([screw_offset, 0, -1])
            cylinder(h=base_height + 2, d=screw_hole_diameter);
        translate([total_length - screw_offset, 0, -1])
            cylinder(h=base_height + 2, d=screw_hole_diameter);

        // Screw countersinks
        translate([screw_offset, 0, base_height - 2])
            cylinder(h=2.1, d1=screw_hole_diameter, d2=screw_hole_diameter + 4.2);
        translate([total_length - screw_offset, 0, base_height - 2])
            cylinder(h=2.1, d1=screw_hole_diameter, d2=screw_hole_diameter + 4.2);

        // Cable cutouts
        for(i = [0 : number_of_clips - 1]) {
            cx = flange_length + spacing/2 + i * spacing;
            cz = base_height + cable_diameter/2;

            // Inner cable hole
            translate([cx, 0, cz])
                rotate([90, 0, 0])
                    cylinder(h=strip_depth + 2, d=cable_diameter, center=true);

            // Snap opening at the top
            translate([cx, 0, cz + cable_diameter/2])
                hull() {
                    // Bottom of the snap cut (blends into the circular hole)
                    translate([0, 0, -cable_diameter/4])
                        cube([opening_width, strip_depth + 2, 0.1], center=true);
                    // Top of the snap cut (flared for easier cable insertion)
                    translate([0, 0, wall_thickness + 1])
                        cube([opening_width + flare_extra, strip_depth + 2, 0.1], center=true);
                }
        }
    }
}

cable_clip_strip();