$fn = 64;

// Parametric Variables
num_wrenches = 10;
base_height = 25;
floor_thickness = 3;
slot_angle = 60;

// SAE Wrench Sizes (1/4" to 3/4")
labels = ["1/4", "5/16", "11/32", "3/8", "7/16", "1/2", "9/16", "5/8", "11/16", "3/4"];

// Functions for spacing and slot widths to accommodate increasing wrench sizes
function x_pos(i) = 10 + (i * 12) + (i * i * 1.35);
function slot_w(i) = 4.0 + (i * 0.6);

module sae_wrench_holder() {
    difference() {
        // Main Body
        hull() {
            translate([0, 0, 0]) 
                cylinder(r=25, h=base_height);
            translate([240, 0, 0]) 
                cylinder(r=35, h=base_height);
        }
        
        // Angled Slots for Wrench Handles
        for(i = [0 : num_wrenches - 1]) {
            translate([x_pos(i), 0, floor_thickness + (base_height / 2)])
                rotate([0, 0, slot_angle])
                    cube([140, slot_w(i), base_height], center=true);
        }
        
        // Engraved Size Labels
        for(i = [0 : num_wrenches - 1]) {
            // Position text on the ridge between slots, near the front edge
            translate([x_pos(i), 0, base_height - 1])
                rotate([0, 0, slot_angle])
                    translate([-12, -slot_w(i)/2 - 4.5, 0])
                        linear_extrude(2)
                            text(
                                labels[i], 
                                size=4.5, 
                                halign="center", 
                                valign="center", 
                                font="Liberation Sans:style=Bold"
                            );
        }
    }
}

// Render the model
sae_wrench_holder();