Hackaday Prize Semifinalist: Balancing Humanoid Robots

A few years after we all tire of our remote control BB-8 droids we’ll all have personal human robots designed specifically for human interaction. We’re not there yet, but [Poh Hou Shun] out of Singapore is working on a robot like this for the Hackaday Prize. It’s called OSCAR, the Omni Service Cooperative Assistance Robot.

As with any robotics platform, the use case defines the drive system; you’ll want knobby tires or treads if you’re building a sumo bot, and a strange articulating suspension if you’re driving over alien terrain. OSCAR is built for humans, and this means a humanoid chassis is required. Legs, however, aren’t. Instead of a complex system of motors and joints, OSCAR is balancing on a ball. No, it won’t go up stairs, but neither will many other robots either.

So far, [Poh Hou Shun] has built the basics of a drive system, and it’s surprisingly similar to the BB-8 droids we’re still not tired of yet. On the bottom is a large ball held in place with a spring-loaded retainer. On top of this are three stepper motors, each holding an omni wheel. It will work, there’s no doubt about that, and with the right humanoid chassis, some sensors, and a lot of software, this could be a very cool social robot.

The 2015 Hackaday Prize is sponsored by:

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