There could be several reasons why your dryer is making scraping noises. One possibility is that an object, such as a loose coin or button, may be stuck in the drum or the lint trap. This can cause the dryer to make scraping sounds as it spins. Another potential cause could be a worn out or damaged belt. Over time, the belt in your dryer can become frayed or stretched, resulting in scraping noises when it rotates. It’s also worth checking to see if any components of the dryer are worn or damaged, such as the drum slide or rollers. These parts help support and guide the drum as it spins, and if they are worn or broken, they can make grinding noises. Sometimes these problems can be solved by cleaning the drums of debris or replacing the parts. However, if you are not sure how to troubleshoot or repair your dryer yourself, it is best to seek the help of a professional technician.