createFn	= function(ctor, a0, a1, a2, a3, a4, a5, a6, a7){
		console.assert(arguments.length <= 9);
		//console.log("createFn", arguments)
		return new ctor(a0,a1,a2,a3,a4,a5,a6,a7);
	}
Create a cube

@returns {tQuery.Object3D} a tQuery.Object3D containing it