Děkujeme za názor a tady máte klíčenku

nazor.scad

// For more information about this code (in Czech) see
// https://www.altair.blog/2019/11/layered-text

/* [Base] */
base_color = "#333333";
base_paddding = 2;
base_height = 2;

/* [Text layers] */
layer_heights = [1, 1];
layer_text_strings = [ "NÁZOR", "DÍKY ZA"];
layer_text_sizes = [20, 15];
layer_colors = [ "#FF6600", "#EEEEEE"];
font_name = "Arial Rounded MT Bold";

/* [Hanging hole] */
hole_position = [49, -4];
hole_diameter = 5;

// Create base
color(base_color) linear_extrude(base_height) difference() {
    offset(base_paddding) union() {
        for(i = [0:len(layer_heights) - 1]) text(text = layer_text_strings[i], font = font_name, size = layer_text_sizes[i], halign = "center", valign = "center");
        if(hole_diameter > 0) translate(hole_position) circle(d = hole_diameter, $fn = 32);
    }
    if(hole_diameter > 0) translate(hole_position) circle(d = hole_diameter, $fn = 32);
}

// Create text layers
translate([0, 0, base_height]) for(i = [0:len(layer_heights) - 1]) {
    lh = csum(layer_heights, i);
    color(layer_colors[i]) linear_extrude(lh) text(text = layer_text_strings[i], font = font_name, size = layer_text_sizes[i], halign = "center", valign = "center");
}

// Helper function to compute total layer height
function csum(items, i, val = 0, n = 0) = n >= i ? val + items[n] : csum(items, i, val + items[n], n + 1);

nazor.stl