3D robotic arm CyberBrick

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🔧 Mod #1 – Update from June 23, 2025

In today’s modification, I shortened the robot arm, which significantly improved its agility and responsiveness. In the previous version, the longer arm caused issues when the battery voltage dropped — the servos lacked enough torque to move it properly. With the shorter arm, this is no longer a problem, even under lower power conditions.

I also increased the internal space inside the servo housing and widened the cable channels, making it much easier to route and organize the wires neatly within the arm.

 

⚠️ Note:
To ensure full strength and performance, the battery should be fully charged. Otherwise, your robot might get a little lazy. 😉

 

🎥 Watch it in action:

Controlling the arm takes a bit of practice — at first, it's more of a wrestling match than precision work, but with a few tries, you'll feel like a true arm master 😄

 

This fully functional 3D-printed robotic arm is designed for learning, experimentation, and hobbyist use. The structure is built using the Cyberbrick kit, with control provided by the original Cyberbrick remote, allowing intuitive manipulation of the arm's movements.

The build includes 3 servo motors and three servo wire extensions, ensuring smooth motion and easy assembly. All parts were printed using FDM technology with PETG filament, offering excellent durability and thermal resistance.

This is a base project that I am actively developing — improvements and additional modules are planned. A video assembly guide will also be available soon to further simplify the setup process.

 

The project serves as a great introduction to robotics and a solid foundation for further custom modifications.