I'm measuring five circles that are equally spaced on the OD of a circular part. The first hole is directly in front of the operator and they're programmed counterclockwise. All holes are verified at .344 with pin gauges but the CMM is giving me very out-of-whack measurements. I adjusted the workplanes to be correct to the best of my knowledge (closest to nominal) but some are still very far from their actual size. This is my first program in which i've had to change work planes so I wouldn't be surprised if this is the issue.
MOVE/POINT,NORMAL,<3.7421052,-2.1865275,-1.3919337>
DIM 57_344DIA_HOLE1= LOCATION OF CIRCLE 344_HOLE1 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH HALF ANGLE=NO
AX NOMINAL +TOL -TOL MAX MIN DEV OUTTOL MEAS
D 0.3440000 0.0060000 0.0010000 0.3379373 0.3379373 0.0000000 0.0000000 0.3440000 -#-------
END OF DIMENSION 57_344DIA_HOLE1
DIM 57_344DIA_HOLE2= LOCATION OF CIRCLE 344_HOLE2 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH HALF ANGLE=NO
AX NOMINAL +TOL -TOL MAX MIN DEV OUTTOL MEAS
D 0.3440000 0.0060000 0.0010000 0.3414918 0.3395547 -0.0044453 0.0034453 0.3395547 <--------
END OF DIMENSION 57_344DIA_HOLE2
DIM 57_344DIA_HOLE3= LOCATION OF CIRCLE 344_HOLE3 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH HALF ANGLE=NO
AX NOMINAL +TOL -TOL MAX MIN DEV OUTTOL MEAS
D 0.3440000 0.0060000 0.0010000 0.7104610 0.7104610 0.0000000 0.0000000 0.3440000 -#-------
END OF DIMENSION 57_344DIA_HOLE3
DIM 57_344DIA_HOLE4= LOCATION OF CIRCLE 344_HOLE4 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH HALF ANGLE=NO
AX NOMINAL +TOL -TOL MAX MIN DEV OUTTOL MEAS
D 0.3440000 0.0060000 0.0010000 0.3457781 0.2677088 -0.0371429 0.0361429 0.3068571 <--------
END OF DIMENSION 57_344DIA_HOLE4
DIM 57_344DIA_HOLE5= LOCATION OF CIRCLE 344_HOLE5 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH HALF ANGLE=NO
AX NOMINAL +TOL -TOL MAX MIN DEV OUTTOL MEAS
D 0.3440000 0.0060000 0.0010000 0.2854986 0.2854986 0.0000000 0.0000000 0.3440000 -#-------
END OF DIMENSION 57_344DIA_HOLE5
Some of the dimensions have Max & Mins that are all over the place as well. Anyone have any insight on this?
yeah, all the calculations are done in the PLANE of the vector of the hole. 5 equal-spaced holes around the outside of a round shape, nope, at BEST one will have a 'square' vector, all the others will have 'wonky' vectors, not zeros and ones.
yeah, all the calculations are done in the PLANE of the vector of the hole. 5 equal-spaced holes around the outside of a round shape, nope, at BEST one will have a 'square' vector, all the others will have 'wonky' vectors, not zeros and ones.