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GEOTOL help

browningdmis
management had me run a test. I taped a 2,4,6 block to the table. took the top plane, x+ and y- and created my alignment. I then called them datum a top b x and c y. I measured 2 holes on each side and did a position in geotol. I used the same measured data in legacy and got a .010 difference. How can this be?

What management is saying is the position formula. 2 x (dx^2 + dy^2)^1/2 when you figure it manually using the measured values matches legacy perfectly but it is not matching in GEOTOL.

I understand this is rough and dirty test but I can not explain why parts we measure good with second methods and legacy are good. GEOTOL (which our customer uses and requires) is failing the part. I have asked Hexagon this question and keep being told that GEOTOL is correct to the standard. Which is great but the standard use the 2 x (dx^2 + dy^2)^1/2 formula and is passing this but failing in GEOTOL.

I am not bashing PCD Hexagon or anything but I can not explain it to management.

What am I missing??​
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  • here is what I have for the GEOTOL code for the frist 2 features

    BUB_24 =GEOMETRIC_TOLERANCE/STANDARD=ASME Y14.5,SHOWEXPANDED=YES,
    FEATURE_MATH=LSQ,DATUM_MATH=LSQ,DISPLAY_COORDS=DRF ,
    UNITS=IN,OUTPUT=BOTH,ARROWDENSITY=100,
    SIZE/NOMINAL=0.281,UPPER TOLERANCE=0.009,LOWER TOLERANCE=0,
    REPORT_LOCAL_SIZE=OFF,
    BUB_23_1:
    UAME SIZE:0.2810,
    BUB_23_2:
    UAME SIZE:0.2810,
    BUB_23_3:
    UAME SIZE:0.2810,
    BUB_23_4:
    UAME SIZE:0.2810,
    SEGMENT_1,POSITION,DIAMETER,0.01,__,__,<len>,__,A, B,__,C,__,
    TEXT=OFF,CADGRAPH=OFF,REPORTGRAPH=OFF,MULT=10,
    MEASURED:
    BUB_23_1:0.0000,
    BUB_23_2:0.0000,
    BUB_23_3:0.0000,
    BUB_23_4:0.0000,
    ADD
    FEATURES/BUB_23_1,BUB_23_2,BUB_23_3,BUB_23_4,,
    BUB_30_31 =GEOMETRIC_TOLERANCE/STANDARD=ASME Y14.5,SHOWEXPANDED=YES,
    FEATURE_MATH=LSQ,DATUM_MATH=LSQ,DISPLAY_COORDS=DRF ,
    UNITS=IN,OUTPUT=BOTH,ARROWDENSITY=100,
    SIZE/NOMINAL=0.2735,UPPER TOLERANCE=0.009,LOWER TOLERANCE=0,
    REPORT_LOCAL_SIZE=OFF,
    BUB_29_1:
    UAME SIZE:0.2735,
    BUB_29_2:
    UAME SIZE:0.2735,
    BUB_29_3:
    UAME SIZE:0.2735,
    BUB_29_4:
    UAME SIZE:0.2735,
    SEGMENT_1,POSITION,DIAMETER,0.005,__,__,<len>,B,D, __,__,<dat>,
    TEXT=OFF,CADGRAPH=OFF,REPORTGRAPH=OFF,MULT=10,
    MEASURED:
    BUB_29_1:0.0000,
    BUB_29_2:0.0000,
    BUB_29_3:0.0000,
    BUB_29_4:0.0000,
    SEGMENT_2,POSITION,COMPOSITE,DIAMETER,0.003,__,__, <len>,B,<dat>,<dat>,
    TEXT=OFF,CADGRAPH=OFF,REPORTGRAPH=OFF,MULT=10,
    MEASURED:
    BUB_29_1:0.0000,
    BUB_29_2:0.0000,
    BUB_29_3:0.0000,
    BUB_29_4:0.0000,
    ADD
    DATUMS/REPORTDATUMSIZE=OFF,
    D(DATUM_D):NOM=0.25,+Tol=0,-Tol=0,
    FEATURES/BUB_29_1,BUB_29_2,BUB_29_3,BUB_29_4,,​
Reply
  • here is what I have for the GEOTOL code for the frist 2 features

    BUB_24 =GEOMETRIC_TOLERANCE/STANDARD=ASME Y14.5,SHOWEXPANDED=YES,
    FEATURE_MATH=LSQ,DATUM_MATH=LSQ,DISPLAY_COORDS=DRF ,
    UNITS=IN,OUTPUT=BOTH,ARROWDENSITY=100,
    SIZE/NOMINAL=0.281,UPPER TOLERANCE=0.009,LOWER TOLERANCE=0,
    REPORT_LOCAL_SIZE=OFF,
    BUB_23_1:
    UAME SIZE:0.2810,
    BUB_23_2:
    UAME SIZE:0.2810,
    BUB_23_3:
    UAME SIZE:0.2810,
    BUB_23_4:
    UAME SIZE:0.2810,
    SEGMENT_1,POSITION,DIAMETER,0.01,__,__,<len>,__,A, B,__,C,__,
    TEXT=OFF,CADGRAPH=OFF,REPORTGRAPH=OFF,MULT=10,
    MEASURED:
    BUB_23_1:0.0000,
    BUB_23_2:0.0000,
    BUB_23_3:0.0000,
    BUB_23_4:0.0000,
    ADD
    FEATURES/BUB_23_1,BUB_23_2,BUB_23_3,BUB_23_4,,
    BUB_30_31 =GEOMETRIC_TOLERANCE/STANDARD=ASME Y14.5,SHOWEXPANDED=YES,
    FEATURE_MATH=LSQ,DATUM_MATH=LSQ,DISPLAY_COORDS=DRF ,
    UNITS=IN,OUTPUT=BOTH,ARROWDENSITY=100,
    SIZE/NOMINAL=0.2735,UPPER TOLERANCE=0.009,LOWER TOLERANCE=0,
    REPORT_LOCAL_SIZE=OFF,
    BUB_29_1:
    UAME SIZE:0.2735,
    BUB_29_2:
    UAME SIZE:0.2735,
    BUB_29_3:
    UAME SIZE:0.2735,
    BUB_29_4:
    UAME SIZE:0.2735,
    SEGMENT_1,POSITION,DIAMETER,0.005,__,__,<len>,B,D, __,__,<dat>,
    TEXT=OFF,CADGRAPH=OFF,REPORTGRAPH=OFF,MULT=10,
    MEASURED:
    BUB_29_1:0.0000,
    BUB_29_2:0.0000,
    BUB_29_3:0.0000,
    BUB_29_4:0.0000,
    SEGMENT_2,POSITION,COMPOSITE,DIAMETER,0.003,__,__, <len>,B,<dat>,<dat>,
    TEXT=OFF,CADGRAPH=OFF,REPORTGRAPH=OFF,MULT=10,
    MEASURED:
    BUB_29_1:0.0000,
    BUB_29_2:0.0000,
    BUB_29_3:0.0000,
    BUB_29_4:0.0000,
    ADD
    DATUMS/REPORTDATUMSIZE=OFF,
    D(DATUM_D):NOM=0.25,+Tol=0,-Tol=0,
    FEATURES/BUB_29_1,BUB_29_2,BUB_29_3,BUB_29_4,,​
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