This is what a loose Y axis belt looks like when burning

While testing v0.9.24 on a little diode laser(Ortur LM) I saw a gap in the offset circle test pattern.
Turned out my Y axis belt was a little loose and could just be seen by looking at the belt as it went around the drive motor. I didn’t get the belt fully tightened but still you can see the results.

So I did 3 tests using Offset+Fill, Fill(w/Flood=ON), Fill(w/Flood=OFF)