This telescoping ballbar provides a simple, rapid check of a CNC machine tool's positioning performance to recognised international standards (e.g. ISO, ASME etc) allowing users to benchmark and track the performance of their machines and to quickly diagnose problems that may require maintenance and the error sources that produce them.  

 Regular ballbar testing of machine tools helps to 

• ensure accurate parts, first time, from CNC machines
• reduce machine down-time, scrap and inspection costs
• demonstrate compliance with machine performance and quality management standards
• implement fact based predictive maintenance