Running Iterative Alignments Automatically

[acgarcia]

Getting ready to work with iterative alignments. The part is partially machined and there isn't' enough to constrain the 6dof so i'm going to have to probe the unmachined forging body. I understand the operator has to take the 6 points in manual mode and then the alignment begins automatically. I prefer my operators to not use the jojbox. Just put the part in an start executing.

How would I start a program to where the CMM would automatically do the iterative alignment without the operator probing the 6 points? Do I need to run the iterative alignment for the first time and then save the alignment?

[ChairsWithWheels]

If the part is going to be consistently in the same spot (Same rotation and location) You could just F3 the manual hits and have it automatically recall the first alignment. If it's not consistently in the same place on the CMM, I'd do a readpoint somewhere.

[Michael_Swe]

You can Always do somthing like this ... get a quatstion if alignmet is done or not... if one press YES (JA). it skips the alignment

C1         =COMMENT/YESNO,NO,FULL SCREEN=NO,AUTO-CONTINUE=NO,
            Är uppriktning gjord?
            Om JA sätt i ny bit..
            Om NEJ Följ anvisningar och gör uppriktning
            IF_GOTO/C1.INPUT == "JA",GOTO = L2
            IF_GOTO/C1.INPUT == "NEJ",GOTO = L1
L1         =LABEL/
            MOVE/POINT,NORMAL,<2899.006,-837.557,1030.263>
            MOVE/POINT,NORMAL,<2020.322,-820.976,1891.295>
SFR1       =FEAT/CONTACT/SPHERE/DEFAULT,CARTESIAN,OUT,LEAST_SQR
            THEO/<2005.641,-1161.232,1896.517>,<0,1,0>,20
            ACTL/<867.825,358.922,-964.473>,<0.0000477,0.0000118,1>,20.061
            TARG/<2005.641,-1161.232,1896.517>,<0,1,0>
            START ANGLE 1=304,END ANG 1=196
            START ANGLE 2=8,END ANG 2=163
            ANGLE VEC=<-1,0,0>
            REPORT VEC=<0,0,1>
            SHOW FEATURE PARAMETERS=YES
              SURFACE=THICKNESS_NONE,0
              MEASURE MODE=NOMINALS
              RMEAS=NONE,NONE,NONE
              AUTO WRIST=NO
              GRAPHICAL ANALYSIS=NO
              FEATURE LOCATOR=NO,NO,""
            SHOW CONTACT PARAMETERS=YES
              NUMHITS=7,NUMROWS=3
              SAMPLE HITS=0
              AVOIDANCE MOVE=BEFORE,DISTANCE=10
            SHOW HITS=NO
            MOVE/POINT,NORMAL,<2028.39,-911.949,1910.926>
            MOVE/POINT,NORMAL,<2004.375,-911.983,1041.427>
SFR2       =FEAT/CONTACT/SPHERE/DEFAULT,CARTESIAN,OUT,LEAST_SQR
            THEO/<2003.838,-1161.372,1044.603>,<0,1,0>,20
            ACTL/<15.876,358.354,-964.581>,<0.0000477,0.0000118,1>,20.059
            TARG/<2003.838,-1161.372,1044.603>,<0,1,0>
            START ANGLE 1=304,END ANG 1=196
            START ANGLE 2=8,END ANG 2=163
            ANGLE VEC=<-1,0,0>
            REPORT VEC=<0,0,1>
            SHOW FEATURE PARAMETERS=YES
              SURFACE=THICKNESS_NONE,0
              MEASURE MODE=NOMINALS
              RMEAS=NONE,NONE,NONE
              AUTO WRIST=NO
              GRAPHICAL ANALYSIS=NO
              FEATURE LOCATOR=NO,NO,""
            SHOW CONTACT PARAMETERS=YES
              NUMHITS=7,NUMROWS=3
              SAMPLE HITS=0
              AVOIDANCE MOVE=BEFORE,DISTANCE=10
            SHOW HITS=NO
            MOVE/POINT,NORMAL,<2004.374,-911.983,1041.427>
            MOVE/POINT,NORMAL,<2899.005,-911.983,1030.265>
SFR3       =FEAT/CONTACT/SPHERE/DEFAULT,CARTESIAN,OUT,LEAST_SQR
            THEO/<2906.851,-1161.364,1043.719>,<0,1,0>,20
            ACTL/<16.327,1261.397,-964.567>,<0.0000477,0.0000118,1>,20.064
            TARG/<2906.851,-1161.364,1043.719>,<0,1,0>
            START ANGLE 1=304,END ANG 1=196
            START ANGLE 2=8,END ANG 2=163
            ANGLE VEC=<-1,0,0>
            REPORT VEC=<0,0,1>
            SHOW FEATURE PARAMETERS=YES
              SURFACE=THICKNESS_NONE,0
              MEASURE MODE=NOMINALS
              RMEAS=NONE,NONE,NONE
              AUTO WRIST=NO
              GRAPHICAL ANALYSIS=NO
              FEATURE LOCATOR=NO,NO,""
            SHOW CONTACT PARAMETERS=YES
              NUMHITS=7,NUMROWS=3
              SAMPLE HITS=0
              AVOIDANCE MOVE=BEFORE,DISTANCE=10
            SHOW HITS=NO
A1         =ALIGNMENT/START,RECALL:START,LIST=YES
              ALIGNMENT/ITERATE
                PNT TARGET RAD=0.5,START LABEL=,FIXTURE TOL=0.1,ERROR LABEL=
                MEAS ALL FEAT=ALWAYS,MAX ITERATIONS=3,LEVEL AXIS=YAXIS,ROTATE AXIS=XAXIS,ORIGIN AXIS=ZAXIS
              LEVEL=SFR1,SFR2,SFR3,,
              ROTATE=SFR2,SFR1,,
              ORIGIN=SFR2,,
            ALIGNMENT/END
L2         =LABEL/
            MODE/DCC

[HAREK]

If the piece changes its position on the plate.? I guess he doesn't want to make a reference.

[HAREK]

I used a single point of reference. Touching a specific part of the piece and referencing it from a single point.