Mach 3 breakout board


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Thread: Mach 3 breakout board

  1. #1
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    Default Mach 3 breakout board

    My router came with this breakout board. Not quite seen in the photo, it has its own power supply attached to terminals to the right of the USB port. My question is, do I still need to connect the usb power

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    Attached Thumbnails Attached Thumbnails Mach 3 breakout board-d396d146-3dbe-4bad-b0ca-623267e97a84-jpg  


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    Default Re: Mach 3 breakout board

    I believe that BOB needs 24v to run the relay. See link for a wiring diagram. I've seen that BOB referred to a "China BOB" on forums.

    https://wiki.printnc.info/en/electronics/wire-sizing

    https://wiki.printnc.info/en/controllers/linuxcnc/bob

    Link to manual

    http://www.ijohnsen.com/blog/wp-cont...t_board-EN.pdf



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    Member routalot's Avatar
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    Default Re: Mach 3 breakout board

    Thats a very common board.You may find an answer on this forum or you may find a few videos on youtube.Is there a particular reason why you chose Mach3?Its quite old and has been superseded by Mach4.



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    Default Re: Mach 3 breakout board

    According to postings here on cnczone Mach 4 has more problems than Mach ever had or will have.



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    Member ger21's Avatar
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    Default Re: Mach 3 breakout board

    In order for the inputs to work, you need a 24V power supply in addition to the 5V supplied by the USB cable.

    Gerry

    UCCNC 2017 Screenset
    [URL]http://www.thecncwoodworker.com/2017.html[/URL]

    Mach3 2010 Screenset
    [URL]http://www.thecncwoodworker.com/2010.html[/URL]

    JointCAM - CNC Dovetails & Box Joints
    [URL]http://www.g-forcecnc.com/jointcam.html[/URL]

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    Community Moderator Al_The_Man's Avatar
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    Default Re: Mach 3 breakout board

    IIRC you can also use the 4th axis output if only using 3 axis for VFD on/off. using the open collector Step pin and assign it in Mach3. This avoids using 24vdc
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
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    Default Re: Mach 3 breakout board

    Quote Originally Posted by liefer View Post
    According to postings here on cnczone Mach 4 has more problems than Mach ever had or will have.
    That makes me really glad I went with LinuxCNC.



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    Default

    Quote Originally Posted by Al_The_Man View Post
    IIRC you can also use the 4th axis output if only using 3 axis for VFD on/off. using the open collector Step pin and assign it in Mach3. This avoids using 24vdc
    Al.
    I’ve actually gone with uccnc, but that breakout board was already on the machine. I am now able to jog my x and y axis after figuring out some basic motor settings, but when I go to jog the z axis it just jiggles and slowly falls. Any ideas for that? Also I have posted a picture of the old Ah Ha control box. I have no idea what to do with the settings on the front, I have assumed that the previous operator had everything set up for these motors...

    Attached Thumbnails Attached Thumbnails Mach 3 breakout board-e745ccc8-86d8-48bf-8fab-7a6ac8d953f6-jpg  


  9. #9
    Member routalot's Avatar
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    Default Re: Mach 3 breakout board

    It used to be quite common for the Z axis to have less power than the others and you may have bought such a machine.It might be helpful to carefully clean all the moving parts of the Z axis since they might have a light coating of dust or corrosion.Having done this you could take a critical look at the plugs and cable joints from the controller to the steppers.



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