Robotic arm platforms
Overview
State DOF, reach goals, payload intent, and whether this was coursework, research, or a personal build. Mention control stack only if you own that part too.
Mechanical architecture
Joint ordering, belt vs direct drive, bearing choices, and how you routed cables. If you have a Jacobian or workspace sketch, describe it in words and add the figure to the gallery.
Validation
What you tested: repeatability, deflection under load, or pick-and-place demos. Honest failure modes read well.