Quaddle
An open-source quadruped robot dog kit released by Petoi, featuring four servos and weighing 170 grams. It supports tool-free assembly, includes over 90 built-in movements, and is programmable via graphical block coding, Python, and Arduino C++. The kit targets robotics education and DIY enthusiasts.
Timeline (last 90 days)
Quaddle is an open-source quadruped robot dog kit driven by only 4 servos.
Quaddle requires no soldering and no screws on the body (only 4 screws to secure the legs), and the entire process from components to a walking robot can be completed within 20 minutes.
The Quaddle weighs 170 grams and has a body length of 11 centimeters.
Quaddle's walking speed is approximately 1.8 body lengths per second, sliding can reach 3 body lengths per second, and it has over 90 built-in actions, including continuous rolling, three-legged walking, stair climbing, and inverted walking.
Quaddle has designed an upgrade path of Builder (basic version) → Buddy → Scout, where the Scout version adds a 5th servo to drive a radar-like head structure for environmental scanning.
The Quaddle platform supports Arduino sensor expansion, with an optional Raspberry Pi Zero as the computing core and an optional AI vision module.
Quaddle provides a complete programming progression path from graphical block-based programming and Python and MicroPython to Arduino C++.
Quaddle features a hand-guided teaching function: using feedback servos, users can directly manipulate the joints by hand to demonstrate new movements, which the robot dog records and reproduces without any coding required.
Quaddle's firmware is based on the OpenCat framework and will be open-sourced, and its URDF model has been published on HuggingFace.
Some of Quaddle's parts will be open-sourced with 3D printing files available, but certain critical structural components must be injection-molded due to motion load requirements, making it a semi-open-source hardware product.
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All Facts (11)
Quaddle is an open-source quadruped robot dog kit driven by only 4 servos.
50%UnverifiedQuaddle requires no soldering and no screws on the body (only 4 screws to secure the legs), and the entire process from components to a walking robot can be completed within 20 minutes.
50%UnverifiedThe Quaddle weighs 170 grams and has a body length of 11 centimeters.
50%UnverifiedQuaddle's walking speed is approximately 1.8 body lengths per second, sliding can reach 3 body lengths per second, and it has over 90 built-in actions, including continuous rolling, three-legged walking, stair climbing, and inverted walking.
50%UnverifiedQuaddle has designed an upgrade path of Builder (basic version) → Buddy → Scout, where the Scout version adds a 5th servo to drive a radar-like head structure for environmental scanning.
50%UnverifiedThe Quaddle platform supports Arduino sensor expansion, with an optional Raspberry Pi Zero as the computing core and an optional AI vision module.
50%UnverifiedQuaddle provides a complete programming progression path from graphical block-based programming and Python and MicroPython to Arduino C++.
50%UnverifiedQuaddle features a hand-guided teaching function: using feedback servos, users can directly manipulate the joints by hand to demonstrate new movements, which the robot dog records and reproduces without any coding required.
50%UnverifiedQuaddle's firmware is based on the OpenCat framework and will be open-sourced, and its URDF model has been published on HuggingFace.
50%UnverifiedSome of Quaddle's parts will be open-sourced with 3D printing files available, but certain critical structural components must be injection-molded due to motion load requirements, making it a semi-open-source hardware product.
50%UnverifiedThe number of servos directly determines the degrees of freedom and richness of movement, while linearly driving up cost, weight, and power consumption; Quaddle reduces to 4 servos in exchange for a low barrier to entry and lower price, at the cost of an upper limit on motion precision and complex movement capability.
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