What is a key benefit of using milling for PCB production?

The key benefit of using milling for PCB production is that it allows for immediate PCB production. Milling is a subtractive manufacturing process that quickly removes material from a substrate to create the desired circuit patterns. This process is particularly advantageous for rapid prototyping and small production runs, enabling designers to create functional PCBs on demand without the need for long lead times.

While other methods like chemical etching may have lower costs for large production runs, they typically involve more complex setups and longer turnaround times. Milling, on the other hand, provides the flexibility to produce PCBs immediately, which is essential in scenarios where speed and iteration are critical, such as in research and development. Thus, the immediate PCB production capability stands out as a significant benefit of using milling in this context.