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GRBL configuration , Z axis problem !!!

Discussion in 'Controller Boards' started by DavidCNC2017, Dec 6, 2016.

  1. DavidCNC2017

    DavidCNC2017 Journeyman
    Builder

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    Hi,

    I need help to configure my Z-axis.
    As I have all axis identical (same motors, same lead screws... etc) , I set
    Xaxis= 200step/mm
    Yaxis= 200step/mm
    Zaxis= 200step/mm

    For X and Y those setting are close enough to real moving of machine.
    BUT Z axis moves several times more then it should move. ( For example, I type a command to move 10mm, and Z axis moves close to 45 mm.

    What I am doing wrong, and how it could be?

    If I connect X motor to the Z axis connector the same thing happens: now the X axis moves several times more then it should.

    Please help.
    Regards
     
  2. Giarc

    Giarc Master
    Moderator Builder

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    Is the z axis driver using the same microstepping setting as the others? are the jumpers/dip switches (i do not know what drivers you have) all set the same? If one is set to 1/4 and the rest are 1/16, that could make a big difference I believe.
     
  3. DavidCNC2017

    DavidCNC2017 Journeyman
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    Thank You for reply. I have an arduino with gShield by Synthetos.
    I will check jumpers .
     
  4. Gary Caruso

    Gary Caruso OpenBuilds Team
    Staff Member Moderator Builder

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    if you take all the jumpers off, you will have 1/8 stepping on each channel
     

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