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How to measure concentric circles

xuantam91
Hi every one.

can you give me advise to checking concentric circles as below picture.

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  • I have successfully had loops inside of loops. i start with a manual alignment then dcc alignment on the fixture, or in this case the sheet the parts are made on, (this is outside the loops)
    outside loop-
    manual alignment
    dcc alignment
    loop 2 shift in y
    loop 1 shift in x
    inside the loop -
    dcc align to the part being measured - recalling the dcc alignment outside the loop
    measure part
    dimension part
    end loop 1
    end loop 2

    below is a cut down version of one of our parts that get made out of a sheet of plastic 5 parts by 6 parts 

    PLN1 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<-1.0734,-1.8814,0.2>,<0,0,1>
ACTL/<2.6488,4.1872,-29.6746>,<-0.0008808,-0.0003019,0.9999996>
MEAS/PLANE,3
HIT/BASIC,NORMAL,<-0.6958,-4.3291,0.2>,<0,0,1>,<3.04,1.7491,-29.675>,USE THEO=YES
HIT/BASIC,NORMAL,<-0.2143,-0.608,0.2>,<0,0,1>,<3.5505,5.4063,-29.6734>,USE THEO=YES
HIT/BASIC,NORMAL,<-2.31,-0.7069,0.2>,<0,0,1>,<1.3558,5.4063,-29.6754>,USE THEO=YES
ENDMEAS/
A3 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/END
LIN1 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<-2.59,-0.3814,0.2>,<0,-1,0>,<-1,0,0>,<0,0,1>,3.5
ACTL/<1.123,5.3968,0.2>,<-0.0004755,-0.9999999,0>,<-0.9999999,0.0004755,0>,<0,0,1>,3.6291
TARG/<-2.59,-0.3814,0.2>,<0,-1,0>,<-1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=BOTH,DISTANCE=0.1575
SHOW HITS=NO
A4 =ALIGNMENT/START,RECALL:A3,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/ROTATE,YMINUS,TO,LIN1,ABOUT,ZPLUS
ALIGNMENT/TRANS,XAXIS,LIN1
ALIGNMENT/END
LIN2 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<-2.0355,-4.761,0.2>,<1,0,0>,<0,-1,0>,<0,0,1>,1.61
ACTL/<0.3947,1.2457,0.2>,<1,-0.0000998,0>,<-0.0000998,-1,0>,<0,0,1>,1.8009
TARG/<-2.0355,-4.761,0.2>,<1,0,0>,<0,-1,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=BOTH,DISTANCE=0.1575
SHOW HITS=NO
A1 =ALIGNMENT/START,RECALL:A4,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/ROTATE,YMINUS,TO,LIN1,ABOUT,ZPLUS
ALIGNMENT/TRANS,YAXIS,LIN2
ALIGNMENT/TRANS,XAXIS,LIN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/END
L2_START_HERE=LABEL/
V3 =LOOP/START,ID=YES,NUMBER=6,START=1,SKIP=,,
OFFSET:XAXIS=0,YAXIS=4.961,ZAXIS=0,ANGLE=0
V2 =LOOP/START,ID=YES,NUMBER=5,START=1,SKIP=,,
OFFSET:XAXIS=2.79,YAXIS=0,ZAXIS=0,ANGLE=0
MODE/DCC
CLEARP/ZPLUS,0.25,ZPLUS,0.25,ON
PLN2 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<1.13,1.6808,0>,<0,0,1>
ACTL/<1.13,1.6807,0.0004>,<0.0010088,0.0006329,0.999999 3>
MEAS/PLANE,3
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,<1.9245,0.5157,0>,<0,0,1>,<1.9246,0.5 156,0.0004>,USE THEO=YES
HIT/BASIC,NORMAL,<0.7223,0.3128,0>,<0,0,1>,<0.7221,0.3 128,0.0017>,USE THEO=YES
HIT/BASIC,NORMAL,<0.7432,4.2138,0>,<0,0,1>,<0.7433,4.2 138,-0.0008>,USE THEO=YES
ENDMEAS/
MOVE/CLEARPLANE
LIN3 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<0,4.2641,0>,<0,-1,0>,<-1,0,0>,<0,0,1>,3.5
ACTL/<0.0001,4.264,0>,<-0.000026,-1,0>,<-1,0.000026,0>,<0,0,1>,3.5
TARG/<0,4.2641,0>,<0,-1,0>,<-1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
LIN4 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<0.6243,0,0>,<1,0,0>,<0,-1,0>,<0,0,1>,1.55
ACTL/<0.6243,0.0003,0>,<1,-0.0001078,0>,<-0.0001078,-1,0>,<0,0,1>,1.5502
TARG/<0.6243,0,0>,<1,0,0>,<0,-1,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
A5 =ALIGNMENT/START,RECALL:A1,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN2
ALIGNMENT/TRANS,ZAXIS,PLN2
ALIGNMENT/ROTATE,YMINUS,TO,LIN3,ABOUT,ZPLUS
ALIGNMENT/TRANS,XAXIS,LIN3
ALIGNMENT/TRANS,YAXIS,LIN4
ALIGNMENT/END
LIN9 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<2.3707,0.0307,0>,<0.7071068,0.7071068,0>,<0.70710 68,-0.7071068,0>,<0,0,1>,0.2665
ACTL/<2.3713,0.0304,0>,<0.7057502,0.7084607,0>,<0.70846 07,-0.7057502,0>,<0,0,1>,0.2665
TARG/<2.3707,0.0307,0>,<0.7071068,0.7071068,0>,<0.70710 68,-0.7071068,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
LIN7 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<2.59,0.4384,0>,<0,1,0>,<1,0,0>,<0,0,1>,3.757
ACTL/<2.5917,0.4385,0>,<-0.0000357,1,0>,<1,0.0000357,0>,<0,0,1>,3.757
TARG/<2.59,0.4384,0>,<0,1,0>,<1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
DIM 27= 2D DISTANCE FROM LINE LIN3 TO LINE LIN7 PAR TO XAXIS,NO_RADIUS UNITS=IN,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX NOMINAL +TOL -TOL MEAS DEV OUTTOL
M 2.5900 0.0050 0.0050 2.5917 0.0017 0.0000 -----#---
PRINT/REPORT,EXEC MODE=END,$
TO_FILE=ON,AUTO=28,AUTO OPEN REPORT=OFF,$
TO_PRINTER=OFF,COPIES=1,$
TO_DMIS_REPORT=OFF,FILE_OPTION=INDEX,FILENAME=,$
REPORT_THEORETICALS=NONE,REPORT_FEATURE_WITH_DIMEN SIONS=NO,$
TO_EXCEL_OUTPUT=ON,AUTO=3,FILENAME=C:\Users\Public \Documents\Hexagon\PC-DMIS\2018 R1\GDM\3000134\3000134 OP 1.XLSX,AUTO OPEN REPORT=OFF,$
PREVIOUS_RUNS=DELETE_INSTANCES
LOOP/END
LOOP/END
Reply
  • I have successfully had loops inside of loops. i start with a manual alignment then dcc alignment on the fixture, or in this case the sheet the parts are made on, (this is outside the loops)
    outside loop-
    manual alignment
    dcc alignment
    loop 2 shift in y
    loop 1 shift in x
    inside the loop -
    dcc align to the part being measured - recalling the dcc alignment outside the loop
    measure part
    dimension part
    end loop 1
    end loop 2

    below is a cut down version of one of our parts that get made out of a sheet of plastic 5 parts by 6 parts 

    PLN1 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<-1.0734,-1.8814,0.2>,<0,0,1>
ACTL/<2.6488,4.1872,-29.6746>,<-0.0008808,-0.0003019,0.9999996>
MEAS/PLANE,3
HIT/BASIC,NORMAL,<-0.6958,-4.3291,0.2>,<0,0,1>,<3.04,1.7491,-29.675>,USE THEO=YES
HIT/BASIC,NORMAL,<-0.2143,-0.608,0.2>,<0,0,1>,<3.5505,5.4063,-29.6734>,USE THEO=YES
HIT/BASIC,NORMAL,<-2.31,-0.7069,0.2>,<0,0,1>,<1.3558,5.4063,-29.6754>,USE THEO=YES
ENDMEAS/
A3 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/END
LIN1 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<-2.59,-0.3814,0.2>,<0,-1,0>,<-1,0,0>,<0,0,1>,3.5
ACTL/<1.123,5.3968,0.2>,<-0.0004755,-0.9999999,0>,<-0.9999999,0.0004755,0>,<0,0,1>,3.6291
TARG/<-2.59,-0.3814,0.2>,<0,-1,0>,<-1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=BOTH,DISTANCE=0.1575
SHOW HITS=NO
A4 =ALIGNMENT/START,RECALL:A3,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/ROTATE,YMINUS,TO,LIN1,ABOUT,ZPLUS
ALIGNMENT/TRANS,XAXIS,LIN1
ALIGNMENT/END
LIN2 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<-2.0355,-4.761,0.2>,<1,0,0>,<0,-1,0>,<0,0,1>,1.61
ACTL/<0.3947,1.2457,0.2>,<1,-0.0000998,0>,<-0.0000998,-1,0>,<0,0,1>,1.8009
TARG/<-2.0355,-4.761,0.2>,<1,0,0>,<0,-1,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=BOTH,DISTANCE=0.1575
SHOW HITS=NO
A1 =ALIGNMENT/START,RECALL:A4,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/ROTATE,YMINUS,TO,LIN1,ABOUT,ZPLUS
ALIGNMENT/TRANS,YAXIS,LIN2
ALIGNMENT/TRANS,XAXIS,LIN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/END
L2_START_HERE=LABEL/
V3 =LOOP/START,ID=YES,NUMBER=6,START=1,SKIP=,,
OFFSET:XAXIS=0,YAXIS=4.961,ZAXIS=0,ANGLE=0
V2 =LOOP/START,ID=YES,NUMBER=5,START=1,SKIP=,,
OFFSET:XAXIS=2.79,YAXIS=0,ZAXIS=0,ANGLE=0
MODE/DCC
CLEARP/ZPLUS,0.25,ZPLUS,0.25,ON
PLN2 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<1.13,1.6808,0>,<0,0,1>
ACTL/<1.13,1.6807,0.0004>,<0.0010088,0.0006329,0.999999 3>
MEAS/PLANE,3
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,<1.9245,0.5157,0>,<0,0,1>,<1.9246,0.5 156,0.0004>,USE THEO=YES
HIT/BASIC,NORMAL,<0.7223,0.3128,0>,<0,0,1>,<0.7221,0.3 128,0.0017>,USE THEO=YES
HIT/BASIC,NORMAL,<0.7432,4.2138,0>,<0,0,1>,<0.7433,4.2 138,-0.0008>,USE THEO=YES
ENDMEAS/
MOVE/CLEARPLANE
LIN3 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<0,4.2641,0>,<0,-1,0>,<-1,0,0>,<0,0,1>,3.5
ACTL/<0.0001,4.264,0>,<-0.000026,-1,0>,<-1,0.000026,0>,<0,0,1>,3.5
TARG/<0,4.2641,0>,<0,-1,0>,<-1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
LIN4 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<0.6243,0,0>,<1,0,0>,<0,-1,0>,<0,0,1>,1.55
ACTL/<0.6243,0.0003,0>,<1,-0.0001078,0>,<-0.0001078,-1,0>,<0,0,1>,1.5502
TARG/<0.6243,0,0>,<1,0,0>,<0,-1,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
A5 =ALIGNMENT/START,RECALL:A1,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN2
ALIGNMENT/TRANS,ZAXIS,PLN2
ALIGNMENT/ROTATE,YMINUS,TO,LIN3,ABOUT,ZPLUS
ALIGNMENT/TRANS,XAXIS,LIN3
ALIGNMENT/TRANS,YAXIS,LIN4
ALIGNMENT/END
LIN9 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<2.3707,0.0307,0>,<0.7071068,0.7071068,0>,<0.70710 68,-0.7071068,0>,<0,0,1>,0.2665
ACTL/<2.3713,0.0304,0>,<0.7057502,0.7084607,0>,<0.70846 07,-0.7057502,0>,<0,0,1>,0.2665
TARG/<2.3707,0.0307,0>,<0.7071068,0.7071068,0>,<0.70710 68,-0.7071068,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
LIN7 =FEAT/CONTACT/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<2.59,0.4384,0>,<0,1,0>,<1,0,0>,<0,0,1>,3.757
ACTL/<2.5917,0.4385,0>,<-0.0000357,1,0>,<1,0.0000357,0>,<0,0,1>,3.757
TARG/<2.59,0.4384,0>,<0,1,0>,<1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,DEPTH=0.0787
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0,INDENT1=0,INDENT2=0
AVOIDANCE MOVE=NO,DISTANCE=0.1575
SHOW HITS=NO
MOVE/CLEARPLANE
DIM 27= 2D DISTANCE FROM LINE LIN3 TO LINE LIN7 PAR TO XAXIS,NO_RADIUS UNITS=IN,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX NOMINAL +TOL -TOL MEAS DEV OUTTOL
M 2.5900 0.0050 0.0050 2.5917 0.0017 0.0000 -----#---
PRINT/REPORT,EXEC MODE=END,$
TO_FILE=ON,AUTO=28,AUTO OPEN REPORT=OFF,$
TO_PRINTER=OFF,COPIES=1,$
TO_DMIS_REPORT=OFF,FILE_OPTION=INDEX,FILENAME=,$
REPORT_THEORETICALS=NONE,REPORT_FEATURE_WITH_DIMEN SIONS=NO,$
TO_EXCEL_OUTPUT=ON,AUTO=3,FILENAME=C:\Users\Public \Documents\Hexagon\PC-DMIS\2018 R1\GDM\3000134\3000134 OP 1.XLSX,AUTO OPEN REPORT=OFF,$
PREVIOUS_RUNS=DELETE_INSTANCES
LOOP/END
LOOP/END
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