Wow…thank you for this.
I’m new to printing and have been putting this off until I had a better understanding because it seemed so daunting, turns out it isn’t, but that’s mainly thanks to this post. One thing I’d add is the math used to change flow ratio. I looked it up and so can others so it’s really not a big deal.
I do have a question though or maybe two. I’m calibrating eSun Yellow PETG (giving details incase it matters) and after pass 1, I chose 15 but then when I did pass 2, it looks like -9 is the smoothest. It seems like it shouldn’t swing back that much but I suppose that’s why it goes to -9, can you confirm? ALSO, am I looking for the smoothest looking, or the smoothest feeling? lol some look better than others but then some feel smoother than others.
Thanks again for helping out. You’re the real MVP!