I am 18 and fairly new at CAD yet I have designed a few things before but I have never uploaded any of my designs online. I used to be on a robotics team in high school. I have always used solidworks. I currently do not own a 3D printer to test my designs on, but I do double check my work to make sure it has a great possibility of being able to be printed. If you have any advice or criticism that will help me out please let me know.