Allan Maman was a 17﹣year﹣old boy from the USA. When fidget spinners （指尖陀螺） first came out，he got really interested. He bought some online. When he got them，he found that they were of poor quality. Instead of waiting for someone else to make something better，he decided to make one for himself.
Allan found the way to make it online and tried to make one with his high school's 3 D printer （打印机）. With the help of his science teacher，Allan made his first fidget spinner!He shared it with his classmates. They thought it was great and everyone wanted one. So，Allan started to make more fidget spinners and sold them in his school.
Later，Allan got more and more orders，so he bought his own 3 D printer. He and his friend，Cooper Weiss，also tried to make more people know about their fidget spinners through the Internet. They got popular quickly!Allan and Cooper had to buy more 3 D printers and opened their shop. But soon they needed more help. So，they found a company in New York to make fidget spinners for them.
Allan and Cooper made about ＄350，000 in total!Many magazines and TV stations reported their success. Allan is now moving onto other inventions. He hopes to make more money and give it away to people in need.
