the base that the kinect attach to do not securely fit into the mount , i.e. , it wobble around a lot and once the kinect be add to it . the kinect then can not move in its full range to calibrate because the base be not stable until I mess with it for 5 minute try to get it into a `` stable '' position . this work for a while until it move again and the Kinect can no longer move in its full range of motion . irritating and just plain junky . maybe mine be a dud .