Focus Ruler
Physical photo：
How to use it:
The focus ruler is placed between the material and the laser head, which
can moves back and forth slightly to prove that the focus is now correct.
Related parameters
Materials : 5mm wrought wood panels.
File : Please see attached
Parameters setting : please refer this picture which in NOVA51-130W.
File : Please see attached
Parameters setting : please refer this picture which in NOVA51-130W.
END
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