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  1. #1
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    zigzag lines in the chinese laser co2 cutting machine

    Hi dear
    As you can see in our attached photos, A 1390 Laser machine that contains: Ruida RDC6442G Motherboard & Leadshine 3dm580 Motion Controller, has a problem with Cutting the desired small patterns on the material, and the final output (typically letters) comes out with zigzag edges. Every parts of the machine has been repaired or replaced with similar parts but the problem still exists. We appreciate hearing your solution


    For resolving protest in the laser machine LC1390 is reported plan when cutting in areas of the curve.
    When cutting plan in areas of the curve
    Test and the following tests conducted
    1. belt tension adjustment and ensuring the safety belt
    2. Y axis alignment of the rail wagons axis.
    3. manipulation regulation speed and acceleration parameter and device parameters.
    4. replacing the motor and stepper motor driver and changes in switch setting of test driver.
    5. replacing the mainboard RDC6442 with Leetro MPC6565

    Attention: In cases 1 to 4 no changes was observed in about 5 to about 20%was achieved

  2. #2
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    Re: zigzag lines in the chinese laser co2 cutting machine

    i have same problem on RD1390.

  3. #3
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    Re: zigzag lines in the chinese laser co2 cutting machine

    Have you checked for backlash?

  4. #4
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    Re: zigzag lines in the chinese laser co2 cutting machine

    Is the bag set on the Chinese machine for engraving only?????????Click image for larger version. 

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  5. #5
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    Re: zigzag lines in the chinese laser co2 cutting machine

    Are you in area with a lot of dust/sand? What grease/oil do you use?
    Polish @ Éire

  6. #6
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    Re: zigzag lines in the chinese laser co2 cutting machine

    [QUOTE=abyss;2066000]Are you in area with a lot of dust/sand? What grease/oil do you use?[/QUOTE

    yes
    the axes are cleaned and greased

  7. #7
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    Re: zigzag lines in the chinese laser co2 cutting machine

    I had the same issue and the problem is caused by the acceleration when changing direction, I use different software (lasercut5.3) so cant say where the setting is in your's however it was the corner acceleration setting in mine that was set to too high a value.

  8. #8
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    Re: zigzag lines in the chinese laser co2 cutting machine

    Try cutting a square that has been cut into 4 triangles and post those results. cut one at 90 degrees then another that has been turned 45 degrees as a whole. leave about 5 mm between sections. and make three squares of varying size from 30mm , 60mm to 100mm overall size... also include a circle for each set of squares that is equal in size to the associated square.... 30mm square 90 & 45 plus one circle 30 mm.. etc.

    basically this makes 9 shapes to cut please post your results

  9. #9
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    Re: zigzag lines in the chinese laser co2 cutting machine

    Quote Originally Posted by SignWave View Post
    Try cutting a square that has been cut into 4 triangles and post those results. cut one at 90 degrees then another that has been turned 45 degrees as a whole. leave about 5 mm between sections. and make three squares of varying size from 30mm , 60mm to 100mm overall size... also include a circle for each set of squares that is equal in size to the associated square.... 30mm square 90 & 45 plus one circle 30 mm.. etc.

    basically this makes 9 shapes to cut please post your results

    Thanks for your answering
    and I would appreciate if you send me vector of this.
    I am waiting for your answering.
    thanks

  10. #10
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    Re: zigzag lines in the chinese laser co2 cutting machine

    yeah... its not really up to me to create the files for you to test on your machine.. this will only take you a few minutes to create. I am not able to load a vector to this website. Im not familiar with doing so.

  11. #11
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    Re: zigzag lines in the chinese laser co2 cutting machine

    Here you have test files - not exactly same as mentioned, but idea is close.
    https://www.cnc.info.pl/download.htm...158&special=97
    Polish @ Éire

  12. #12
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    Sep 2016
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    Re: zigzag lines in the chinese laser co2 cutting machine

    it must be your focus lens or the head that carrying it check if there is any backlash

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