4 DOF Acrylic Robot Arm Mechanical Claw Kit with Servo

🤖 4-DOF Acrylic Robot Arm Kit with 4 Servo Motors and Gripper Claw

A laser-cut acrylic robotic arm kit that arrives flat-packed with four servos, the gripper claw, fasteners, and an illustrated assembly manual. Once built, it gives you base rotation, shoulder and elbow movement, plus a claw that opens and closes — enough axes to pick up small objects and learn real servo-driven robotics.

✨ Key Features

• 4 degrees of freedom: base rotation, shoulder, elbow, and gripper.
• Four metal-gear micro servos included, with a screw/nut hardware bag.
• Laser-cut acrylic frame — slots together accurately, no drilling or cutting.
• Two-finger claw with a gear-driven open/close mechanism.
• Printed step-by-step assembly guide included.
• Light enough to run from a standard 5-6V servo supply.

📋 Specifications

• Degrees of freedom: 4 (base, shoulder, elbow, gripper)
• Frame material: laser-cut acrylic
• Servos: 4 × micro metal-gear servo (MG90S class)
• Control: standard 50Hz PWM servo signal
• Supply: 4.8-6V DC, separate servo supply recommended
• Kit contents: acrylic parts, 4 servos, screw/nut set, assembly manual

• Assembly required

🔧 Perfect for

• Learning servo kinematics, PWM control, and robot-arm sequencing
• Arduino, ESP32, or Raspberry Pi robotics projects
• STEM classrooms, workshops, and science-fair demos
• Picking and placing small, light objects in tabletop automation demos

Use an external 5-6V supply rated for the stall current of four servos and share ground with your controller — powering them from the microcontroller's regulator will brown out the board.