$fn = 64;

// Parametric dimensions
base_radius = 50;
base_thickness = 8;
pillar_dist = 30; // Distance from center (total span is 60mm)
front_height = 85;
back_height = 65;

// Calculate the tilt angle to align the cups perfectly
tilt_angle = atan2(front_height - back_height, pillar_dist * 2);

// Module for the U-shaped cradles
module u_cup(length, width, base_height, inner_r) {
    total_height = base_height + inner_r;
    difference() {
        // Cup body with rounded bottom edges
        translate([-length/2, 0, 0])
            hull() {
                translate([0, -width/2 + 2, 2])
                    rotate([0, 90, 0]) cylinder(r=2, h=length);
                translate([0, width/2 - 2, 2])
                    rotate([0, 90, 0]) cylinder(r=2, h=length);
                translate([0, -width/2, total_height - 1])
                    cube([length, width, 1]);
            }

        // Main airbrush body cutout
        translate([-length/2 - 1, 0, total_height])
            rotate([0, 90, 0])
            cylinder(r=inner_r, h=length + 2);

        // Top opening to create the U-shape
        translate([-length/2 - 1, -inner_r, total_height])
            cube([length + 2, inner_r * 2, inner_r + 2]);
    }
}

// Main Assembly
union() {
    // Stable Base
    cylinder(r=base_radius, h=base_thickness - 3);
    translate([0, 0, base_thickness - 3])
        cylinder(r1=base_radius, r2=base_radius - 5, h=3);

    // Front Support Pillar (Taller, holds main body)
    translate([-pillar_dist, 0, base_thickness])
        cylinder(r1=12, r2=9, h=front_height - base_thickness);

    // Back Support Pillar (Shorter, holds tail)
    translate([pillar_dist, 0, base_thickness])
        cylinder(r1=12, r2=9, h=back_height - base_thickness);

    // Front Cradle
    translate([-pillar_dist, 0, front_height])
        rotate([0, tilt_angle, 0])
        translate([0, 0, -5]) // Sink into the pillar for a strong joint
        u_cup(length=20, width=26, base_height=10, inner_r=9.5);

    // Back Cradle
    translate([pillar_dist, 0, back_height])
        rotate([0, tilt_angle, 0])
        translate([0, 0, -5])
        u_cup(length=20, width=20, base_height=10, inner_r=7.5);
}