Measured with a Bluetooth GPS device, the upgraded Roomba achieved an impressive 36 km/h (22 MPH). The original Ni-MH cells were replaced with a pair of 3-cell lithium polymer batteries for more power. New 3D-printed wheels completed the drivetrain. 3D-printed mounts were then used to install the new motors in the existing chassis. Brushed DC 775 motors were selected for the drivetrain, and these run through a 3:1 planetary reduction gearbox. After stripping down a used Roomba, he set about carving out space in the chassis for upgraded hardware. It also has to maintain its vacuum functionality.
The build must look like a Roomba, use two drive wheels, and one motor per wheel. Regardless, set about building the world’s fastest Roomba for his own personal satisfaction.įor this challenge, set his own rules. Few people complain they’re not fast enough in a straight line. A lot of people complain that Roombas are unreliable, poor at their job, or just plain annoying.
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