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I need help with measuring distance at an angle.


Hello everyone,
I need advice...
The operator says that the parts are good, the angle is perfect (20 degrees), I get a different result on the CMM after measuring.
Am I making some mistake? I only have one year of experience...
I don't like CON1 (position on the x-axis). CON1 is made up of 8 points to see only the average of the angle and i location (print doesn't call out)).
I would like to add codes but i don't know how to do it...





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This is how i created:

WORKPLANE/ZPLUS
MOVE/POINT,NORMAL,<17.88762,5.57913,-0.19795>
TIP/T1A90B90, SHANKIJK=0.99979, -0.02011, -0.00449, ANGLE=-90.78014
PNT14 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<5.64,0,-0.225>,<0.3420223,0,-0.9396918>
ACTL/<5.63419,0.00011,-0.20894>,<0.3420223,0,-0.9396918>
TARG/<5.64,0,-0.225>,<0.3420223,0,-0.9396918>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
AVOIDANCE MOVE=NO
SHOW HITS=YES
HIT/BASIC,<5.64,0,-0.225>,<0.3420223,0,-0.9396918>,<5.64,0,-0.225>
ENDMEAS/
PNT15 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<5.8,0,-0.18>,<0.3420223,0,-0.9396918>
ACTL/<5.78983,0.00012,-0.15185>,<0.3420223,0,-0.9396918>
TARG/<5.8,0,-0.18>,<0.3420223,0,-0.9396918>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
AVOIDANCE MOVE=NO
SHOW HITS=YES
HIT/BASIC,<5.8,0,-0.18>,<0.3420223,0,-0.9396918>,<5.8,0,-0.18>
ENDMEAS/
LIN4 =FEAT/LINE,CARTESIAN,UNBOUNDED,NO
THEO/<5.80559,0,-0.1782>,<-0.9626509,0,-0.2707456>
ACTL/<5.78964,0.00012,-0.15191>,<-0.9388199,-0.000083,-0.3444084>
CONSTR/LINE,BFRE,3D,PNT15,PNT14,,
OUTLIER_REMOVAL/OFF,3
FILTER/OFF,WAVELENGTH=0
WORKPLANE/YMINUS
DIM ANGL3= 2D ANGLE TO LINE LIN4 FROM XAXIS ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL +TOL -TOL MEAS DEV OUTTOL
A 20.00000 0.00000 0.00000 20.14569 0.14569 0.14569 -------->​

A5 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN2_Z
ALIGNMENT/ROTATE_CIRCLE,YMINUS,TO,CYL1_AA,AND,PNT2,ABOUT,ZPL US
ALIGNMENT/TRANS,ZAXIS,PLN2_Z
ALIGNMENT/TRANS,XAXIS,CYL1_AA
ALIGNMENT/TRANS,YAXIS,CYL1_AA
ALIGNMENT/ROTATE_OFFSET,-20,ABOUT,YPLUS
ALIGNMENT/END
WORKPLANE/XPLUS
PLN4 =FEAT/PLANE,CARTESIAN,OUTLINE,NO
THEO/<0,0,0>,<1,0,0>
ACTL/<0,0,0>,<1,0,0>
CONSTR/PLANE,ALIGN,WORKPLANE
PNT11 =FEAT/POINT,CARTESIAN,NO
THEO/<0,0,-1.74828>,<-0.9971964,0,0.0748284>
ACTL/<0,-0.00032,-2.13663>,<-0.9999968,-0.000083,-0.0025427>
CONSTR/POINT,PIERCE,PLN4,LIN4
DIM LOC4_LIN4= LOCATION OF POINT PNT11 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH HALF ANGLE=NO
AX NOMINAL +TOL -TOL MEAS DEV OUTTOL
X 0.00000 0.01969 0.01969 0.00000 0.00000 0.00000 ----#----
Y 0.00000 0.01969 0.01969 -0.00032 -0.00032 0.00000 ----#----
Z -2.12000 0.00200 0.00200 -2.13663 -0.01663 0.01463 <--------
END OF DIMENSION LOC4_LIN4​

Attached Files
Parents
  • Rotate about the correct axis by the 20° basic then tolerance your distance. Make sure that you are in the correct workplane when doing this if you want reference distance. The print calls for profile and that is all you need to do is report profile, the software will do what is needed
  • Matthew D. Hoedeman, I told him the same thing, i.e. the person who set the parts on the machine.
    I have 20 years of experience with various machines, only with CMM I have 1 year of experience. I like to make sure that whatever I do, I do it right.
    Did you see my question about the code in the alignment?
Reply
  • Matthew D. Hoedeman, I told him the same thing, i.e. the person who set the parts on the machine.
    I have 20 years of experience with various machines, only with CMM I have 1 year of experience. I like to make sure that whatever I do, I do it right.
    Did you see my question about the code in the alignment?
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