/** 
	Button Generator by guru

	http://www.local-guru.net/
*/

r1 = 15;
r2 = 13;
r3 = 6;
r4 = 1.4;

h1 = 2;
h2 = 1.9;

count = 4;



difference() {
	cylinder( r = r1, h = h1, $fn=80 );
	translate( v=[0,0,h2] ) {
		cylinder( r=r2, h=(h1-h2+0.1), $fn=80 );
	}	

	for( i = [0:count] ) {
		rotate( i*360/count, [0,0,1]) {
			translate( v=[ r3,0,0] ) {
				cylinder( r = r4, h = h1, $fn=8 ); 
			}
			translate( v=[r3, 0.04,0]) {
				cube( size=[r1-r3,0.1,h1] );
			}
		}
	}
}