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Do changing Target Pts "move" the probe along a surface?

NeverSayNever
I'm having problems understanding the code below.

My first question is this: By changing the TARG "X" values for each subsequent vector point, is this, in effect, moving the probe along the surface in the X direction? That is, does this code take actual hits in different locations? Even though the THEO values are EXACTLY the same? This part of the program is attempting to measure the D.O. between two vanes.

My second question: If this is indeed "scanning" along the surface, I'm wondering why this approach is advantageous over , say, just changing the THEO value from point to point.

First post. Appreciate any insight. 


B-B13      =ALIGNMENT/START,RECALL:V2 H9-H9 B/F,LIST=YES
            ALIGNMENT/ROTATE_OFFSET,-23.2,ABOUT,ZPLUS
            ALIGNMENT/END
V1 H9 DO CV-1=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<48.57,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<48.57,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-1= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-1,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.92872 <--------
V1 H9 DO CV-2=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<48.32,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<48.32,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-2= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-2,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.93543 <--------
V1 H9 DO CV-3=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<48.07,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<48.07,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-3= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-3,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.92836 <--------
V1 H9 DO CV-4=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<47.82,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<47.82,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
           SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-4= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-4,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.92612 <--------
V1 H9 DO CV-5=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<47.57,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<47.57,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-5= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-5,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.92872 <--------
V1 H9 DO CV-6=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-6= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-6,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.93633 <--------
V1 H9 DO CV-7=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<47.17,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<47.17,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-7= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-7,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.94292 <--------
V1 H9 DO CV-8=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<46.92,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<46.92,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-8= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-8,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.95806 <--------
V1 H9 DO CV-9=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<46.67,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<46.67,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-9= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-9,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   12.97800 <--------
V1 H9 DO CV-10=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<46.42,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<46.42,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-10= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-10,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   13.00272 <--------
V1 H9 DO CV-11=FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
            THEO/<47.31527,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            ACTL/<46.17,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            TARG/<46.17,5.83643,-37.80182>,<-0.0009674,0.9760714,-0.2174481>
            SNAP=YES
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              AVOIDANCE MOVE=NO,DISTANCE=0
            SHOW HITS=NO
DIM H9-H9 DO-11= 3D DISTANCE FROM POINT V1 H9 DO TE-1 TO POINT V1 H9 DO CV-11,SHORTEST=OFF,NO_RADIUS  UNITS=MM,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX    NOMINAL       +TOL       -TOL       MEAS
M     13.32481    0.20000    0.20000   13.03219 <--------
Parents
  • With this approach the nominal distance between each point and the point on the opposing vane will be the same. You could then dimension each distance and take the one with the smallest deviation value. I would assume that the programmer chose the THEO value for this point that gives a nominal that matches the print and then just modified to target values to search along X to find the points with the smallest deviation as compared to this nominal. There are plenty of other ways you could do this as well but I think this could work fine.
Reply
  • With this approach the nominal distance between each point and the point on the opposing vane will be the same. You could then dimension each distance and take the one with the smallest deviation value. I would assume that the programmer chose the THEO value for this point that gives a nominal that matches the print and then just modified to target values to search along X to find the points with the smallest deviation as compared to this nominal. There are plenty of other ways you could do this as well but I think this could work fine.
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