my cross lines laser is arrived,

Lasers
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1

my cross lines laser is arrived, first mount ;-)) OK
so I publish the stl files if you want to have a go.

https://www.youmagine.com/designs/k40-chinese-lasercutter-air-assist-with-cross-lines-laser

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2

ATTENTION ! ABS is flamable, do not use without air assit to keep the flame away. enventually make/wrap it into foil shield.