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Constructed Width Error

JacobCheverie
I am measuring two planes PLN3 and PLN4, both in Z+. I would like to create a constructed width. I create a reverse plane from my top plane so it has normal Z-. Below it I have a plane with normal Z+. Constructed Width - 3D - In tells me "Math failed. Make sure that the areas of the inputs overlap." Any ideas? 

PLN3       =FEAT/PLANE,CARTESIAN,TRIANGLE
            THEO/<0.0077,3.6373,-0.4381>,<0,0,1>
            ACTL/<0.0077,3.6373,-0.4381>,<0,0,1>
            MEAS/PLANE,12
              HIT/BASIC,NORMAL,<0.7345,2.8009,-0.4393>,<0,0,1>,<0.7345,2.8009,-0.4393>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.1372,3.1103,-0.4394>,<0,0,1>,<1.1372,3.1103,-0.4394>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.8622,3.3907,-0.4389>,<0,0,1>,<0.8622,3.3907,-0.4389>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.8744,3.8481,-0.439>,<0,0,1>,<0.8744,3.8481,-0.439>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.1022,4.2159,-0.4393>,<0,0,1>,<1.1022,4.2159,-0.4393>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.7284,4.4898,-0.439>,<0,0,1>,<0.7284,4.4898,-0.439>,USE THEO=YES
              MOVE/POINT,NORMAL,<0.7301,4.4901,0.4984>
              MOVE/POINT,NORMAL,<-0.6193,4.4784,0.5005>
              HIT/BASIC,NORMAL,<-0.6868,4.4312,-0.4385>,<0,0,1>,<-0.6868,4.4312,-0.4385>,USE THEO=YES
              HIT/BASIC,NORMAL,<-1.0599,4.351,-0.4382>,<0,0,1>,<-1.0599,4.351,-0.4382>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.9681,3.7784,-0.4381>,<0,0,1>,<-0.9681,3.7784,-0.4381>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.8811,3.429,-0.4355>,<0,0,1>,<-0.8811,3.429,-0.4355>,USE THEO=YES
              HIT/BASIC,NORMAL,<-1.0716,3.0342,-0.4355>,<0,0,1>,<-1.0716,3.0342,-0.4355>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.6783,2.7679,-0.4362>,<0,0,1>,<-0.6783,2.7679,-0.4362>,USE THEO=YES
            ENDMEAS/
            MOVE/POINT,NORMAL,<-0.6767,2.7682,0.4246>
PLN4       =FEAT/PLANE,CARTESIAN,TRIANGLE
            THEO/<0.0229,3.6141,0>,<0,0,1>
            ACTL/<0.0229,3.6141,0>,<0,0,1>
            MEAS/PLANE,8
              HIT/BASIC,NORMAL,<-0.3579,3.0653,0>,<0,0,1>,<-0.3579,3.0653,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.6069,3.6415,0>,<0,0,1>,<-0.6069,3.6415,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.4311,4.0664,0>,<0,0,1>,<-0.4311,4.0664,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.0132,4.2275,0>,<0,0,1>,<0.0132,4.2275,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.4672,4.042,0>,<0,0,1>,<0.4672,4.042,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.6088,3.666,0>,<0,0,1>,<0.6088,3.666,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.4477,3.1581,0>,<0,0,1>,<0.4477,3.1581,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.0425,3.0458,0>,<0,0,1>,<0.0425,3.0458,0>,USE THEO=YES
            ENDMEAS/
PLN5       =FEAT/PLANE,CARTESIAN,TRIANGLE,NO
            THEO/<0.0229,3.6141,0>,<0,0,-1>
            ACTL/<0.0229,3.6141,0>,<0,0,-1>
            CONSTR/PLANE,REV,PLN4

  • First plane says it's -.4381, change all your hits to be the same. 

    PLN3       =FEAT/PLANE,CARTESIAN,TRIANGLE
            THEO/<0.0077,3.6373,-0.4381>,<0,0,1>
            ACTL/<0.0077,3.6373,-0.4381>,<0,0,1>
            MEAS/PLANE,12
              HIT/BASIC,NORMAL,<0.7345,2.8009[COLOR=#FF0000],-0.4381[/COLOR]>,<0,0,1>,<0.7345,2.8009,-0.4393>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.1372,3.1103[COLOR=#FF0000],-[/COLOR][COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<1.1372,3.1103,-0.4394>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.8622,3.3907[COLOR=#FF0000],-[/COLOR][COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<0.8622,3.3907,-0.4389>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.8744,3.8481[COLOR=#FF0000],-0[/COLOR][COLOR=#ff0000].4381[/COLOR]>,<0,0,1>,<0.8744,3.8481,-0.439>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.1022,4.2159[COLOR=#FF0000],-[/COLOR][COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<1.1022,4.2159,-0.4393>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.7284,4.4898,-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<0.7284,4.4898,-0.439>,USE THEO=YES
              MOVE/POINT,NORMAL,<0.7301,4.4901,0.4984>
              MOVE/POINT,NORMAL,<-0.6193,4.4784,0.5005>
              HIT/BASIC,NORMAL,<-0.6868,4.4312,-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<-0.6868,4.4312,-0.4385>,USE THEO=YES
              HIT/BASIC,NORMAL,<-1.0599,4.351.-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<-1.0599,4.351,-0.4382>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.9681,3.7784,-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<-0.9681,3.7784,-0.4381>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.8811,3.429,-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<-0.8811,3.429,-0.4355>,USE THEO=YES
              HIT/BASIC,NORMAL,<-1.0716,3.0342,-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<-1.0716,3.0342,-0.4355>,USE THEO=YES
              HIT/BASIC,NORMAL,<-0.6783,2.7679,-[COLOR=#ff0000]0.4381[/COLOR]>,<0,0,1>,<-0.6783,2.7679,-0.4362>,USE THEO=YES
            ENDMEAS/
  • Thanks for noticing that, I was just taking rough hits and didn't think to change them. Unfortunately that did not fix the issue.
  • in reply to JacobCheverie
    You might try 2D since the 2 planes are at different locations one shows in the X direction .0077 and the other is .0229, the same with the Y direction, or clean those up also. Probably why it won't work
  • in reply to JacobCheverie
    2D won't work with planes, and this is a datum. Cleaning up the position didn't change anything.
  • If your planes don't match then this is what your constructed width is try to do. which won't work. Your hits don't match, nor does your planes. Make your opposing planes match. Try Auto Planes also

  • I went ahead and made two auto planes. Nominals are the same up to the difference in height (Z). Flipped one by using constructed reverse plane. Same error when trying to construct a width.

    It is an issue with reverse plane used for the width. When I flip the actual vectors of one of the planes (as if I could actually measure the part this way) the width constructs fine. Just not when I involve reverse plane...
  • I think it's just because a reverse plane doesn't contain hits, so it's an infinite plane, and you can't construct a width with it...
    Just my opinion...
  • in reply to JEFMAN
    I think you're right. I will have to raise the part so that I can get under it. I was just trying to avoid extra rotations. Thanks
  • in reply to JEFMAN
    Yeah just tried that got the same error, when I created the hits it worked.
  • Construct Width won't work on anything that doesn't contain points such as construct reverse plane. You can try to do a workaround by constructing generic points and plugging in the xyzijk of your leveling plane but add in a *-1 on the vector to flip it then construct plane using those generic points. This will allow the construct width feature to work.

    DISCLAIMER: I actually haven't done any live testing of the above method. Haven't had the need. Only tried it in an offline theoretical situation. So triple check your results!
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