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  1. #1
    Join Date
    Jan 2016
    Posts
    53

    Help needed to set new home position

    I guess I'm mixed up here. I'm moving my laser head to a position that I want to set as my new 0,0,0 reference point.

    So I jog (using G1 X Y code) to the position I want and then issue G92 X0 Y0 Z0

    Then I jog away in the X and Y axis and issue a G28 command. The laser head positions to another location and I thought it would (or should) go to the position I set with G92 X0 Y0 Z0.

    I guess I don't understand this.

    Thanks for any help...

  2. #2
    Join Date
    Feb 2006
    Posts
    1792

    Re: Help needed to set new home position

    G28 sends the tool to the reference position which is fixed on a machine.

  3. #3
    Join Date
    Dec 2008
    Posts
    3110

    Re: Help needed to set new home position

    Quote Originally Posted by sinha_nsit View Post
    G28 sends the tool to the reference position which is fixed on a machine.
    To add...
    Your machine has a "base" co-ordinate system\, which cannot be accidently adjusted... assume that it is the permanently fixed machine home position
    - you use the G92 code to set a "User" co-ord system relative to your stock placement.........it is linked to the machine co-ord system ( in the background )

    G28 always refers to the machine coordinate system,
    so a G28 G0 X0Y0 will move to the home position of the machine
    & a G0 X0Y0 will move to where you made the G92 part origin

  4. #4
    Join Date
    Jan 2016
    Posts
    13

    Re: Help needed to set new home position

    Look up G30 in your book. The machines I work on use this as a 2nd reference point return position. They are set in the parameters of the control.

    Regards

  5. #5
    Join Date
    Jan 2016
    Posts
    53

    Re: Help needed to set new home position

    Thanks everyone...!!!

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