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Gantry Racking

Discussion in 'General Talk' started by Charlie_M, Mar 15, 2015.

  1. Charlie_M

    Charlie_M Well-Known
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    Hello all,

    So am testing my ox build and I am noticing something. First I am using a Hobby cnc pro driver board with mach3. My motors are wired in unipolar mode. I know most here use a gbrl shield which is a bi polar driver. Should that make a difference? Does anyone here using a Gbrl shield have problems with there gantry racking?


    Charlie
     
  2. JustinTime

    JustinTime Master
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    Charlie, I don't think that the board that you are using will cause racking. Racking is mostly caused by mechanical problem.
     
  3. future_cncist

    future_cncist Well-Known
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    Is it possible that you are losing steps ?
     
  4. Charlie_M

    Charlie_M Well-Known
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    Thanks for the replys. I can see when I jog the y axis that one motor steps before the other and then they both start moving.
     

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