3d_printer_z_backlash_calibration

repetition_thickness = 0.3;
end_height = 10;

start_height = 1;
edge_length = 10;
number_of_models = end_height / repetition_thickness;
items_per_row = round(sqrt(number_of_models));
clarence = 0.5;
letter_size = edge_length / 2.5;
font = "Stencil";
overlap_value = 0.01;

module main() {
    l = edge_length;
    n = number_of_models;
    c = clarence;
    o = overlap_value;
    r = items_per_row;
    echo(str(0 % 5));
    for (i = [0:n - 1]) {
        dx = (i % r);
        dy = floor(i / r);
        t = repetition_thickness * (i + 1);
        translate([
            -(r * (l + c) / 2) + (dx * (l + c)),
            -(ceil(n / r) * (l + c) / 2) + (dy * (l + c))
        ]) {
            difference() {
                cube([ l, l, t ]);
                translate([ l / 2, l / 2, -o ]) {
                    linear_extrude(height = t + (o * 2)) {
                        text(
                            str(t), size = letter_size, font = font,
                            halign = "center", valign = "center", $fn = 64);
                    }
                }
            }
        }
    }
}

main();