On a machine tool in which a first element intended to support a machining tool, and a second element intended to support a workpiece, are mutually movable, a special test arrangement may be placed between the first element and the second element. The electronic apparatus include: a memory unit which downloads a CAS client from a server and stores the CAS client, a communication unit which receives a message to change a storage location of the CAS client from the server, and a controller which changes a storage location of the CAS client and stores the storage location according to the message received from the server. A floating isolator body including an elastomeric damping element is floatably interfaced with the flexible diaphragm of the fluid isolator assembly to isolate vibration. A smaller motor includes a pinion secured to the spindle and engaged with a gear, and a weight is secured to the gear and coupled to the cylinder.