$fn = 360;
w = 3; // wall thickness
th = 6; // top height
i= 10 ; // inner radius aka "finger" size
o = i + 4;
h = o;
draft = 10;
badgeh = 4;
offs = tan(draft)* badgeh;

e=0.3;
m4r = 2 + e; // M4 radius
hr = 20/2 + e; // hole radius

echo(offs);

//ring

module woggle(){    
    difference(){
        x = 2;
        hull(){
            cylinder(0.1, o, o);
            translate([0,h/2,-o+x])
                rotate([90,0,0]){
                        cylinder(h, o, o);
                 }
        }
        translate([0,o+1,-o+x])
            rotate([90,0,0]){

                    cylinder(o*2+2,i,i);
            }
    }

    //top
    difference(){
        cylinder(th,o,o-offs);
        translate([0,0,3])
            cylinder(4,o-w-offs,o-w);
    }
    rotate([0,0,-90])
    translate([-1,0,3])
    //staff
    union(){
        sw = w * 0.6;
        sh = o * 0.6;
        rotate([0,90,0])
        cylinder(sh,sw,sw);

        rotate([0,-90,30])
        cylinder(sh*0.6,sw,sw);

        rotate([0,-90,-45])
        cylinder(sh*0.6,sw,sw);
    }    
}


module mold(){ // whole
    difference(){
        mt = 5; // mold thickness
        m4d = 44.5 ; // m4 distance
        wx = m4d + m4r + mt*2;
        wy = (o+mt)*2;
        mh = o*2+th + 2*mt + 3;
        c = -(o*2+th + 2*mt)/2-th;
        ph = o -- 2 + th;
        pc = ph/2;
        union(){
            translate([-wx/2,-wy/2,-mh/2-o+2+3])
                cube([wx,wy,mh]);

            // ears
            translate([28,0,-12])
            rotate([90,0,0])
            cylinder(wy,10,10,center=true);

            translate([-28,0,-12])
            rotate([90,0,0])
            cylinder(wy,10,10,center=true);
        }

        woggle();
        // m4 screws fittings
        translate([m4d/2,0,0])
            cylinder(mh*2,m4r,m4r,center = true);
        translate([-m4d/2,0,0])
            cylinder(mh*2,m4r,m4r,center = true);
        translate([0,0,-12])
        rotate([90,0,0])
        cylinder(mh*2,m4r,m4r,center = true);
        
        translate([28,0,-12])
        rotate([90,0,0])
        cylinder(mh*2,m4r,m4r,center = true);
        
        translate([-28,0,-12])
        rotate([90,0,0])
        cylinder(mh*2,m4r,m4r,center = true);
        
        translate([-14,0,-28])
        rotate([90,0,0])
        cylinder(mh*2,m4r,m4r,center = true);
        
        translate([14,0,-28])
        rotate([90,0,0])
        cylinder(mh*2,m4r,m4r,center = true);
        
        // air escapes
        aoff = o-offs-1.2;
        ar = 1.1;
        translate([aoff,0,0]) // manual adjusted
        cylinder(3*mt + 2, ar,ar);
        translate([-aoff,0,0]) // manual adjusted
        cylinder(3*mt + 2, ar, ar);
        //translate([-aoff,0,0]) // manual adjusted
        cylinder(3*mt + 2, ar, ar);
        // filler entrance
        translate([0,0,-35])
        cylinder(10,10,5);
    }
}
module top(){
    difference(){
        mold();
        mt = 5;
        translate([-50-1,-(o+mt)-1,-(o*2+th + 2*mt)])
            cube([100,(o+mt)*2+2,o*2+th + 2*mt]);
//        #translate([-(o+mt)-1,-(o+mt)-1,-(o*2+th + 2*mt)])
//            cube([(o+mt)*2+2,(o+mt)*2+2,o*2+th + 2*mt]);

    }
}

module bottom(){
    difference(){
        mold();
        mt = 5;
//        #translate([-(o+mt)-1,-(o+mt)-1,0])
//            cube([(o+mt)*2+2,(o+mt)*2+2,o*2+th + 2*mt]);
        translate([-50-1,-(o+mt)-1,0])
            cube([100,(o+mt)*2+2,o*2+th + 2*mt]);
    }
}

module bottom_left(){
    difference(){
       bottom();
            mt = 5;
    translate([-50-1,0,-(o*2+th + 2*mt)+1])
        cube([100,(o+mt)*2+2,o*2+th + 2*mt]);
    }
//    #translate([-(o+mt)-1,0,-(o*2+th + 2*mt)+1])
//        cube([(o+mt)*2+2,(o+mt)*2+2,o*2+th + 2*mt]);
//    }
}

module bottom_right(){
    difference(){
       bottom();
            mt = 5;
    translate([-50-1,-(o+mt)*2+-2,-(o*2+th + 2*mt)+1])
        cube([100,(o+mt)*2+2,o*2+th + 2*mt]);
    }
//    translate([-(o+mt)-1,-(o+mt)*2+-2,-(o*2+th + 2*mt)+1])
//        cube([(o+mt)*2+2,(o+mt)*2+2,o*2+th + 2*mt]);
//    }
}

//mold();

d = 25;
translate([0,0,15])
rotate([0,180,0])
    top();

//translate([0,d,19])
//rotate([90,0,0])
//bottom_left();
//
//translate([0,-d,19])
//rotate([-90,0,0])
//bottom_right();