To become an injection molding operator, one must have finished a training course on injection molding. Anyone can take this training course, so anyone can become an injection molder. But, not anyone can be a good injection molding machine operator. If you want to become the good one, you have to not just learn how to operate the machine but also learn how to troubleshoot it, maintain it and repair it. Also, you have to learn how to use the computer and CAD/CAM software, so that you will know how to design a molder and interpret the blueprint the right way.