Cassie is a dynamic bipedal robot that can walk and run in a fashion similar to that of humans or animals. It can handle diverse and complex terrain, making it perfect for search and rescue, or package delivery.
- Agility Robotics and Oregon State University
- United States 🇺🇸
- United States 🇺🇸
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Did You Know?
Cassie is named after the Cassowary, a flightless bird with a similar leg shape.
There's a Cassie in Tallahassee (the state capital of Florida), it's called Tallahassee Cassie.
Agility Robotics employees often take Cassie for walks outside the office.
- Strong and durable, able to handle experiments outdoors without a safety tether. Extremely energy efficient, runs for many hours on a single battery charge.
- 115 cm | 45.3 in
- 40 cm | 15.75 in
- 55 cm | 21.6 in
- 31 kg | 12.2 lb
- 5 km/h | 3.1 mph (Walking speed using prototype stepping control)
- MEMS IMU, absolute and incremental encoders.
- Brushless DC motors, with custom-designed transmissions
- 20.5 Ah battery at 48V, with estimated 5 hours operation in mixed-use (100 W power draw while standing, ~300 W power draw during walking). Ability for much higher power output for a jump or running.
- Main real-time control computer with Intel Atom, custom microcontroller boards at each limb. Secondary Intel Nuc I5 for customer use, including any non-real-time processes.
- MathWorks Simulink real-time for control computer. Any software allowed on secondary computer.
- DEGREES OF FREEDOM (DOF)
- 10 (Legs: 5 DoF x 2)
- Aluminum; thermoformed polycarbonate variants; carbon fiber composite components.
- $300,000 (exact amount depends on application and quantity)
Founded in 2015, Agility Robotics develops highly capable bipedal robots for applications that include logistics, telepresence, automated inspection, entertainment, and research. The company's goal is to build legged machines that can go anywhere a person can go. Its first robot, released in 2016, is a bipedal platform called Cassie, a dynamic walking robot that could traverse rough terrain and step over obstacles. Unveiled in 2019, Digit is Agility's second robot. Its legs are similar to Cassie's, but Digit is equipped with a torso full of sensors as well as a pair of arms, used for balance, mobility, and manipulation.