Angles?

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  • Angles?

    I'm trying to measure draft inside of a diameter. I've tried using a cone autofeature but it's giving me a error best fit calc. Using two circles is not working for a constructed cone. Any ideas?
    I used to be high on life but I built up a tolerance.

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    sigpic

  • #2
    Try 3
    DR Watson shut me down again !!!! :mad: Smoke break:eek:

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    • #3
      One thing you could do is make the diameter zero. Then measure points @ bottom & top of wall & construst line. Just a thought
      sigpic.....Its called golf because all the other 4 letter words were taken

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      • #4
        Did you try using a learned feature. I'd try that with 3 levels. See what it comes up with. If it is a shallow angle it will probably guess it as a cylinder. Go edit-overide guess and choose cone. Then, look at it to make sure it has the vector correct.

        Call it a day and worry about it on monday? Only ideas I've got.

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        • #5
          Try

          Have to use other means - other than CMM...

          Taper formula - measure top dia, measure bottom dia, find the length and do trig it will give you per side.

          Just my 0.02

          I am so outta here!!! Have a good T-day...

          JRZ
          PC-DMIS CAD++ 3.7 from 4.2 MR1

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          • #6
            What about making a mold, then verifying on an optical comparator?

            ZydecoPete
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            • #7
              Draft Angles

              I measure a lot of plastic parts and I find any drafted holes or bosses 1 degree or less are difficult to use auto cone to measure. For this application I would measure top and bottom diameters, assign variables, calculated draft angle, create generic cone and then report draft angle.

              Kevin


              ASSIGN/V1 = RAD2DEG(ATAN((CIR1_MDFT.R-CIR1.R)/(CIR1.Z-CIR1_MDFT.Z)))
              F1 =GENERIC/CONE,DEPENDENT,RECT,OUT,$
              NOM/XYZ,0,0,0,$
              MEAS/XYZ,0,0,0,$
              NOM/IJK,0,0,1,$
              MEAS/IJK,0,0,1,$
              DISTANCE/0,0,$
              ANGLE/-1,V1
              DIM DFT_ANG1= LOCATION OF CONE F1 UNITS=MM ,$
              GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
              AX NOMINAL +TOL -TOL MEAS MAX MIN DEV OUTTOL
              A -1.000 0.500 0.500 -1.003 -1.003 -1.003 -0.003 0.000 #
              END OF DIMENSION DFT_ANG1
              B & S XCEL 7-10-7
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              • #8
                Nice Solution!
                Links to my utilities for PCDMIS

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                • #9
                  Because I'm still using 3.2063, with no autocone feature, I manually create a cone with min of 9 points, then dimension the angle.
                  sigpic Life is not a journey to the grave with the intention of arriving safely, but rather a skid in broadside, totally worn, proclaiming WOW What a ride!

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