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DIY 4-DOF 3D-printed robotic arm plays Nine Men's Morris

A 4-DOF 3D-printed DIY robotic arm has for the first time successfully recognized an opponent's moves via camera and autonomously completed a game of Nine Men's Morris. Joints J1-J3 use POM gears from Tarot 450 helicopter main gears paired with NEMA 14 stepper motors, J4 is driven by an RC servo, and the gripper is made of flexible TPU; the controller is a BTT SKR Pico 3D printer board with TMC2209 drivers supporting sensorless homing.

Part of the event: DIY 3D-printed robotic arm plays Nine Men's Morris for the first time

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