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  1. #1
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    Aug 2017
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    3

    40W laser cutter not cutting thru!!

    Hello Gents,
    I have purchased a Chinese 40W laser engraver/cutter. I am building a prototype, and i needed something that would help to cut some of the parts precisely. So my expectation is not so high, but at least i need to be able to cut acrylic 2.3mm sheet.
    So my problem is, machine cuts thru in the beginning coordinates up to (X,Y=50,50), then does not cut thru at the rest of the cutting areas. Please see attached pictures.
    Also, secondary problem is, seems like laser beam splits into two beams, so shows second cut very tiny.

    As you may understand from the buying from Chinese seller, no help from the seller. and i would appropriate for any help.

    Please let me know what you think.

  2. #2
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    Apr 2006
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    251

    Re: 40W laser cutter not cutting thru!!

    You need to do an alignment. Judging by the look of the cut I would also say you are a fair bit out of focus.

  3. #3
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    Re: 40W laser cutter not cutting thru!!

    Epilotdk,
    Thank you for your quick reply!
    I do have couple questions for your suggestions,
    Alignment of what?;
    -axis ?
    -mirros ?
    -laser ?

    Also about the focus adjustment; why would focus be on/off at certain cutting areas? there is not even a Z height adjustment on this machine, so i assume focus might be done with something else.

    Please let me know what do you think!

  4. #4
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    Apr 2006
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    251

    Re: 40W laser cutter not cutting thru!!

    Oh dear, you didn't do much homework before buying a laser. Watch these videos to start with:

    https://www.youtube.com/watch?v=wY5D27TQwZI

    https://www.youtube.com/watch?v=7hL1QGIhKjM

  5. #5
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    Join Date
    Sep 2005
    Posts
    1385

    Re: 40W laser cutter not cutting thru!!

    Head over to the K40 Chinese laser group on Facebook, there are lots of other people over there just like you. Why would you buy a laser and not even know the basics? Do your Own online research and learn before asking very, very basic questions.
    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router

  6. #6
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    Aug 2017
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    Re: 40W laser cutter not cutting thru!!

    Quote Originally Posted by wmgeorge View Post
    Head over to the K40 Chinese laser group on Facebook, there are lots of other people over there just like you. Why would you buy a laser and not even know the basics? Do your Own online research and learn before asking very, very basic questions.
    Thank you for all for the suggestions.
    some was helpful, some rise up other questions!; why would you reply to a post if you do not contribute to the solution?

    but anyway, i took every advice seriously. I believe this is right place to ask basic and stupid questions. because this is part of my online research. because no one is obligated to reply. because there might be some nice experts willing to give a hint without mocking others.

  7. #7
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    Sep 2005
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    1385

    Re: 40W laser cutter not cutting thru!!

    Found in a 3 second google Search > https://www.google.com/search?q=alin...ddress&ie=&oe=

    The other suggestions was the K40 group on Facebook. Lots of questions answered every day.
    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router

  8. #8

    Join Date
    Mar 2019
    Posts
    1

    Re: 40W laser cutter not cutting thru!!

    Hi! Did you manage to solve Also, "secondary problem is, seems like laser beam splits into two beams, so shows second cut very tiny.". I just bought 40W CO2 USB Cutter Engraving Cutting Machine Laser Printer Laser Engraver from China. As you know, getting their assistance is not easy despite the technology.

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