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Open Duck Mini v2 vs ToddlerBot 2.0

Cost, parts and difficulty side by side.

Open Duck Mini v2ToddlerBot 2.0
Cost$360 to $470$5,730 to $7,760
Difficultyintermediateadvanced
Parts2136
3D printingyesyes
Kits available01
Made byAntoine Pirrone and contributors (sponsored by Hugging Face and Pollen Robotics)Stanford (Haochen Shi and the TML lab)
Full listOpen Duck Mini v2 parts listToddlerBot 2.0 parts list

Open Duck Mini v2

A 42 cm 3D printed biped inspired by Disney's BDX droid, walking with reinforcement learning policies on a Pi Zero 2W.

ToddlerBot 2.0

Research humanoid about toddler size, built from Dynamixel servos and printed parts, with full RL and teleoperation software.

The short answer

Open Duck Mini v2 costs less to start: about $360 against $5,730 in parts. Open Duck Mini v2 has the shorter parts list (21 lines against 36).

Motors and servos

Open Duck Mini v2

  • 14 x Feetech STS3215 7.4V, 19 kg.cm (C001, 1/345 gear)
  • 2 x 9g micro servo

ToddlerBot 2.0

  • 2 x DYNAMIXEL 2XC430-W250-T
  • 6 x DYNAMIXEL 2XL430-W250-T
  • 4 x DYNAMIXEL XM430-W210-T
  • 1 x DYNAMIXEL XM430-W350-T
  • 10 x DYNAMIXEL HN11-I101 set
  • 4 x DYNAMIXEL HN12-I101 set