Laser Engraving and DPI Scan Gap

On laser-related forums there is often talk about engraving quality. Engraving quality depends on a lot of variables, your mechanical setup, the controller you are using, the material you are engraving on, and the time of graphic you are engraving onto that material. Most of the talk I hear is focused on the mythical DPI (dots per inch). Unfortunately, some of what is discussed is misleading, impossible to use, or just plain wrong. So today, I am taking a look at the relationship between DPI and the graphics you are engraving. And, we touch