Crazy, right? But what makes it crazy is that this incredibly dynamic little robot is landing on this teeny tiny foot. In the video, you can see Salto landing on its essentially one-dimensional bar foot, but according to the ICRA paper it’s also capable of landing on just a point foot, although its thrusters do struggle a bit to keep it upright. Most of the work on the landing is done by the robot while it’s in mid air, using the same hardware from the previous iteration—namely, a spinning inertial tail plus a couple of propeller thrusters for multi-axis stability.
As impressive as the landing is, it’s just half of what’s new here. As you saw in the video, the other thing is the better control that Salto now has over where it’s going, enabling it to target its jumps to specific places. This capability derives from the combination of precise leaping to targets and balanced landing; they allow Salto to have much finer control of its next jump since it gets a chance to land and accurately aim for its target, as opposed to when it’s bouncing. The robot has been able to reduce the standard deviation from its landing target from 9 centimeters all the way down to 1.6 cm, meaning that it can now handle small targets like tree branches—we can’t wait to see that in action.
Admit it - you want to read about hopping robots! In his 1954 novel Lucky Star and the Oceans of Venus, Isaac Asimov knew you would, but they didn't exist yet. So, he writes about the fictional hoppers:
Hoppers are probably the most grotesque forms of transportation ever invented. They consist of a curved body, just large enough to hold a man at the controls. There was a four-bladed rotor above and a single metal leg, rubber-tipped, below. It looked like some giant wading bird gone to sleep with one leg folded under its body. Lucky touched the leap knob and the hopper's leg retracted. Its body sank till it was scarcely seven feet from the ground while the leg moved up into the hollow tube that pierced the hopper just behind the control panel. The leg was released at the moment of maximum retraction with a loud click, and the hopper sprang thirty feet into the air...
STILL not ready to stop reading about hopping robots? Well, jump right into this list:
Boy Makes Biomimetic Turtle Robot
't came out into plain view. Darkington glimpsed a slim body and six short legs of articulated dull metal.'
Origin F1 Humanoid Robot's Facial Skin
'I could look down at that face of carefully molded synthetic rubber, tinted the exact shade of the doctor's living flesh.' - Rog Philips, 1950.
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Boy Makes Biomimetic Turtle Robot
't came out into plain view. Darkington glimpsed a slim body and six short legs of articulated dull metal.'
Elon Musk Wants Data Centers In Space
'Internally it’s made up of millions of components, but the most important ones are the thinking and memory parts of the Mind proper.'
Origin F1 Humanoid Robot's Facial Skin
'I could look down at that face of carefully molded synthetic rubber, tinted the exact shade of the doctor's living flesh.'