Hello All,
I am having issues with lines at each split but they are no consistent. Here are some google slides (link below) that show various split sizes and various overlaps. All the fill setting were lest the same for the tests. The last few slides are under a microscope. What’s odd is that the split in the center looks pretty good but at the beginning and end there is a larger gap. That pretty much is true for all of the tests. I have my steps set at 6400 which when I do the tape test, it makes one full rotation and back. It almost seems like it’s calculating the step size differently at the beginning and at the end of the graphic. Any ideas would be great.
Some of this might help, kind of my process. One thing I really like to do is make my splits divide evenly, like your circumference is 207.69 and your steps per 360 is 6400, so each step moves the surface 0.03245mm. Your split 0.645 which is not an even multiple of 0.03245. Start with that. Suggest split of 0.649 (0.03245*20) if you want something close to 0.645. That is probably not all of it though. I like to see how close I can get without any overlap first. I pick a LI that divides evenly into the split, then adjust the circumference by tiny amounts, increasing circumference will close up the gaps.
Some more observations, if going for depth above tactics may not be enough, other 2 options are make your split 2X your LI, like using your numbers make your split 0.0324 and your LI 0.0162, use bi-direction, so rotary moves one slice, runs 2 lines one each direction, moves one split, etc. I like to do this with rings.
Other thing that can really help, if your star is a small enough percentage of your circumference, is to use “Run Whole Shapes” then you can turn on cross hatch, angle increment, etc. Even add a line layer for the perimeter. Way cleaner deep engraving.
Last observation for now, these jogs indicate other issues, timing, jump, loose chuck, incorrect diameter, something else is going on.