==== Cubique Centré ====

[[wiki:projets:moleculesandcristaux|retour]]

<code>
a=20;
r1=6;
r2=2;

union() {
	translate([-a/2,-a/2,-a/2])
	sphere(r1);
	translate([-a/2,-a/2,a/2])
	sphere(r1);
	translate([-a/2,a/2,a/2])
	sphere(r1);
	translate([a/2,-a/2,-a/2])
	sphere(r1);
	translate([a/2,a/2,-a/2])
	sphere(r1);
	translate([a/2,-a/2,a/2])
	sphere(r1);
	translate([-a/2,a/2,-a/2])
	sphere(r1);
	translate([a/2,a/2,a/2])
	sphere(r1);

	translate([-a/2,-a/2,-a/2])
	cylinder(h=a, r=r2);
	translate([-a/2,-a/2,-a/2])
	rotate([0,90,0])
	cylinder(h=a, r=r2);
	translate([-a/2,-a/2,-a/2])
	rotate([-90,0,0])
	cylinder(h=a, r=r2);

	translate([a/2,a/2,a/2])
	rotate([0,-90,0])
	cylinder(h=a, r=r2);
	translate([a/2,a/2,a/2])
	rotate([90,0,0])
	cylinder(h=a, r=r2);
	translate([a/2,a/2,a/2])
	rotate([180,0,0])
	cylinder(h=a, r=r2);

	translate([-a/2,a/2,a/2])
	rotate([0,-180,0])
	cylinder(h=a, r=r2);
	translate([-a/2,a/2,a/2])
	rotate([90,0,0])
	cylinder(h=a, r=r2);
	translate([a/2,-a/2,a/2])
	rotate([0,180,0])
	cylinder(h=a, r=r2);
	translate([a/2,-a/2,a/2])
	rotate([0,-90,0])
	cylinder(h=a, r=r2);

	translate([a/2,a/2,-a/2])
	rotate([90,0,0])
	cylinder(h=a, r=r2);
	translate([a/2,a/2,-a/2])
	rotate([0,-90,0])
	cylinder(h=a, r=r2);

	sphere(r1);

	rotate([0,45,45]) cylinder(h=a*sqrt(2)/2,r=r2);
	rotate([0,-45,45]) cylinder(h=a*sqrt(2)/2,r=r2);
	rotate([0,-45,-45]) cylinder(h=a*sqrt(2)/2,r=r2);
	rotate([0,45,-45]) cylinder(h=a*sqrt(2)/2,r=r2);

	rotate([180,0,0])rotate([0,45,45]) cylinder(h=a);
	rotate([180,0,0]) rotate([0,-45,45]) cylinder(h=a*sqrt(2)/2,r=r2);
	rotate([180,0,0])	rotate([0,-45,-45]) cylinder(h=a*sqrt(2)/2,r=r2);
	rotate([180,0,0])	rotate([0,45,-45]) cylinder(h=a*sqrt(2)/2,r=r2);
}

</code>