Section 7: Using the Epilog Dashboard
66
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 250 DPI and 500 DPI resolution is shown.
Helpful Hints
1. There are four times as many dots engraved at 500 DPI than there are at 250
DPI - twice as many horizontally and twice as many vertically.
2. The gap between the dots is greatly reduced at 500 DPI. At 250 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 500 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 500 DPI produces a much
deeper burn into materials like wood than you would see engraving the
same thing at 250 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
250, 400, and 500 DPI engraving for each different material listed.
500 DPI250 DPI
To Next Page
Loading...