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  1. #1
    Join Date
    Dec 2010
    Posts
    0

    CNC X, Y, and Z Orientation

    Hey guys! I'm very new in CNC and confused with these orientation terms and directions. Can anybody help to straight things out?

    My "M-D" engineer took out the sticker that the machine's company post on the machine for everyone know the orientation of the machine's movements.

    1.) "M-D" engineer said, "That sticker orientation was drawing wrong, because if you roll a part 90-Deg from where is the operator stand toward to the back wall of the machine, (Away from the machine door) it means "TURN AROUND X."

    2.) If you want to flip a part from your left hand toward to your right hand, it means "TURN AROUND Y."

    3.) In the middle of the program, he wrote the instruction saying: "Turn 180-Deg on Z".


    What should I do?
    How should I turn and where can I set my part to continues with the machine cycle?

    Does anybody know the answer?

    -Nitwit

  2. #2
    Join Date
    Oct 2008
    Posts
    29
    Most CNC machines use the standard right hand cartesian coordiate system relative to tool motion (not table motion). When you stand in front of the machine (operator position).
    Plus X-axis tool moves to right (table left).
    Plus Y-axis tool moves away from (table moves to) the operator.
    Plus Z-axis tool moves up (away from table).
    Plus A-axis rotates around X-axis clock-wise toward plus X-axis.
    Plus B-axis rotates around Y-axis clock-wise toward plus Y-axis.
    Plus C-axis rotates around Z-axis clock-wise toward plus Z-axis.

    Rotations also are relative to tool motion (not table motion) so plus table rotation is counter clock-wise.

    Of course not all machine tool builders comply with the standard......

    NCdata

  3. #3
    Join Date
    Jul 2012
    Posts
    10
    Quote Originally Posted by NCDataServices View Post
    Most CNC machines use the standard right hand cartesian coordiate system relative to tool motion (not table motion). When you stand in front of the machine (operator position).
    Plus X-axis tool moves to right (table left).
    Plus Y-axis tool moves away from (table moves to) the operator.
    Plus Z-axis tool moves up (away from table).
    Plus A-axis rotates around X-axis clock-wise toward plus X-axis.
    Plus B-axis rotates around Y-axis clock-wise toward plus Y-axis.
    Plus C-axis rotates around Z-axis clock-wise toward plus Z-axis.

    Rotations also are relative to tool motion (not table motion) so plus table rotation is counter clock-wise.

    Of course not all machine tool builders comply with the standard......

    NCdata
    This thread is old but I looked everywhere for this info.
    Thanks a lot.

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