// Furby face in modular synth
$fn = 100;           // rendering segements
ball_diam = 22.4;   // eye diameter
ball_wall = 3;    // eyeball wall thickness
pupillary = 30;     // distance between pupils
axisdist = 22;      // distance between two shafts
angle = 0.2;        // angle of section between eyes and beak
lidangle = -30;      // opening of eyelids: 0..70
beakangle = 30;     // opening of the beak: 0..30
clearance = 0.2;    // joint clearance for print in place, for face only
innershape();
module cast(){
difference(){
    cube([40,40,16]);
    translate([20,20,2])rotate([0,0,45])cylinder(d1=sqrt(2)*32,d2=sqrt(2)*36,h=14.01,$fn=4);//
}
difference(){
    translate([20,20,2])sphere(d = ball_diam+0.4);
    translate([0,0,-20])cube([40,40,20]);    
}
translate([20,20,0])hull(){cylinder(d=14,h=11.0);translate([0,0,7.2])sphere(d=14);}
}
module innershape(){
difference(){
eyeball();
    translate([0,0,7])cylinder(d1=4,d2=20,h=3);
    translate([0,0,9])cylinder(d=14,h=8.8);
}
}
//color("black")

module eyeball(){
    difference(){
        union(){
            translate([0, 0, 0])sphere(d = ball_diam);
            translate([-12, 0, 0])rotate([0, 90, 0])cylinder(d = 5.6, h = 3);
        }

        translate([-15, -15, -11.8 + ball_diam / 2 - 30 - 2])cube([30, 30, 30]);
        translate([-15, 0, 0])rotate([0, 90, 0])cylinder(d = 2+clearance, h = 30);
        difference(){
            translate([0, 0, 0])sphere(d = ball_diam - ball_wall);
            translate([-15, -15, 6])cube([30, 30, 30]);
        }
        translate([-15, -1, -4])cube([10, 2, 4]);
    }
}

module eyeball_cutout(){
    difference(){
        translate([0, 0, 0])sphere(d = ball_diam - ball_wall);
        translate([-15, -15, 6])cube([30, 30, 30]);
    }
}