cnc milling machine DISADVANTAGES

1. Less workers are required to operate CNC machines compared to manually operated machines. Investment in CNC machines can lead to unemployment.

2. Many countries no longer teach pupils / students how to use manually operated lathes / milling machines etc... Pupils / students no longer develop the detailed skills required by engineers of the past. These include mathematical and engineering skills.

3. CNC machines are more expensive than manually operated machines, although costs are slowly coming down.

4. The CNC machine operator only needs basic training and skills, enough to supervise several machines. In years gone by, engineers needed years of training to operate centre lathes, milling machines and other manually operated machines. This means many of the old skills are been lost.

source: http://www.technologystudent.com/cam/cncman4.htm