opn_h = 48;
opn_w = 11.2;

d = 3;

btn_s = 6;
btn_dist = 34;
btn_d = 3.2;

h = btn_dist+btn_s+1.4+2;

hub = 1.5;

l_d = 24;

module ring(dia, thickness, w) {
    translate([0, w, 0]) rotate ([90, 0, 0])
        difference() {
            cylinder(w, dia, dia, $fn=128);
            translate([0, 0, -0.1])
                cylinder(w+0.2, dia-thickness, dia-thickness, $fn=128);
        }
}

rotate([90, 0, 0]) {

/* Base */
cube([d, btn_s, h]);
/* Top clamp */
translate([d, 0, h-1.4])
    cube([btn_d, btn_s, 1.4]);
/* Bottom clamp */
translate([d, 0, h-btn_s-(1.4*2)-0.4])
    cube([btn_d, btn_s, 1.4]);
/*
    {
        translate([d, -0.2, btn_dist-0.2])
            cube([btn_s, btn_s+0.4, btn_s+0.4]);
        translate([d, -0.1, 0])
            cube([btn_d+0.1, btn_s+0.2, (btn_dist-(8+hub/2)+btn_s/2)]);
    }
}
*/
/* Foot */
difference() {
    rotate([0, 30, 0])
        cube([20, btn_s, d]);
    translate([16, -0.1, -10])
        cube([btn_s, btn_s+0.2, btn_s]);
}

/* Side hold */
/*
translate([0, 0, btn_dist+((btn_s-3.7)/2)])
    cube([d, btn_s+2, 3.7]);
*/

/* Ledge */
/*
translate([0, 0, h-1.4])
    cube([d+btn_d+hub+1.4, btn_s, 1.4]);
*/
translate([d+btn_d+hub, 0, h-24])
    intersection() {
        translate([24, 0, 24])
            ring(24, 1.4, btn_s);
        cube([12, 24, 24]);
    }

translate([(d+btn_d+hub+1.4)/2, 0, h])
intersection() {
    ring((d+btn_d+hub+1.4)/2, 1.4, btn_s);
    translate([-10, 0, 0])
        cube([20, 10, 10]);
}


/*
translate([4+d+btn_d+hub+0.2, 0, btn_dist+btn_s/2])
    ring(4, 0.6, btn_s);

translate([d+btn_d, 0, btn_dist-(8+hub/2)+btn_s/2])
intersection() {
    translate([0, 0, 4+hub])
        ring(4+hub, 0.6, btn_s);
    cube([6, 6, 4+hub]);
}
*/

}