Congratulations on the new saw an welcome to scrolling. On major rookie mistake is not understanding that blades a a disposable commodity like sand paper and paper towels. The effective life of a blade is only between 5 and 30 minutes and that depends on the type and thickness of the materials you are cutting. This is why many experienced scrollers buy blades by the gross. Flying Dutchman, Olsen, and Pegasus and the brands to stick with.