So you are looking for a robot arm for more serious projects? The ViperX 300 Robot Arm has you covered. It has 5DOF and 360-degree range of motion. It uses DYNAMIXEL XM540-W270-R & XM430-W350-R servos for smoother movement. The robot arm also has a CM9.04-C open-source controller.
The ViperX 300 is constructed from 20mm x 40mm extruded aluminum and heat resistant high strength ABS 3D printed materials. You can 3D print custom grippers for it too.