Issues with measuring holes at 90 degrees.

I've never been able to get this to work. Everything works great when I'm measuring holes level to the surface plate, but as soon as I articulate the probe to A90B0, A90B90, or any other combination, all of my holes come out at least .010" shifted from the actual values.

I'm guessing it's something to do with my alignment, but it seems like I've tried everything. I've used the normal level, created a plane on that 90deg surface and leveled to that, articulated the probe first before measuring the plane and then leveling to that, and I'm just stuck and don't know how to get this to work. Can't find any other forum posts relating to this problem.

The main issue here is I'm forced to re-fixture the part 6 different times and write 6 different programs just to check every hole in every face. It's extremely time consuming and I'm hoping someone has an easy solution that I'm completely missing.

I can write a quick program just showing the issue if that helps.

Parents

0 metrology_dept117 10 months ago

Here is my code for everyone curious:

DMISMN/'AXS83016 HOLES',05.3
$$ PCD_PART_PROGRAM: PC-DMIS generated DMIS file
$$ REV NUMBER : E
$$ SER NUMBER :
$$ STATS COUNT : 1

UNITS/INCH,ANGDEC
INCLUD/DMIS,'PCD_DMIS_DEFINES.DMI'

D(STARTUP)=DATSET/MCS

MODE/MAN

FEDRAT/POSVEL,MMPS,100

V(L1)=VFORM/NOM,ACT,DEV,AMT

SNSMNT/XVEC,0,-1,0,ZVEC,0,0,1,MNTLEN,0,0,-3.031
DMESW/COMAND,'LOADPROBE/2BY20'
S(T1A0B0)=SNSDEF/PROBE,INDEX,POL,0,0,0,0,-1,3.268,0.079

SNSLCT/SA(T1A0B0)

F(PLN1)=FEAT/PLANE,CART,0.303,0.338,0.192,0,0,1
MEAS/PLANE,F(PLN1),3
PTMEAS/CART,1.75,1.126,0.192,0,0,1
PTMEAS/CART,1.276,-1.051,0.192,0,0,1
PTMEAS/CART,-2.118,0.939,0.192,0,0,1
ENDMES

RECALL/DA(STARTUP)
DATDEF/FA(PLN1),DAT(A)
D(A1_1)=DATSET/DAT(A),ZDIR
D(A1_2)=TRANS/ZORIG,FA(PLN1)
D(A1)=TRANS/XORIG,0.0
F(LIN1)=FEAT/LINE,UNBND,CART,-2.146,-1.997,-0.183,1,0,0,0,-1,0
MEAS/LINE,F(LIN1),2
PTMEAS/CART,-2.146,-1.998,-0.179,0,-1,0
PTMEAS/CART,2.194,-1.998,-0.187,0,-1,0
ENDMES

RECALL/DA(A1)
D(A2_1)=ROTATE/ZAXIS,FA(LIN1),XDIR
D(A2_2)=TRANS/YORIG,FA(LIN1)
D(A2)=TRANS/XORIG,0.0
F(PNT1)=FEAT/POINT,CART,-3,2.373,-0.139,-1,0,0
MEAS/POINT,F(PNT1),1
PTMEAS/CART,-3,2.373,-0.139,-1,0,0
ENDMES

RECALL/DA(A2)
D(A3_1)=TRANS/XORIG,FA(PNT1)
D(A3)=TRANS/XORIG,0.0
MODE/AUTO

DMESW/COMAND,'CLEARP/ZPLUS,0.25,ZPLUS,0,ON'

F(PLN2)=FEAT/PLANE,CART,3.234,1.788,0,0,0,1
MEAS/PLANE,F(PLN2),12
DMESW/COMAND,'MOVE/CLEARPLANE'
PTMEAS/CART,5.346,3.556,0,0,0,1
PTMEAS/CART,5.292,2.105,0,0,0,1
PTMEAS/CART,5.069,0.462,0,0,0,1
PTMEAS/CART,4.293,0.851,0,0,0,1
PTMEAS/CART,4.764,2.858,0,0,0,1
PTMEAS/CART,3.777,1.782,0,0,0,1
PTMEAS/CART,3.373,0.323,0,0,0,1
PTMEAS/CART,2.065,2.083,0,0,0,1
PTMEAS/CART,1.962,0.604,0,0,0,1
PTMEAS/CART,0.82,0.508,0,0,0,1
PTMEAS/CART,1.51,3.512,0,0,0,1
PTMEAS/CART,0.54,2.812,0,0,0,1
ENDMES

F(LIN2)=FEAT/LINE,UNBND,CART,0.664,0,-0.141,1,0,0,0,-1,0
MEAS/LINE,F(LIN2),4
DMESW/COMAND,'MOVE/CLEARPLANE'
PTMEAS/CART,0.664,0,-0.151,0,-1,0
PTMEAS/CART,1.983,0,-0.153,0,-1,0
PTMEAS/CART,3.746,0,-0.118,0,-1,0
PTMEAS/CART,5.328,0,-0.142,0,-1,0
ENDMES

F(LIN3)=FEAT/LINE,UNBND,CART,0,0.608,-0.112,0,1,0,-1,0,0
MEAS/LINE,F(LIN3),3
DMESW/COMAND,'MOVE/CLEARPLANE'
PTMEAS/CART,0,0.608,-0.107,-1,0,0
PTMEAS/CART,0,1.603,-0.126,-1,0,0
PTMEAS/CART,0,3.292,-0.103,-1,0,0
ENDMES

RECALL/DA(STARTUP)
DATDEF/FA(PLN2),DAT(A)
D(A4_1)=DATSET/DAT(A),ZDIR
D(A4_2)=TRANS/ZORIG,FA(PLN2)
D(A4_3)=ROTATE/ZAXIS,FA(LIN2),XDIR
D(A4_4)=TRANS/YORIG,FA(LIN2)
D(A4_5)=TRANS/XORIG,FA(LIN3)
D(A4)=TRANS/XORIG,0.0
DMESW/COMAND,'MOVE/CLEARPLANE'

SNSMNT/XVEC,0,-1,0,ZVEC,0,0,1,MNTLEN,0,0,-3.031
DMESW/COMAND,'LOADPROBE/1BY20CYLINDER'
S(T1A90B-90)=SNSDEF/PROBE,INDEX,POL,90,-90,-1,0,0,5.039,0.059

SNSLCT/SA(T1A90B-90)

GOTO/CART,2.603,-0.769,0.361

DMESW/COMAND,'MOVE/CLEARPLANE'

F(CIR1)=FEAT/CIRCLE,INNER,CART,3,0,-0.222,0,-1,0,0.118
CALL/M(PCD_AUTO_CIRCLE_607),(CIR1),3,0,-0.222,0,-1,0,'THICKNESS_NONE',0,$
'NO','STRAIGHT','LEAST_SQR','NO','BOTH',0.394,(),(),(),'NO','DISABLED',$
'NO',0,0,0,0,0,0,360,0.079,1,0,0,0,-1,0,0,-1,0,'3.059,0.079,-0.222,-1,0,0,$
3.018,0.079,-0.165,-0.3050649,0,-0.9523316,2.953,0.079,-0.186,0.7991279,0,$
-0.601161,2.952,0.079,-0.256,0.8174179,0,0.5760451,3.018,0.079,-0.278,$
-0.3050649,0,0.9523316'

T(LOC1__X)=TOL/CORTOL,XAXIS,-0.005,0.005

T(LOC1__Z)=TOL/CORTOL,ZAXIS,-0.005,0.005

T(LOC1__D)=TOL/DIAM,-0.005,0.005

OUTPUT/FA(CIR1),TA(LOC1__X),TA(LOC1__Z),TA(LOC1__D)
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0 WilliamL 10 months ago in reply to metrology_dept117

Is this in DMIS Mode? I can somewhat understand it, but can you change to Command Mode, and add it into a code block using the Insert > Code at the bottom of a reply
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0 WilliamL 10 months ago in reply to metrology_dept117

Is this in DMIS Mode? I can somewhat understand it, but can you change to Command Mode, and add it into a code block using the Insert > Code at the bottom of a reply
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0 metrology_dept117 10 months ago in reply to WilliamL

PART NAME  : AXS83016 HOLES
REV NUMBER : E
SER NUMBER :
STATS COUNT : 1
 
STARTUP    =ALIGNMENT/START,RECALL:USE_PART_SETUP,LIST=YES
            ALIGNMENT/END
            MODE/MANUAL
            MOVESPEED/ 100
            FORMAT/TEXT,OPTIONS, ,HEADINGS,SYMBOLS, ;NOM,TOL,MEAS,DEV,OUTTOL, ,
            LOADPROBE/2BY20
            TIP/T1A0B0, SHANKIJK=0, 0, 1, ANGLE=0
PLN1       =FEAT/PLANE,CARTESIAN,TRIANGLE
            THEO/<0.303,0.338,0.192>,<0,0,1>
            ACTL/<12.5,11.474,-2.135>,<0.0026072,0.0003248,0.9999965>
            MEAS/PLANE,3
              HIT/BASIC,NORMAL,<1.75,1.126,0.192>,<0,0,1>,<11.936,11.917,-2.134>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.276,-1.051,0.192>,<0,0,1>,<13.095,11.917,-2.137>,USE THEO=YES
              HIT/BASIC,NORMAL,<-2.118,0.939,0.192>,<0,0,1>,<12.468,10.589,-2.134>,USE THEO=YES
            ENDMEAS/
A1         =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
              ALIGNMENT/LEVEL,ZPLUS,PLN1
              ALIGNMENT/TRANS,ZAXIS,PLN1
            ALIGNMENT/END
LIN1       =FEAT/LINE,CARTESIAN,UNBOUNDED
            THEO/<-2.146,-1.997,-0.183>,<1,0,0>
            ACTL/<14.152,10.596,-0.119>,<-0.0027556,0.9999962,0>
            MEAS/LINE,2,ZPLUS
              HIT/BASIC,NORMAL,<-2.146,-1.998,-0.179>,<0,-1,0>,<14.152,10.596,-0.119>,USE THEO=YES
              HIT/BASIC,NORMAL,<2.194,-1.998,-0.187>,<0,-1,0>,<14.149,11.635,-0.119>,USE THEO=YES
            ENDMEAS/
A2         =ALIGNMENT/START,RECALL:A1,LIST=YES
              ALIGNMENT/ROTATE,XPLUS,TO,LIN1,ABOUT,ZPLUS
              ALIGNMENT/TRANS,YAXIS,LIN1
            ALIGNMENT/END
PNT1       =FEAT/POINT,CARTESIAN
            THEO/<-3,2.373,-0.139>,<-1,0,0>
            ACTL/<7.05,1.332,-0.131>,<-1,0,0>
            MEAS/POINT,1,WORKPLANE
              HIT/BASIC,NORMAL,<-3,2.373,-0.139>,<-1,0,0>,<7.05,1.332,-0.131>,USE THEO=YES
            ENDMEAS/
A3         =ALIGNMENT/START,RECALL:A2,LIST=YES
              ALIGNMENT/TRANS,XAXIS,PNT1
            ALIGNMENT/END
            MODE/DCC
            CLEARP/ZPLUS,0.25,ZPLUS,0,ON
PLN2       =FEAT/PLANE,CARTESIAN,TRIANGLE
            THEO/<3.234,1.788,0>,<0,0,1>
            ACTL/<3.234,1.788,0.001>,<0.0000908,-0.0002629,1>
            MEAS/PLANE,12
              MOVE/CLEARPLANE
              HIT/BASIC,NORMAL,<5.346,3.556,0>,<0,0,1>,<5.346,3.556,0.001>,USE THEO=YES
              HIT/BASIC,NORMAL,<5.292,2.105,0>,<0,0,1>,<5.292,2.105,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<5.069,0.462,0>,<0,0,1>,<5.069,0.462,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<4.293,0.851,0>,<0,0,1>,<4.293,0.851,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<4.764,2.858,0>,<0,0,1>,<4.764,2.858,0.001>,USE THEO=YES
              HIT/BASIC,NORMAL,<3.777,1.782,0>,<0,0,1>,<3.777,1.781,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<3.373,0.323,0>,<0,0,1>,<3.373,0.322,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<2.065,2.083,0>,<0,0,1>,<2.066,2.083,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.962,0.604,0>,<0,0,1>,<1.962,0.603,0>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.82,0.508,0>,<0,0,1>,<0.821,0.508,0.001>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.51,3.512,0>,<0,0,1>,<1.51,3.511,0.001>,USE THEO=YES
              HIT/BASIC,NORMAL,<0.54,2.812,0>,<0,0,1>,<0.54,2.812,0.001>,USE THEO=YES
            ENDMEAS/
LIN2       =FEAT/LINE,CARTESIAN,UNBOUNDED
            THEO/<0.664,0,-0.141>,<1,0,0>
            ACTL/<0.664,0,-0.141>,<1,-0.0000451,0>
            MEAS/LINE,4,ZPLUS
              MOVE/CLEARPLANE
              HIT/BASIC,NORMAL,<0.664,0,-0.151>,<0,-1,0>,<0.664,0,-0.151>,USE THEO=YES
              HIT/BASIC,NORMAL,<1.983,0,-0.153>,<0,-1,0>,<1.983,0,-0.153>,USE THEO=YES
              HIT/BASIC,NORMAL,<3.746,0,-0.118>,<0,-1,0>,<3.746,0,-0.118>,USE THEO=YES
              HIT/BASIC,NORMAL,<5.328,0,-0.142>,<0,-1,0>,<5.329,0,-0.142>,USE THEO=YES
            ENDMEAS/
LIN3       =FEAT/LINE,CARTESIAN,UNBOUNDED
            THEO/<0,0.608,-0.112>,<0,1,0>
            ACTL/<0,0.607,-0.112>,<0.0002027,1,0>
            MEAS/LINE,3,ZPLUS
              MOVE/CLEARPLANE
              HIT/BASIC,NORMAL,<0,0.608,-0.107>,<-1,0,0>,<0,0.607,-0.107>,USE THEO=YES
              HIT/BASIC,NORMAL,<0,1.603,-0.126>,<-1,0,0>,<0,1.603,-0.126>,USE THEO=YES
              HIT/BASIC,NORMAL,<0,3.292,-0.103>,<-1,0,0>,<0.001,3.292,-0.103>,USE THEO=YES
            ENDMEAS/
A4         =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
              ALIGNMENT/LEVEL,ZPLUS,PLN2
              ALIGNMENT/TRANS,ZAXIS,PLN2
              ALIGNMENT/ROTATE,XPLUS,TO,LIN2,ABOUT,ZPLUS
              ALIGNMENT/TRANS,YAXIS,LIN2
              ALIGNMENT/TRANS,XAXIS,LIN3
            ALIGNMENT/END
            MOVE/CLEARPLANE
            LOADPROBE/1BY20CYLINDER
            MOVE/CLEARPLANE
            TIP/T1A90B-90, SHANKIJK=-0.013, -1, 0.002, ANGLE=179.99
            MOVE/POINT,NORMAL,<2.603,-0.769,0.361>
            MOVE/CLEARPLANE
CIR1       =FEAT/CONTACT/CIRCLE/DEFAULT,CARTESIAN,IN,LEAST_SQR
            THEO/<3,0,-0.222>,<0,-1,0>,0.118
            ACTL/<2.988,0,-0.218>,<0,-1,0>,0.102
            TARG/<3,0,-0.222>,<0,-1,0>
            START ANG=0,END ANG=360
            ANGLE VEC=<1,0,0>
            DIRECTION=CCW
            SHOW FEATURE PARAMETERS=NO
            SHOW CONTACT PARAMETERS=YES
              NUMHITS=5,DEPTH=0.079,PITCH=0
              SAMPLE METHOD=SAMPLE_HITS
              SAMPLE HITS=0,SPACER=0
              AVOIDANCE MOVE=BOTH,DISTANCE BEFORE=0.394,DISTANCE AFTER=0.394,DIRECTION=ALONG FEATURE VECTOR
              FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
            SHOW HITS=NO
DIM LOC1= LOCATION OF CIRCLE CIR1  UNITS=IN ,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH  HALF ANGLE=NO
AX    NOMINAL       +TOL       -TOL       MEAS        DEV     OUTTOL
X        3.000      0.005      0.005      2.988     -0.012      0.007 <--------
Z       -0.222      0.005      0.005     -0.218      0.004      0.000 --------#
D        0.118      0.005      0.005      0.102     -0.016      0.011 <--------
END OF DIMENSION LOC1