This Mini Robot Arm can be built in Under $100 Using Arduino Nano and 3D Printed Files - Yanko Design
Briefly

Creating a mini robotic arm with Arduino and 3D printing combines electronics with creativity, inviting enthusiasts into robotics through intuitive hands-on technical work.
Designed for automation and motion control, this project showcases a compact Arduino Nano coordinating movements with four SG90 servo motors, controlled by potentiometers.
With crucial components like resistors, capacitors, and a DC jack for power, the setup ensures stability and efficiency for an effective robotic arm operation.
3D printing with software like Fusion 360 allows for custom design of robot arm parts, transforming digital visions into functional physical components, enhancing creativity.
Read at Yanko Design - Modern Industrial Design News
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