hexagon logo

Legacy TP - NoOK, Xact TP - OK

Recently we had a dispute, for many years we measured a part according to the program sent to us by our collegues from another country, I am forbidden to doubt their qualifications. They used an legacy method for measuring TP, everything was in order until we started having problems with the cnc producing this part, some holes went out of tolerance, for the sake of interest I tried to apply xact and for these measurements it is not ideal but in the tolerance zone, now we do not know what to do, because our parts do not pass through the old dimensions, but the repair service says that it cannot find the problem, I am still a beginner and do not want to go against great minds, but I just wonder how it would be more correct. Here measurements of the same part, and we use iterative alignment.
Have a great sunny weekend everyone Slight smile
  ​​​​​​​
Parents
  • I'm looking at the points that create Datum A, is A not a Flat surface??????? And look at the difference between your THEO and your actuals (RED). Either the ACTUALS are wrong or Your VECTORS. Your customer is full of bull.
    
    MODE/DCC
    CLEARP/ZPLUS,35,ZPLUS,35,ON
    PNT5 =FEAT/POINT,CARTESIAN
    THEO/<5.216,32.796,[COLOR=#e74c3c]0.118[/COLOR]>,<0,0,1>
    ACTL/<5.217,32.796,-0.659>,<0,0,1>
    MEAS/POINT,1,WORKPLANE
    MOVE/CLEARPLANE
    HIT/BASIC,NORMAL,<5.216,32.796,0.118>,<0,0,1>,<5.217,3 2.796,-0.659>,USE THEO=YES
    ENDMEAS/
    PNT6 =FEAT/POINT,CARTESIAN
    THEO/<-27.029,20.012,[COLOR=#e74c3c]0.111[/COLOR]>,<0,0,1>
    ACTL/<-27.029,20.012,-0.652>,<0,0,1>
    MEAS/POINT,1,WORKPLANE
    MOVE/CLEARPLANE
    HIT/BASIC,NORMAL,<-27.029,20.012,0.111>,<0,0,1>,<-27.029,20.012,-0.652>,USE THEO=YES
    ENDMEAS/
    PNT7 =FEAT/POINT,CARTESIAN
    THEO/<-5.7,-34.325[COLOR=#e74c3c],0.074[/COLOR]>,<0,0,1>
    ACTL/<-5.7,-34.328,-0.609>,<0,0,1>
    MEAS/POINT,1,WORKPLANE
    MOVE/CLEARPLANE
    HIT/BASIC,NORMAL,<-5.7,-34.325,0.074>,<0,0,1>,<-5.7,-34.328,-0.609>,USE THEO=YES
    ENDMEAS/
    PNT8 =FEAT/POINT,CARTESIAN
    THEO/<29.959,11.994,[COLOR=#c0392b]0.102[/COLOR]>,<0,0,1>
    ACTL/<29.96,11.995,-0.627>,<0,0,1>
    MEAS/POINT,1,WORKPLANE
    MOVE/CLEARPLANE
    HIT/BASIC,NORMAL,<29.959,11.994,0.102>,<0,0,1>,<29.96, 11.995,-0.627>,USE THEO=YES
    ENDMEAS/
    A PLN =FEAT/PLANE,CARTESIAN,TRIANGLE,NO
    THEO/<0.611,7.62,[COLOR=#c0392b]0.101[/COLOR]>,<0.0000598,-0.0006592,0.9999998>
    ACTL/<0.612,7.618,-0.637>,<-0.0003234,0.0007474,0.9999997>
    CONSTR/PLANE,BFRE,PNT5,PNT6,PNT7,PNT8,,
    OUTLIER_REMOVAL/OFF,3
    FILTER/OFF,WAVELENGTH=0
    MOVE/CLEARPLANE
    A2 =ALIGNMENT/START,RECALL:A1,LIST=YES
    ALIGNMENT/LEVEL,ZPLUS,A PLN
    ALIGNMENT/TRANS,ZAXIS,A PLN
    ALIGNMENT/END
    
  • neil.challinor The one detail that I have learn in my experience. The "10 YEARS OF EXPERIENCE" 9 times out of 10, This is a person rounding up their 1 or less year of experience to make them look better, and no I'm not talking about you, I'm talking about this particular case. This program is made from a beginner, after I went through this line by line. Just ticks me off when a person like this just flat out lies.
Reply
  • neil.challinor The one detail that I have learn in my experience. The "10 YEARS OF EXPERIENCE" 9 times out of 10, This is a person rounding up their 1 or less year of experience to make them look better, and no I'm not talking about you, I'm talking about this particular case. This program is made from a beginner, after I went through this line by line. Just ticks me off when a person like this just flat out lies.
Children
No Data