Electric motor scaling laws and inertia in robot actuators

This is the beginning of a series of posts about robot actuation. The intent here is not to prescribe some specific architecture or solution, but to talk about the fundamentals, with as little bias as I can manage. Hopefully you learn something. Here&rsquo;s an ostensibly straightforward question for anyone who&rsquo;s spent time thinking about robot actuators. Take a look at the three cartoon…