SmallKat is a 16 DOF low cost, opensource, 3D printed quadrupedal platform with a full dynamics controller.Designed by Commonwealth Robotics in United States of America
The SmallKat project is a 16 DOF low cost, opensource, 3D printed quadrupedal platform designed and made by 2 WPI students (Keion Bisland and Xavier Little) along with framework code prepared by Ke...Read More…
The SmallKat project is a 16 DOF low cost, opensource, 3D printed quadrupedal platform designed and made by 2 WPI students (Keion Bisland and Xavier Little) along with framework code prepared by Kevin Harrington.
The intention of the platform was to make a fully open source dynamics quadruped for the education/research and high-end toy markets. Using hobby servos and common electronics allows the overall price point to remain very low in comparison to its competitors.
The combination of the controls software, BowlerStudio and the electronics make this platform uniquely capable. The controls electronics consists of a single ESP32, 16 servos, 3 switch mode BEC's and a BNO055 IMU. This platform streams sensor data up, and servo positions down, using the WiFi built into the ESP32. This configuration is easy to develop for because the code kinematics/walking gait code runs on a nearby PC. Kinematics and walking gait/body controllers can be swapped out on-the-fly without restarting SmallKats controller making development fast. Once algorithms are finalized and published to Git, they can be loaded by the second configuration and run in a tight real-time loop with the hardware.
16dof quadraped walking platform
IMU with integrated Dynamics controller
Perturbance compensation built in
Easy to assemble and calibrate kit
BowlerStudio models for simulation
All 3d printed plastic parts to make 1 SmallKat Grace
16 × MG92b Micro Servo
36 × M2 x 5mm
3 × 4Amp Switch Mode BEC
1 × Wii Classic Black
1 × Adafruit bno055 breakout
10 × M3 square nut
1 × 30 AWG Wire wrapping kit
1 × Turnigy 1000mah Battery
10 × M3 x 10mm
2 × ESP32 Dev Module
2 × ESP32 breakout board
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