Trossen Robotics

Trossen Robotics WidowX 250

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Our Verdict: The go-to research arm for labs needing ROS2 manipulation at an accessible price. DYNAMIXEL modularity is a huge advantage.

The Trossen Robotics WidowX 250 is built on ROBOTIS DYNAMIXEL smart servos, providing a research-grade robot arm at an accessible price. With 6 DOF, a 250g payload at full extension, and full ROS2 integration, it is a popular choice for manipulation research, especially when mounted on mobile platforms.

The WidowX 250’s modular DYNAMIXEL construction means researchers can reconfigure the arm, swap servos, and extend the kinematic chain as needed. Trossen provides comprehensive ROS2 packages including MoveIt configuration, Gazebo simulation models, and perception pipeline templates.

Manipulation research Mobile robot arm integration AI grasping experiments University robotics courses

Specifications

Payload 250g at full extension
Reach 650 mm
Degrees of Freedom 6 + gripper
Servos DYNAMIXEL XM430/XL430
SDK ROS2, MoveIt, Gazebo
Weight 2.1 kg (4.6 lbs)

Pros & Cons

A quick summary of where this model performs well and where it falls short.

Pros

  • Excellent ROS2 and MoveIt integration
  • DYNAMIXEL modularity and reconfigurability
  • Affordable for a research-grade arm
  • Active community and support
  • Great mobile manipulation platform

Cons

  • Very limited 250g payload
  • DYNAMIXEL servos have torque limits
  • Not suitable for industrial tasks
  • Requires careful calibration

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Trossen Robotics WidowX 250
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