What is an expensive limitation concerning 3D cutters?

The limitation regarding 3D cutters that is considered expensive involves their requirement for large amounts of power. Many industrial-grade 3D cutters, particularly those using advanced technologies such as laser or more robust cutting systems, consume a significant amount of electricity during operation. This results in high operational costs over time, especially when the machines are used continually in a production environment. An efficient power supply is crucial for sustaining high-performance capabilities, but it adds to the overall costs associated with running these machines.

The other potential limitations suggest aspects that either do not pose a high cost or mischaracterize the capabilities of 3D cutters. For instance, while some cutters may struggle with soft materials, many modern 3D cutting systems are designed to handle a wide variety of materials, which negates this as a serious concern. Similarly, stating that they are inexpensive to run contradicts the nature of their power requirements. Finally, the ability to operate without software would undermine the sophistication of 3D cutting technologies reliant on precise, computer-controlled designs. Thus, the power consumption remains the critical expense associated with these devices.