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true position of holes not working right.... help?

I'm doing something wrong here and not sure what it is. Wondered if you guys might be able to help me out.
STARTUP =ALIGNMENT/START,RECALL:USE_PART_SETUP,LIST=YES
ALIGNMENT/END
MODE/MANUAL
FORMAT/TEXT,OPTIONS, ,HEADINGS,SYMBOLS,SD;NOM,TOL,MEAS,DEV,OUTTOL, ,
LOADPROBE/4MM_BALL_615L_4D
TIP/TIP1, SHANKIJK=0, 0, 1, ANGLE=0
PLN1 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,NONE,LEAST_SQR
THEO/<311.1999,-134.8891,125.885>,<0,0,1>
ACTL/<-10.6231,-25.3068,14.678>,<-0.0012376,0.0041415,0.9999907>
TARG/<311.1999,-134.8891,125.885>,<0,0,1>
ANGLE VEC=<1,0,0>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=2,NUMROWS=2
SPACER=0
SHOW HITS=NO
PLN2 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,NONE,LEAST_SQR
THEO/<311.705,-135.0023,124.6302>,<0,-1,0>
ACTL/<-9.4192,-25.9663,12.3943>,<0.9289078,-0.3702947,0.0034893>
TARG/<311.705,-135.0023,124.6302>,<0,-1,0>
ANGLE VEC=<1,0,0>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=2,NUMROWS=2
SPACER=0
SHOW HITS=NO
CYL1 =FEAT/CONTACT/CYLINDER/DEFAULT,CARTESIAN,IN,FIXED_RAD
THEO/<310.1247,-134.1023,122.235>,<0,0,1>,1.0 025,0.65
ACTL/<-10.2402,-25.6106,14.4098>,<-0.0650979,-0.0054909,0.9978638>,1.0025,0.65
TARG/<310.1247,-134.1023,122.235>,<0,0,1>
START ANG=0,END ANG=360
ANGLE VEC=<1,0,0>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=3,NUMLEVELS=2,DEPTH=0,END OFFSET=0,PITCH=0
SAMPLE METHOD=SAMPLE_FEATURE
SAMPLE FEATURE=PLN1
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO
LIN1 =FEAT/LINE,CARTESIAN,UNBOUNDED,NO
THEO/<311.4525,-135.0023,125.885>,<1,0,0>
ACTL/<-9.3943,-25.8822,14.6819>,<0.3703058,0.928903 7,-0.0033888>
CONSTR/LINE,INTOF,PLN1,PLN2
CIR1 =FEAT/CIRCLE,CARTESIAN,OUT,NO
THEO/<310.1247,-134.1023,125.885>,<0,0,1>,1.0 025
ACTL/<-10.2578,-25.6121,14.6797>,<-0.0650979,-0.0054909,0.9978638>,1.0025
CONSTR/CIRCLE,INTOF,CYL1,PLN1
A1 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/ROTATE,XPLUS,TO,LIN1,ABOUT,ZPLUS
ALIGNMENT/TRANS,YAXIS,CIR1
ALIGNMENT/TRANS,XAXIS,CIR1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/END
PLN3 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,NONE,LEAST_SQR
THEO/<-1.5917,0.9,-1.5111>,<0,1,0>
ACTL/<-0.0318,0.8998,-2.2604>,<0.0000361,0.9999997,-0.0008271>
TARG/<-1.5917,0.9,-1.5111>,<0,1,0>
ANGLE VEC=<-1,0,0>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=2,NUMROWS=2
SPACER=0
SHOW HITS=NO
PLN4 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,NONE,LEAST_SQR
THEO/<-1.8917,-0.1576,-0.0709>,<-0.1736482,0,0.9848078>
ACTL/<-1.7992,-0.2975,-0.0538>,<-0.1721993,0.0010791,0.9850615>
TARG/<-1.8917,-0.1576,-0.0709>,<-0.1736482,0,0.9848078>
ANGLE VEC=<0.9848078,0,0.1736482>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=2,NUMROWS=2
SPACER=0
SHOW HITS=NO
PLN5 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,NONE,LEAST_SQR
THEO/<1.865,-0.1932,-0.0662>,<0.1736482,0,0.9848078&g t;
ACTL/<1.7915,0.083,-0.0524>,<0.1744341,0.0008077,0.98466 85>
TARG/<1.865,-0.1932,-0.0662>,<0.1736482,0,0.9848078&g t;
ANGLE VEC=<0.9848078,0,-0.1736482>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=2,NUMROWS=2
SPACER=0
SHOW HITS=NO

[COLOR=#FF0000]CYL2 =FEAT/CONTACT/CYLINDER/DEFAULT,CARTESIAN,IN,FIXED_RAD
THEO/<2,-0.9,-0.75>,<0,-1,0>,0.5015,1.8
ACTL/<1.9985,-0.9,-0.7478>,<-0.0001875,-0.999827,0.018598>,0.5015,1.8
TARG/<2,-0.9,-0.75>,<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=3,NUMLEVELS=2,DEPTH=0,END OFFSET=0,PITCH=0
SAMPLE METHOD=SAMPLE_FEATURE
SAMPLE FEATURE=NONE
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO
CYL3 =FEAT/CONTACT/CYLINDER/DEFAULT,CARTESIAN,IN,FIXED_RAD
THEO/<1.5,-0.9,-3.65>,<0,-1,0>,0.5015,1.8
ACTL/<1.4977,-0.8999,-3.648>,<-0.0002088,-0.99965,0.0264531>,0.5015,1.8
TARG/<1.5,-0.9,-3.65>,<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=3,NUMLEVELS=2,DEPTH=0,END OFFSET=0,PITCH=0
SAMPLE METHOD=SAMPLE_FEATURE
SAMPLE FEATURE=NONE
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO
CYL4 =FEAT/CONTACT/CYLINDER/DEFAULT,CARTESIAN,IN,FIXED_RAD
THEO/<-1.5,-0.9,-3.65>,<0,-1,0>,0.5015,1.8
ACTL/<-1.5039,-0.9,-3.6485>,<0.0009411,-0.9999496,0.0099942>,0.5015,1.8
TARG/<-1.5,-0.9,-3.65>,<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=3,NUMLEVELS=2,DEPTH=0,END OFFSET=0,PITCH=0
SAMPLE METHOD=SAMPLE_FEATURE
SAMPLE FEATURE=NONE
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO
CYL5 =FEAT/CONTACT/CYLINDER/DEFAULT,CARTESIAN,IN,FIXED_RAD
THEO/<-2,-0.9,-0.75>,<0,-1,0>,0.5015,1.8
ACTL/<-2.0036,-0.9028,-0.7531>,<0.0014633,-0.999998,0.0013621>,0.5015,1.8
TARG/<-2,-0.9,-0.75>,<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=3,NUMLEVELS=2,DEPTH=0,END OFFSET=0,PITCH=0
SAMPLE METHOD=SAMPLE_FEATURE
SAMPLE FEATURE=PLN2
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO[/COLOR]


The results are coming in way out of tolerance and I know that they should not be. Mic'd the cylinders and they are in tolerance. The distance dimensions could be off slightly but nowhere near as far as the results are saying.

Attached Files
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  • your results are always going to suck, because you use the least amount of hits possible. That means that your features are going to massively impacted by any amount of part error.

    Use more hits than the minimum!!!!

    "well, how many hits, Colin?"

    Probe your circle with your guesstimate. Now probe it again. and again! at least 10x.

    Those circles shouldn't vary by more than the accuracy of the arm. Else you're using too few hits.

    After awhile, you get more of a feel for it.
Reply
  • your results are always going to suck, because you use the least amount of hits possible. That means that your features are going to massively impacted by any amount of part error.

    Use more hits than the minimum!!!!

    "well, how many hits, Colin?"

    Probe your circle with your guesstimate. Now probe it again. and again! at least 10x.

    Those circles shouldn't vary by more than the accuracy of the arm. Else you're using too few hits.

    After awhile, you get more of a feel for it.
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