This is a mechanical robot arm with 2 claws. It uses the Screw mechanism to open and close. I made a robot project using this model. the parts can be cut using laser cutters or cnc machines. This is compatible with any type of pick-and-place robots. you can 3D print any part and use it. Also, if you need more strength then you can use carbon fiber to make it. If you need any simple modifications let me know. I will try to do it for you