Video: New palm-sized robot with 8 smart actuators can walk, trot, and jump

An open-source quadruped robot named Q8botOne aims to provide an affordable, fully assembled robotic platform for hobbyists, researchers, and developers. Building on the original Q8bot’s low-cost, agile design, Q8botOne comes fully assembled and ready to use right out of the box.
The robot now packs programmable actuators into a palm-sized platform, delivering dynamic mobility in a robot compact enough to roam across a desktop.
According to its maker, the robot will soon be available through a Crowd Supply campaign, making quadruped robotics more accessible to a wider audience.
Agile quadruped arrives
Q8botOne is an upcoming open-source quadruped robot developed by Eric Wu to make advanced legged robotics more accessible to hobbyists, students, researchers, and developers.
Despite its small size, Q8botOne is capable of performing a range of dynamic movements typically associated with much larger and more expensive quadruped robots. The robot can walk, trot, and jump, demonstrating agile locomotion that makes it suitable for robotics research, educational projects, and experimentation with autonomous behaviors. By eliminating the need for users to source parts and assemble the robot themselves, Q8botOne significantly lowers the barrier to entry for anyone interested in legged robotics, Hackster reported.
One of the robot’s most distinctive features is its highly integrated design. Unlike many small quadrupeds that rely on numerous wires routed throughout the body, Q8botOne incorporates its electronics directly onto a custom central printed circuit board. This streamlined architecture reduces cable clutter, improves reliability by minimizing potential failure points, lowers overall weight, and simplifies maintenance and troubleshooting. The result is a cleaner and more refined appearance that sets the platform apart from many traditional DIY robotics projects.
The robot’s locomotion system is powered by eight DYNAMIXEL XL-series smart actuators. These actuators drive lightweight parallel-linkage legs constructed from Multi Jet Fusion (MJF) 3D-printed components and precision ball-bearing joints. This combination provides a balance of strength, durability, and low weight, enabling smooth, accurate movement. The mechanical design has been optimized to support dynamic maneuvers while maintaining structural efficiency, according to Crowdsupply.
At the heart of the system is an ESP32-C3-MINI-N4 microcontroller that manages onboard processing and robot control. Power is supplied by a rechargeable lithium-ion battery equipped with integrated protection circuitry to enhance operational safety and battery management. The robot is designed to provide a convenient user experience, allowing owners to begin experimenting immediately after powering it on.
Open quadruped platform
Each Q8botOne package will include a custom wireless controller dongle that comes pre-paired with the robot.
The controller features a joystick, multiple buttons, and USB-C connectivity for both power and communication. When connected to a computer, the controller provides access to software tools that enable users to configure, monitor, and control the robot in greater detail. This setup allows beginners to quickly get started while also offering advanced functionality for experienced developers, reports Crowdsupply.
Expansion capabilities are another key aspect of the platform. A Qwiic-compatible connector enables easy integration of additional sensors from manufacturers such as SparkFun and Adafruit without requiring complex wiring. The robot also includes a UART interface that supports co-processors, such as a Raspberry Pi. This interface can supply up to 5V at 3A, allowing users to add more powerful computing hardware for applications involving computer vision, AI, autonomous navigation, or custom robotics research.
Continuing the philosophy of the original Q8bot project, Q8botOne will remain fully open source. Mechanical designs are being created in Onshape, and firmware, hardware schematics, and related design files are expected to be released through the ZeroWireRobotics GitHub organization following the completion of the Crowd Supply campaign.
According to experts, the commitment to open-source development will allow users to study, modify, and extend the platform, fostering a community-driven ecosystem around the robot and enabling innovations in affordable quadruped robotics.
