This is a robotic arm produced with 3D printing technology. It uses stepper motors and air pumps for precise control.
Robot arm size: length, width and height are about 21*14*27cm
Using 3 stepper motors and matching pulleys, the control is precise.
Suction cup air pump, easy to suck up various items
Large size and power
3D printing production, there may be burrs, those who mind be careful