2.5a Y axis limit?

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  • November 1, 2015 at 9:35 pm #8879
    Custom Creations
    Member

    I was wondering that if the drivers on the TinyG board are 2.5a limit, then how does the Y axis on an OX style CNC work properly when motors are wired in parallel and both are 2.8a motors?? It would seem that they would be seriously under powered. Any suggestions? Maybe I am missing/not understanding something.

    November 2, 2015 at 6:55 am #8883
    cmcgrath5035
    Moderator

    Missing something – no, you are not.
    tinyG is predominately used for 4 motor (X, Y, Yr,Z) setups so each motor gets a driver.
    Some folks move to using external drivers.
    Most NEMA23s generate good torque at 1A or less(each).
    But if you want your setup to have max drive capability, individual drivers and good thermal handling (heat sinks, fans) highly recommended.

    November 2, 2015 at 9:42 am #8884
    Custom Creations
    Member

    Thanks for the reply. How do you go about using external drivers?

    November 2, 2015 at 1:10 pm #8885
    cmcgrath5035
    Moderator

    Here is a good place to start the discussion

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