I’m currently researching embodied intelligence and evaluating robotic arms for humanoid applications.

From what I know, a 6-axis arm is generally simpler and may be sufficient for many tasks, while a 7-axis arm adds an extra degree of freedom that can offer more human-like movement and greater flexibility.

For those working in robotics:

• When does the seventh axis provide a meaningful advantage?
• Does the additional flexibility justify the added cost and control complexity?
• Which configuration is better suited to unstructured, real-world environments?

We’d be interested to hear about your experience with both designs.