Load obj file

1

I dont get an error but nothing loads.
I just get a blank screen and I have really struggled to find an
example for loading an obj file.
I am using flashbuilder4 AS3 project.

private function initAway():void
    {
        _camera =  new Camera3D({zoom:20, focus:30, x:100, y:50, z:-500});
        
        _scene = new Scene3D();
        
    //    _light = new DirectionalLight3D();
    //    _scene.addChild( _light );
        
        _view = new View3D( { x:stage.stageWidth / 2, y:stage.stageHeight / 2, scene:_scene, camera:_camera, renderer:Renderer.CORRECT_Z_ORDER } );
        addChild( _view );
        
        _loader = new Loader3D();
    _loader = Obj.load( "./m4_sherman.obj", { scaling:10, bothsides:true } );

        _loader.addOnSuccess( onObjLoad );
    }
    
    private function onObjLoad( e:Loader3DEvent ):void
    {
        _mesh = e.loader.handle;
        _mesh.scaleX = -1;
            
        _scene.addChild( _mesh );
        
        addEventListener( Event.ENTER_FRAME, onRender );
    }
    
    private function onRender( e:Event ):void
    {
        _mesh.rotationY += 1;
        
        _view.render();
    }
    
}

}