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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
  • Use a generic plane. Is this a measured plane? Is that where you're getting the XYZ and IJKs? If it is then you can do something like this. 

    T_CYL=FEAT/CONTACT/CYLINDER,CARTESIAN,OUT,LEAST_SQR
            THEO/<1.151,-4.288,-10.45>,<-0.6327551,-0.774329,-0.0059655>,0.25,0.44
            ACTL/<1.485,-5.695,-10.455>,<-0.6362902,-0.7714109,0.0077499>,0.252,0.44
            TARG/<1.151,-4.288,-10.45>,<-0.6327551,-0.774329,-0.0059655>
            START ANG=90,END ANG=-90
            DIRECTION=CW
            ANGLE VEC=<0,0,1>
            SHOW FEATURE PARAMETERS=YES
              VOID DETECTION=NO
              REMEASURE=NO,USE THEO=YES
              SURFACE=THEO_THICKNESS,0
              MEASURE MODE=NOMINALS
              RMEAS=NONE,NONE,NONE
              AUTO WRIST=NO
              CIRCULAR MOVES=YES
              CLEARPLANE=NO
              GRAPHICAL ANALYSIS=NO
              FEATURE LOCATOR=NO,NO,""
            SHOW CONTACT PARAMETERS=YES
              NUMHITS=3,NUMLEVELS=3,DEPTH=1.42,END OFFSET=-0.58,PITCH=0
              SAMPLE HITS=0,INIT SAMPLE HITS=3,SPACER=0
              AVOIDANCE MOVE=NO,DISTANCE=1
              FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
            SHOW HITS=NO
T_NM_PL=GENERIC/PLANE,DEPENDENT,CARTESIAN,$
            NOM/XYZ,<T_CYL.X.THEO,T_CYL.Y.THEO,T_CYL.Z.THEO>,$
            MEAS/XYZ,<T_CYL.X.MEAS,T_CYL.Y.MEAS,T_CYL.Z.MEAS>,$
            NOM/IJK,<T_CYL.I.THEO,T_CYL.J.THEO,T_CYL.K.THEO>,$
            MEAS/IJK,<T_CYL.I.MEAS,T_CYL.J.MEAS,T_CYL.K.MEAS>


    If you ONLY want a nominal plane then replace the .MEAS with .THEO and the plane will always be at the nominal location of whatever feature you choose to load your generic plane with.

    Bill
  • 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?
    Attached Files
  • 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
  • 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

    You want to do it AFTER your alignment so that it is relative to your datums on your part.
  • Also, if you haven't picked and measured cir1, then loading the generic plane as I discribed won't work either.

    Bill
  • Alignment plane can also work if it's supposed to be at an alignment position.
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