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IndustryArena Forum > CNC Electronics > Stepper Motors / Drives > Does anyone know how to wire this breakout board!?
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  1. #1
    Join Date
    Nov 2011
    Posts
    17

    Does anyone know how to wire this breakout board!?

    i have this 5 axis sainsmart breakout board, and i cant find any documentation for how to wire the BOB to the stepper drivers. I have spoiled myself with gecko 540's with prewired db9 cables in the past, so ive never wired a BOB like this.



    The BOB looks like this:

    Attachment 258386

    Sainsmart 5 axis Breakout Board


    The Motor Drivers look like this.

    Attachment 258388

    FMD2740A Controller

    Any help on the wiring to these would be very appreciated. thanks for your time, and hopefully knowledge

  2. #2
    Join Date
    Jan 2007
    Posts
    5

    Re: Does anyone know how to wire this breakout board!?

    Nothing ever done for a child is wasted

  3. #3
    Join Date
    Mar 2007
    Posts
    2083

    Re: Does anyone know how to wire this breakout board!?

    Hi

    for each axis

    connect the BOB common +5V terminal to the stepper driver + SP , +DIR and + EN terminals

    then the BOB STEP to driver - SP terminal
    DIP to - DIR
    EN to - EN

    Click image for larger version. 

Name:	bob and driver wiring.jpg 
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    John

  4. #4
    Join Date
    Nov 2011
    Posts
    17

    Re: Does anyone know how to wire this breakout board!?

    THanks you guys for the reply, and help. The machine is now moving and i have steps per unit set up! Thanks again for your help!

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