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Construct a Nominal plane

TCMEASURE
I have a bent tube and I want to construct a nominal plane at one end of the pipe so I can intersect a cylinder to it, I have the XYZIJK info but I am unsure of the best way to do this, should it be before or after my alignment, what type of plane do I use? I have cad.

4.3mr1
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  • Here is my CAD file. The top of the pipe is on a compound angle to the Datum scheme. What I would like to do is set a nominal plane on top. If I go in and make an alignment and set an auto feature Circle on top I have my location and IJK. I would like to construct a plane using that feature but have it stay a nominal feature. Can it be done this way?
    This is the circle.

    CIR1 =FEAT/CONTACT/CIRCLE,CARTESIAN,OUT,LEAST_SQR
    THEO/<51.513,10.96,113.55>,<-0.2737905,-0.5201251,0.8090171>,101.6,0,0,360
    ACTL/<51.513,10.96,113.55>,<-0.2737905,-0.5201251,0.8090171>,101.6,0,0,360
    TARG/<51.513,10.96,113.55>,<-0.2737905,-0.5201251,0.8090171>
    ANGLE VEC=<0.3859196,-0.8298844,-0.4029366>
    DIRECTION=CCW
    SHOW FEATURE PARAMETERS=NO
    SHOW CONTACT PARAMETERS=YES
    NUMHITS=6,DEPTH=0,PITCH=0
    SAMPLE HITS=0,SPACER=0
    FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
    SHOW HITS=YES
    HIT/BASIC,<71.118,-31.198,93.081>,<0.3859196,-0.8298844,-0.4029366>,<71.118,-31.198,93.081>
    HIT/BASIC,<100.073,-1.237,122.142>,<0.9559006,-0.2400957,0.1691394>,<100.073,-1.237,122.142>
    HIT/BASIC,<80.468,40.921,142.612>,<0.569981,0.5897887,0.572076>,<80.468,40.921,142.612>
    HIT/BASIC,<31.908,53.118,134.019>,<-0.3859196,0.8298844,0.4029366>,<31.908,53.118,134.019>
    HIT/BASIC,<2.953,23.157,104.958>,<-0.9559006,0.2400957,-0.1691394>,<2.953,23.157,104.958>
    HIT/BASIC,<22.558,-19.001,84.489>,<-0.569981,-0.5897887,-0.572076>,<22.558,-19.001,84.489>

    How can I modify the code to make this a nominal plane?
    Or is there a better way?

    This will do it for you. 

    NOM_PLN=GENERIC/PLANE,DEPENDENT,CARTESIAN,$
            NOM/XYZ,<CIR1.X.THEO,CIR1.Y.THEO,CIR1.Z.THEO>,$
            MEAS/XYZ,<CIR1.X.THEO,CIR1.Y.THEO,CIR1.Z.THEO>,$
            NOM/IJK,<CIR1.I.THEO,CIR1.J.THEO,CIR1.K.THEO>,$
            MEAS/IJK,<CIR1.I.THEO,CIR1.J.THEO,CIR1.K.THEO>



    Bill
Reply
  • Here is my CAD file. The top of the pipe is on a compound angle to the Datum scheme. What I would like to do is set a nominal plane on top. If I go in and make an alignment and set an auto feature Circle on top I have my location and IJK. I would like to construct a plane using that feature but have it stay a nominal feature. Can it be done this way?
    This is the circle.

    CIR1 =FEAT/CONTACT/CIRCLE,CARTESIAN,OUT,LEAST_SQR
    THEO/<51.513,10.96,113.55>,<-0.2737905,-0.5201251,0.8090171>,101.6,0,0,360
    ACTL/<51.513,10.96,113.55>,<-0.2737905,-0.5201251,0.8090171>,101.6,0,0,360
    TARG/<51.513,10.96,113.55>,<-0.2737905,-0.5201251,0.8090171>
    ANGLE VEC=<0.3859196,-0.8298844,-0.4029366>
    DIRECTION=CCW
    SHOW FEATURE PARAMETERS=NO
    SHOW CONTACT PARAMETERS=YES
    NUMHITS=6,DEPTH=0,PITCH=0
    SAMPLE HITS=0,SPACER=0
    FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
    SHOW HITS=YES
    HIT/BASIC,<71.118,-31.198,93.081>,<0.3859196,-0.8298844,-0.4029366>,<71.118,-31.198,93.081>
    HIT/BASIC,<100.073,-1.237,122.142>,<0.9559006,-0.2400957,0.1691394>,<100.073,-1.237,122.142>
    HIT/BASIC,<80.468,40.921,142.612>,<0.569981,0.5897887,0.572076>,<80.468,40.921,142.612>
    HIT/BASIC,<31.908,53.118,134.019>,<-0.3859196,0.8298844,0.4029366>,<31.908,53.118,134.019>
    HIT/BASIC,<2.953,23.157,104.958>,<-0.9559006,0.2400957,-0.1691394>,<2.953,23.157,104.958>
    HIT/BASIC,<22.558,-19.001,84.489>,<-0.569981,-0.5897887,-0.572076>,<22.558,-19.001,84.489>

    How can I modify the code to make this a nominal plane?
    Or is there a better way?

    This will do it for you. 

    NOM_PLN=GENERIC/PLANE,DEPENDENT,CARTESIAN,$
            NOM/XYZ,<CIR1.X.THEO,CIR1.Y.THEO,CIR1.Z.THEO>,$
            MEAS/XYZ,<CIR1.X.THEO,CIR1.Y.THEO,CIR1.Z.THEO>,$
            NOM/IJK,<CIR1.I.THEO,CIR1.J.THEO,CIR1.K.THEO>,$
            MEAS/IJK,<CIR1.I.THEO,CIR1.J.THEO,CIR1.K.THEO>



    Bill
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