3DOF Arm and Claw

What?

  • Create robotic arm that can extend to reach over 33 inches and fit inside robot at rest

  • Be able to deliver cones right side up from both back and front of robot only using the arm mechanism

  • Build with set budget

How?

  • Used Onshape to design arm

  • Assembled out of stock parts from many brands

  • Calculated torque output and weight applied to motors

  • Kept project cost lows through cost optimazation of standard parts

Results

  • Was able to pick up cones from ground and raise them to various heights keeping the cone right side up and dropping

  • Stayed under projected budget and allowed to reallocate resources elsewhere

Prototypes, Prior Designs, and Inspiration

  • 2DOF Arm Prototype

    2DOF Arm Prototype

    Ideation Stage

  • Claw Design

    Claw Design

    First Design

  • 2DOF Arm and Claw

    2DOF Arm and Claw

    First Version

  • Updated Dual Motor Design

    Updated Dual Motor Design

    3D CAD Design

  • Updated Dual Motor Version

    Updated Dual Motor Version

    Second Version

More About Arm and Claw

    • It is important to understand the forces and torques when working with motors

    • Prototyping stage is a critical stage to understand what you want so you don't have to have so many change of inside product

    • No Future Step at this Time

    • First Tech Challenge Team 11980