Low Volume Reproduction
3D printing is perfect for low volume reproduction for machine parts and often there will be major benefits that come from using 3D printed replacement parts.
Gears For A Packing Machine
Aluminum gears that were used on a production line would break during operation causing machine damage. As a result the machine was out of production for 3 to 6 months (serviced abroad). Such a long down time generated high costs and late deliveries.
Thermoplastic gears were used that didn't cause machine damage if there was a break down replacing the aluminium gears.