Limitations of Numeric Control
In spite of many advantages mentioned above, there are a few limitations that one should consider while making a changeover to numerical control.
1. The NC machine tool is much more expensive compared to conventional machine tool. This calls for a very high initial investment that needs to be appropriately justified.
2. Skill of the people required to operate a NC machine is generally high in view of the complex and sophisticated technology involved. This calls for a shift in the quality and education of the people involved in the operation of the NC machine tools.
3. As NC is a complex and sophisticated technology, it also requires higher investments in support technologies, such like maintenance.