Epilog Fusion13000 Owner's Manual page 86

Section 6: Using the Epilog Dashboard
are however some users that appreciate this high level of quality and are willing to
take twice as long to produce an image at 1200 DPI as it would take them at 600
DPI.
The diagram below shows the concept of raster lines and dots-per-inch (DPI).
The arrows show the change in direction of the carriage between raster lines. The
difference in dot density between 300 DPI and 600 DPI resolution is shown.
300 DPI
Helpful Hints
1. There are four times as many dots engraved at 600 DPI than there are at 300
DPI - twice as many horizontally and twice as many vertically.
2. The gap between the dots is very small at 600 DPI. At 300 DPI the lesser
overlap is responsible for the jagged edges that are visible when engraving
at lower resolutions. It's important to remember that while resolution plays
a part in producing good image quality, the artwork that is sent to be
engraved is just as important. If the artwork that is sent to the laser is poor
quality, trying to engrave it at 600 DPI will not improve it. It's always best
to start with high resolution images. Poor artwork will probably always
look poor at any resolution, while good artwork will look good at any
resolution.
3. Twice as many dots and twice as many lines at 600 DPI produces a much
deeper burn into materials like wood than you would see engraving the
same thing at 300 DPI. This is important to understand because depth of
burn is closely associated with engraving resolution – the higher the
resolution, the greater the depth of burn for a given speed. The relationship
between resolution, depth of engraving and Speed and Power setting is
something that most people figure out with just a little experience. The
Speed and Power Recommendations section of this manual helps to make
this easy to understand by providing different Speed and Power settings for
300, 400, and 600 DPI engraving for each different material listed.
56
600 DPI