Hello! New CNC owner here. I've seen lots of videos from makers and read lots of comments regarding listening to the sound the bits make as they are cutting. The thing is, I have no idea what I'm listening for and what constitutes a "good" sound and a "bad" sound. Then I hear about bits "screaming" and I'm pretty sure that I've never heard a bit scream as loud as my 19 month old 🤣. Anyone have any input? Thanks!