Power management + reverse polarity

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  • #3533
    mcduff
    Member

    I have reverse polarity set for my x and z axis (“$1po=1”, “$3po=1”), and always-on power management for all my motors (“$1pm=0”, “$2pm=0”, “$3pm=0”).

    If I’m at (0,0,0) in mm mode, send “g0x10y10z10” then “g0x0y0z0”, this will start sending current to all motors (3 green lights).

    If I send “g0z1” (small positive z move), it makes the move but current stops flowing to motor 3.  If I then send “g0z0” (small negative z move), it makes the move and current continues to flow after the move.  The same behavior exists for my x axis (current stops flowing after small positive x moves).

    I cannot reproduce that behavior on my y axis.  If I turn off the reverse polarity (“$1po=0”, “$3po=0”), I cannot reproduce the behavior.

     

    In the non-failure case, it seems like there’s a small lag between finishing the move, and current flowing continuously, where current does not flow (the light turns off momentarily after finishing a move, then turns back on again).

     

    v6, build 338.12 ($$: http://pastebin.com/EJDGARRf)

    #3540
    alden
    Member

    This might bee a bug. I will try to reproduce this and see what’s going on. I have logged this as an issue (#28) the synthetos tinyg gihub.

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