iRobot Roomba

The Roomba, created by iRobot, is one of the first true robots to be commercially successful on a large scale. It is also one of the first home robots to have a use beyond education or entertainment. Basically, it is the first successful, useful personal robot and, at this point, it is the closest thing to Rosy the Robot that we have available.

The Roomba is a robotic vacuum cleaner that is able to automatically clean a room on a schedule and then return to its docking station to charge for the next time. Fundamentally it is very simple. Bounce off the walls while vacuuming the floor. This simplicity made the Roomba a robot that could be produced cheaply.

One of the major design aspects of the Roomba is its single purpose functionality. It can only vacuum floors. While un-incredible, this design is what made it possible for the robot to exist because it was a function that was well within the state of the art.

Robots are not smart. There are only a few in the world that can tell the difference between an apple and an orange and then grab one or the other, and those robots cost hundreds of thousands of dollars. For this reason single purpose function is the best way to design a useful robot. iRobot has adopted this approach with Roomba and a few of its other products. Have one robot, perform one task. So you have a swarm of robots doing the tasks that Rosy the Robot did alone. But because there are multiple robots they can be kept individually simple and cheap. Essentially the Roomba doesn't bite off more than it can chew.

The Roomba is also a good looking product. Curves are always good practice, but that shape also is useful for navigating around furniture and in tight places. The disk never gets caught on anything. The curves also make the robot appear "cute." There are people that have adopted the Roomba instead of a dog.

Overall, the Roomba is a well designed product because it had a single purpose in mind that it does very well and is able to make itself useful to the user without excessive cost.

Baxter the Robot

Baxter is a new generation in industrial robots created by Rethink Robotics. He is a machine that can be trained by the average person to perform mundane tasks like assembly line work.

One of the reasons Baxter is so great is because he is a personal and safe kind of industrial robot. He is designed to literally work alongside his human coworkers. He has eyes that look in the direction where he is going to move to give visual queues to bystanders. He is able to feel obstructions in his path so that he doesn't plow anyone down with his arms. But most importantly, Baxter is able to be trained by the average person. In order to teach Baxter a task all anyone has to do is guide his arms in the general direction that they need to move and show him what he is grabbing. From there, Baxter perfects the motion and makes it smooth and efficient.

While that is all great, Baxter has one more benefit, cost. Baxter only costs $25,000. This is a fraction of a standard industrial robot arm without programming. Baxter literally costs less than the wages of a worker that would do the same task. This is a first. Robots are normally very expensive because their mechanics are very expensive so only large corporation could afford them because of their long-term efficiency. The folks at Rethink Robotics have made Baxter affordable to the average, small manufacturer.

And one last thing. While Baxter is cheaper than the average line worker he is not meant to replace them. He is meant to elevate them to his supervisor. So now the person doesn't have to do the repetitive monotonous work but instead makes sure that Baxter does it well.

Baxter was designed with the end user and the industry in mind. And his contribution will no doubt be a significant one.

You can see Baxter in action in the video below

HEXBUG Aquabots.

The HEXBUG Aquabots are another well designed robotic creature that are very similar to the HEXBUG Nano. This is so because they essentially a very simple mechanism, but in their environment they appear to behave just like their biological counterpart.

Whenever you watch goldfish in the bowl you see them nose along the edges and once in awhile they will just decide to do something half interesting. The Aquabots are the same. Most of the time they just flick their tales and nudge their way around the bowl. But they are designed to, every once in awhile, change direction or dive. This is the aspect that gives them the appearance of being alive.

These are a great design because they could replace a kid's first goldfish that will eventually die. Or they can be the colorful display in the office. And they don't soil their tank or ever get hungry. But most of all, they are, through very simple and clever design,  a mechanical facsimile for the real thing. Not complicated but appearing so.

If these principles, which HEXBUG uses, were applied in other product design it could go a very long way. All too often concepts are over-complicated, thus taking away from their function or affordability.