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Laser Engraving and Cutting - 03 How to Laser Engrave and Cut
The manual focusing procedure does not necessarily use the default value for focal length. Instead, you
can manually set a reference point. Then, the machine adjusts the height of the Laser Module based on the
reference point to engrave a series of lines on the material.
(2) Identify the best engraved line.
At the optimal height, the laser is best focused and can engrave the thinnest line on the material surface, which
is called the best engraved line. The lines engraved before or after the best engraved line should be thicker
than it, as illustrated by the following gure.
(Line A is the best engraved line. Lines engraved before or after it are thicker.)
However, sometimes the engraving result does not contain the best engraved line. For example, Line B is the
thinnest line in the following picture, but it is not the best engraved line. This is because the Laser Module did
not reach the optimal height during the focusing procedure. In this case, the focusing procedure will fail. For
more information about how to deal with failed focusing, see Laser Engraving and Cutting – 6.1 Auto Focus
Fails.
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