From what I read about scroll saws there are two types that are made the basic end saws use a parallel arm this cause the blade to have a slight movement from to back when its running, the dewalt is a parallel link arm, this setup makes the blade move smooth up down not move front to back and limits the vibration to little if any. Being dewalt its a very well built tool, if I could all my power tools would be dewalt. I am pretty sure they will get you fixed up.