But what if there was a way to bridge that gap? This robot arm guide offers a guide to building a mini robotic arm using Arduino, complete with 3D-printed parts and easy-to-follow instructions.

Learn how to build your own desktop fully functional robot arm powered by Arduino hardware and assembled using 3D printed parts.

From there, the robot learned to use its remaining three legs to balance and move around. Researchers were able to move the robot around using a joystick on a remote controller.

At $2,599, the Roborock Saros Z70 should perform nearly perfectly. Though it's good at cleaning, the arm fumbles way too often.