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Ghosting lines

Posted: Fri Dec 17, 2021 2:04 am
by Scenmed
The 100 watt (reed/black style) Chinese OmTech laser was working fine until ghost lines started to appear while cutting and sometimes during engraving. I checked mirror alignment and all 3 are centered properly. They are all clean as is the laser tube output. Today I installed a new focus lens (1.5") and although the lines are a bit sharper I'm still getting ghost lines. Please see picture.
Can anyone advise me as to what may be causing these phantom lines? Thank you!

Re: Ghosting lines

Posted: Wed Dec 29, 2021 3:02 am
by LINUS
Test the verticality.