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  1. #1
    Join Date
    May 2013
    Posts
    0

    Question CNC Laser Engraver/Cutter (diode)

    Hy everyone,
    as you will see, I'm a newbie about electronics and I would need help about running diode laser on my cnc router. I would be really greatful if anyone could tell me what do I need from laser to power supply.

    I have this controller for my step motors: eBay.com
    and I want to connect laser looking something like this: eBay.com
    How to connect laser with that board?

    Thank you all

  2. #2
    I know that particular seller and he really does know his stuff about laser diodes.

    I don't know if that would manage a 100% duty cycle but ask DTR (the seller) and he will be able to tell you.

    cheers

    Dave

  3. #3
    Join Date
    May 2010
    Posts
    112
    I know DTR as well, and would certainly recommend buying laser parts from him. Pretty good guy! He sells things cheaper on another site outside ebay, if you'd like me to put you in touch with him that way.

    To connect that laser to your CNC machine you are going to need at least a TTL driver. The TTL driver looks for 0-5V, and the laser will only turn on when the voltage on the TTL pin is higher than 4V or so. Search for 445nm TTL Driver, you should see quite a bit on ebay. I believe most guys use the Z axis of mach3 to turn the laser on and off, you'll have to read up on your particular board to figure out how to configure it.

    Also, that diode will cook to death if you try and run it in that little module at 100% DC. You'll need to put more thermal mass on there, as well as a way to remove that heat. Fans and finned heatsinks are your best bet.

  4. #4
    Join Date
    Jul 2003
    Posts
    281
    Hi,
    I have 2 video's at:
    Testing CAD2Laser G-Code - YouTube
    This Video is the Program Used.
    http://youtu.be/VP62Myf3CRY
    Cheers
    Bob
    CNC Projects

  5. #5
    Join Date
    Dec 2011
    Posts
    17

    Re: CNC Laser Engraver/Cutter (diode)

    hey man!!! did you ever figure out how to do this?

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