$fn = 64;

// Parameters
strip_length = 100;
strip_width = 15;
strip_thickness = 5;

// Magnet dimensions (slightly oversized for press-fit/glue clearance)
magnet_diameter = 6.2; 
magnet_thickness = 3.2;
num_magnets = 4;

// Calculated spacing
magnet_spacing = strip_length / num_magnets;
start_offset = magnet_spacing / 2;

difference() {
    // Main strip body
    translate([-strip_length/2, -strip_width/2, 0])
        cube([strip_length, strip_width, strip_thickness]);

    // Embedded magnet cutouts (from the bottom surface)
    for (i = [0 : num_magnets - 1]) {
        x_pos = -strip_length/2 + start_offset + (i * magnet_spacing);
        
        // Cutout cylinder extended slightly below 0 for clean manifold subtraction
        translate([x_pos, 0, -0.01])
            cylinder(d=magnet_diameter, h=magnet_thickness + 0.01);
    }
}