Which axis is which

New Home Forum LowRider Troubleshooting – LowRider Which axis is which

This topic contains 2 replies, has 2 voices, and was last updated by  Dewey Oxberger 2 weeks, 1 day ago.

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  • #108896

    Dewey Oxberger
    Participant

    I’m getting my machine running. I got a mini rambo but the dual axis homing looked to useful so a bought a MKS V1.4 and used that.

    Using the UI if I say move X the wheels crawl – that’s good.

    If I say move Y the center carriage goes up.

    If I say move Z the center carriage moves forward and back.

    Is that right or was I supposed to change something in firmware?

    If it’s right do I rotate my parts into the XZ plane and use Y for the cutting depth?

    #108917

    Jeffeb3
    Participant

    Interesting. This machine is flexible, but I don’t think I’ve seen anyone try this. It makes some sense, since you’re using the mpcnc firmware.

    At a minimum, the directions need to follow the “right hand rule” and not the “left hand rule”. So if Y+ goes up, you have two options:
    1) X+ goes to the right and Z+ goes towards you.
    2) X+ goes to the left and Z+ goes away from you.

    As someone who is used to Z going uo, this seems counterintuitive to me. I would make mistakes constantly.

    Which cam are you using? Have you tried to make some gcode to cut a triangle or something?

    That said, to go back to having Z go up, you need to change the firmware to not have dual Y motors and to have dual Z motors.

    #109033

    Dewey Oxberger
    Participant

    Thanks for the reply.  I did a little poking around and it’s easy to define which axis have dual motors. (I’ve never used Marlin before so this is good nerd fun).

    I looked in: Configuration_adv.h and there is a Z_DUAL_STEPPER_DRIVERS. I commented out Y_DUAL_STEPPER_DRIVERS and commented in the Z. Now it does what I expect. Thank goodness. I’m not sure I could have handled XZ as the base plane.

     

     

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