difference() {

union() {
translate( v=[-40/2,2,0 ] ) {
	cube( size=[40,17,42] );
}
scale( v=[1,29/35,1] ) {
	cylinder( r = 40/2, h=42);
}
}

union() {

translate( v=[-35/2,0,0 ] ) {
	cube( size=[35,15,42] );
}
scale( v=[1,29/35,1] ) {
	cylinder( r = 35/2, h=42);
}
}


}