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Thread: G68 Coordinate Rotation System

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  1. 08-10-2007, 09:13 PM #1
    ebigfoot2
    ebigfoot2 is offline Registered
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    G68 Coordinate Rotation System

    Does a G68 coordinate rotation system stay active if one gets out of a main program and enters a new subroutine? In addition, can G54-G59 be used before the G68 and will the G54-G59 work piece coordinate system reactivate after G69 is commanded?
    Thanks.
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  2. 08-11-2007, 04:09 AM #2
    bob in windsor
    bob in windsor is offline Registered
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    Yes, g68 will stay on until you cancel it whether you go in and out of subroutines.You can call g54, g55 before you call the rotation command.
    G90 G43 G55 H2 Z6
    S1000M3
    G68 X0Y0R90
    X12Y15
    Z0
    M98 P3 L2
    G0Z6
    G69
    M30
    I don't know if your control defaults back to G54 at m30 or reset.If not you need to put it in before the m30 line or you will still be in G55.You can also rotate the coordinates in a sub, say if you wanted to cut angled slot and you knew the center point you wanted to start at.

    G91
    G68R45
    G1 G41Y-.5D1 F40
    X5
    G3X0Y1R.5
    G1X-5
    G3X0Y-1R.5
    G1G40Y.5
    G90
    G69
    M99
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  3. 08-13-2007, 01:33 PM #3
    ebigfoot2
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    Thanks Bob in windsor.
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