Features Not Sticking To Cad Model During DCC Alignment

[AvivasXYZ]

I extracted the CAD file, transformed the part to how it actually is sitting on the CMM, selected program mode and used the mouse to take hits on the top surface of the part to create a plane (z+), took hits on the I.D of part to create a circle (x&y - Datum B) and used the vision/camera capability on our Optiv 322 machine - (could not select program mode to create this feature - I’m assuming it’s because it’s using optics - however I did selected 2 lines - parallel to each other - on the CAD- vector lines are both Y-) to create a MidLine to construct Datum C.

I then did the same thing for the DCC Alignment (the only difference is that the plane (Z) is now on a lower feature which is my actual datum (A) [the plane used during manual alignment,was to take the hits easier/faster] and Datum B was then constructed as a cylinder.




My issues that I am currently having is:

During the DCC alignment, the lines I used to create Datum C (midline) are not close to where my manual hits were. Basically the hits I did during manual are not sticking to the CAD model, which in turn is affecting the DCC alignment even though the rotate feature is aligned to Y-.

I’m having the same issue with an angularity dimension which has to do with one of those widths (midline constructions)

All (3 other widths) that have an angularity dimensions are good, just that specific one is completely off.


Please let me know if you might have came across this!
Any help is appreciated!
Thank you all in advance.

[bfire85]

Did you execute the manual alignment? Is your vision and tactile probes linked together via calibration?

Post some code.

[AvivasXYZ]

Yes, i already executed the manual alignment. Vision & Tactile have been linked via calibration (Probe-offset).

*Update i removed the mid-line and constructed a width instead, the actual part lines are actually sticking tothe CAD lines/model (for the most part), However, the angularity issue still remains -now it's for all of them.... i decided to delete them all (all the angularity dimensions and its constrictions) and start over - just to re-clarify and/or possibly resurface any details i left out...
Lines 3-4 are on there for evaluation purposes only, so some item features might be throwing it out of sync per-say, however i only constructed 2 widths prior to completing all 4, just in case i find a solution on here.

Thanks in advance!

Anyways... heres the code:

[AvivasXYZ]

STARTUP =ALIGNMENT/START,RECALL:USE_PART_SETUP,LIST=YES
ALIGNMENT/END
MODE/MANUAL
MOVESPEED/ 50
TOUCHSPEED/ 3
MANRETRACT/0.005
FLY/ON
FORMAT/TEXT,OPTIONS, ,HEADINGS,SYMBOLS, ;NOM,TOL,MEAS,DEV,OUTTOL, ,
TEMPCOMP/METHOD = AUTOMATIC,MATERIAL = PVC,CTE=52
,SET WARNING LIMIT = TRUE,MINIMUM = 64.4,MAXIMUM = 76.6
,PART SENSOR NUM=DEFAULT,X SCALE= 74.078409,Y SCALE= 70.781299,Z SCALE= 72.511383,PART TEMP=70.244137
LOADPROBE/1X21_5STAR
TIP/TIP1, SHANKIJK=0, 0, 1, ANGLE=0

PLN1 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<0.029699,-0.218536,0.065>,<0,0,1>
ACTL/<1.467157,0.61888,-6.833253>,<-0.0013494,0.0023954,0.9999962>
MEAS/PLANE,3
HIT/BASIC,NORMAL,<-0.967883,0.022412,0.065>,<0,0,1>,<0.481027,0.86509 ,-6.835174>,USE THEO=YES
HIT/BASIC,NORMAL,<0.937309,0.228663,0.065>,<0,0,1>,<2. 409906,0.94259,-6.832757>,USE THEO=YES
HIT/BASIC,NORMAL,<0.119671,-0.906683,0.065>,<0,0,1>,<1.510538,0.04896,-6.83183>,USE THEO=YES
ENDMEAS/

A1 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN1
ALIGNMENT/TRANS,ZAXIS,PLN1
ALIGNMENT/END

CIR1_ =FEAT/CIRCLE,CARTESIAN,IN,LEAST_SQR
THEO/<0,0,-0.032676>,<0,0,1>,1.71
ACTL/<1.412981,1.015589,-0.033058>,<0,0,1>,1.711813
MEAS/CIRCLE,4,ZPLUS
HIT/BASIC,NORMAL,<-0.8532,0.055458,-0.042681>,<0.9978942,-0.0648632,0>,<0.559677,0.948325,-0.035093>,USE THEO=YES
HIT/BASIC,NORMAL,<0.849868,0.093537,-0.025379>,<-0.9939978,-0.1093999,0>,<2.248576,1.201146,-0.03682>,USE THEO=YES
HIT/BASIC,NORMAL,<0.102837,0.848793,-0.030901>,<-0.1202768,-0.9927404,0>,<1.363345,1.870009,-0.028108>,USE THEO=YES
HIT/BASIC,NORMAL,<-0.069448,-0.852175,-0.031741>,<0.0812259,0.9966957,0>,<1.41588,0.15972 9,-0.03221>,USE THEO=YES
ENDMEAS/

A2 =ALIGNMENT/START,RECALL:A1,LIST=YES
ALIGNMENT/TRANS,XAXIS,CIR1_
ALIGNMENT/TRANS,YAXIS,CIR1_
ALIGNMENT/END

TIP/TIP3, SHANKIJK=0, -1, 0, ANGLE=0
LIN1 =FEAT/LINE,CARTESIAN,UNBOUNDED
THEO/<-0.04,-1.177331,-0.607826>,<0,-1,0>
ACTL/<-0.013093,-1.185657,-0.616733>,<0.022071,-0.9997564,0>
MEAS/LINE,2,ZPLUS
HIT/BASIC,NORMAL,<-0.04,-1.177331,-0.605933>,<1,0,0>,<-0.013093,-1.185657,-0.616633>,USE THEO=YES
HIT/BASIC,NORMAL,<-0.04,-1.220194,-0.609719>,<1,0,0>,<-0.011945,-1.237623,-0.616834>,USE THEO=YES
ENDMEAS/

LIN2 =FEAT/LINE,CARTESIAN,UNBOUNDED
THEO/<0.04,-1.177906,-0.607447>,<0,-1,0>
ACTL/<0.067183,-1.175099,-0.616538>,<0.0271204,-0.9996322,0>
MEAS/LINE,2,ZPLUS
HIT/BASIC,NORMAL,<0.04,-1.177906,-0.609497>,<-1,0,0>,<0.067183,-1.175099,-0.616504>,USE THEO=YES
HIT/BASIC,NORMAL,<0.04,-1.217505,-0.605397>,<-1,0,0>,<0.068476,-1.222757,-0.616572>,USE THEO=YES
ENDMEAS/

WIDTH4 =FEAT/WIDTH,CARTESIAN,IN,LEAST_SQR,YES
THEO/<0,-1.198234,-0.607636>,<1,0,0>,0.08
MEAS/<0.027656,-1.205334,-0.616635>,<0.999703,0.024378,0>,0.080634
CONSTR/WIDTH,BFRE,LIN1,LIN2

A3 =ALIGNMENT/START,RECALL:A2,LIST=YES
ALIGNMENT/ROTATE,XPLUS,TO,WIDTH4,ABOUT,ZPLUS
ALIGNMENT/END

MODE/DCC
LOADPROBE/1X21_5STAR
TIP/TIP3, SHANKIJK=-0.003295, -0.999992, -0.002363, ANGLE=-0.090573
PNT1 =FEAT/POINT,CARTESIAN
THEO/<-0.077478,-1.205667,-0.672945>,<0,0,-1>
ACTL/<-0.077474,-1.205538,-0.673633>,<0,0,-1>
MEAS/POINT,1,WORKPLANE
HIT/BASIC,NORMAL,<-0.077478,-1.205667,-0.672945>,<0,0,-1>,<-0.077474,-1.205538,-0.673633>,USE THEO=YES

ENDMEAS/
TIP/TIP4, SHANKIJK=0.998437, -0.05589, -0.000654, ANGLE=0.396885
MOVE/POINT,NORMAL,<-2.526846,-0.407572,1.455542>

PNT2 =FEAT/POINT,CARTESIAN
THEO/<1.180787,-0.28672,-0.672945>,<0,0,-1>
ACTL/<1.180809,-0.286689,-0.67395>,<0,0,-1>
MEAS/POINT,1,WORKPLANE
HIT/BASIC,NORMAL,<1.180787,-0.28672,-0.672945>,<0,0,-1>,<1.180809,-0.286689,-0.67395>,USE THEO=YES
ENDMEAS/

TIP/TIP5, SHANKIJK=0.055893, 0.998413, 0.00689, ANGLE=0.037478
PNT3 =FEAT/POINT,CARTESIAN
THEO/<0.042327,1.213933,-0.672945>,<0,0,-1>
ACTL/<0.042207,1.213963,-0.672488>,<0,0,-1>
MEAS/POINT,1,WORKPLANE
HIT/BASIC,NORMAL,<0.042327,1.213933,-0.672945>,<0,0,-1>,<0.042207,1.213963,-0.672488>,USE THEO=YES

ENDMEAS/
PLNA =FEAT/PLANE,CARTESIAN,TRIANGLE,NO,LEAST_SQR
THEO/<0.381879,-0.092818,-0.672945>,<0,0,-1>
ACTL/<0.381864,-0.092768,-0.673357>,<-0.00062,0.000504,-0.9999997>
CONSTR/PLANE,BFRE,PNT1,PNT2,PNT3,,
OUTLIER_REMOVAL/OFF,3
FILTER/OFF,WAVELENGTH=0

A4 =ALIGNMENT/START,RECALL:A3,LIST=YES
ALIGNMENT/LEVEL,ZMINUS,PLNA
ALIGNMENT/TRANS,ZAXIS,PLNA
ALIGNMENT/END

LOADPROBE/3X50_VISION
TIP/TIP1, SHANKIJK=-0.001961, -0.002379, 0.999995, ANGLE=-2.963915
CYLB =FEAT/CONTACT/CYLINDER/ADAPTIVE_CYLINDER_CONCENTRIC_CIRCLE_SCAN,CARTESIAN ,IN,LEAST_SQR
THEO/<0,0,0.233945>,<0,0,1>,1.62,1.3175
ACTL/<-0.003144,0.000001,0.233945>,<-0.0003362,0.0003424,0.9999999>,1.622584,1.3175
TARG/<0,0,0.233945>,<0,0,1>
START ANG=0,END ANG=360
ANGLE VEC=<1,0,0>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO

A5 =ALIGNMENT/START,RECALL:A4,LIST=YES
ALIGNMENT/TRANS,XAXIS,CYLB
ALIGNMENT/TRANS,YAXIS,CYLB
ALIGNMENT/END

LOADPROBE/1X21_5STAR
TIP/TIP3, SHANKIJK=-0.003295, -0.999993, -0.001765, ANGLE=-0.079783
PREHIT/0.025
RETRACT/0.025
LIN5___ =FEAT/CONTACT/LINE/ADAPTIVE_LINEAR_SCAN,CARTESIAN,UNBOUNDED
THEO/<-0.04,-1.161732,0.07>,<0,-1,0>,<1,0,0>,<0,0,1>,0.061836
ACTL/<-0.038436,-1.161766,0.074043>,<0.0004492,-0.9999999,0>,<0.9999994,0.0004492,-0.0010368>,<0.0010368,0.0000005,0.9999995>,0.05909 8
TARG/<-0.04,-1.161732,0.07>,<0,-1,0>,<1,0,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO

LIN6___ =FEAT/CONTACT/LINE/ADAPTIVE_LINEAR_SCAN,CARTESIAN,UNBOUNDED
THEO/<0.04,-1.160748,0.07>,<0,-1,0>,<-1,0,0>,<0,0,-1>,0.07068
ACTL/<0.041956,-1.160713,0.073961>,<0.0007766,-0.9999997,0>,<-0.9999992,-0.0007766,0.0010368>,<-0.0010368,-0.0000008,-0.9999995>,0.065719
TARG/<0.04,-1.160748,0.07>,<0,-1,0>,<-1,0,0>,<0,0,-1>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
WIDTHC___ =FEAT/WIDTH,CARTESIAN,IN,LEAST_SQR,NO
THEO/<0.002394,-1.195339,0.070612>,<0.999995,0.003283,0>,0.079775
MEAS/<0.001761,-1.19254,0.056638>,<1,0.000636,0>,0.080413

CONSTR/WIDTH,BF,LIN5___,LIN6___
A6 =ALIGNMENT/START,RECALL:A5,LIST=YES
ALIGNMENT/ROTATE,XPLUS,TO,WIDTHC___,ABOUT,ZPLUS
ALIGNMENT/END

DATDEF/A,FEATURES=PLNA,,
DATDEF/B,FEATURES=CYLB,,
DATDEF/C,FEATURES=WIDTHC___,,
MOVE/POINT,NORMAL,<-0.015248,-1.679306,0.058943>
MOVE/POINT,NORMAL,<-0.016958,-1.689505,4.194036>

LOADPROBE/3X50_VISION
TIP/TIP1, SHANKIJK=-0.000413, -0.002466, 0.999997, ANGLE=-1.444855
PREHIT/0.1
RETRACT/0.1
PLN2 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,NONE,LEAST_SQR
THEO/<0,0,0.673>,<0,0,1>
ACTL/<0.000061,-0.000064,0.673409>,<-0.0007317,0.0003642,0.9999997>
TARG/<0,0,0.673>,<0,0,1>
ANGLE VEC=<0.9999946,-0.0032834,0>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO

CYL1_ =FEAT/CONTACT/CYLINDER/ADAPTIVE_CYLINDER_CONCENTRIC_CIRCLE_SCAN,CARTESIAN ,OUT,LEAST_SQR
THEO/<0,0,0.672945>,<0,0,1>,2.172,-0.559945
ACTL/<-0.000244,0.000514,0.672945>,<-0.0003176,0.0005448,0.9999998>,2.172954,-0.559945
TARG/<0,0,0.672945>,<0,0,1>
START ANG=0,END ANG=360
ANGLE VEC=<0.9999946,-0.0032834,0>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO

LIN3 =FEAT/VISION/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<0.977528,-0.61494,0.113>,<0.864379,-0.5028409,0>,<0.5028409,0.864379,0>,<0,0,1>,0.0779 69
ACTL/<0.981296,-0.609089,0.096246>,<0.8701179,-0.4928436,0>,<0.4928436,0.8701179,0>,<0.0006694,-0.0019241,0.9999979>,0.076953
TARG/<0.977528,-0.61494,0.113>,<0.864379,-0.5028409,0>,<0.5028409,0.864379,0>,<0,0,1>
SHOW FEATURE PARAMETERS=NO
SHOW_VISION_PARAMETERS=NO

LIN4 =FEAT/VISION/LINE/DEFAULT,CARTESIAN,UNBOUNDED
THEO/<1.018671,-0.546322,0.112991>,<0.864379,-0.5028409,-0.0000242>,<0.5028405,0.8643782,0.0013266>,<0.0006 694,-0.0019241,0.9999979>,0.073159
ACTL/<1.018671,-0.546322,0.112991>,<0.864379,-0.5028409,-0.0000242>,<0.5028405,0.8643782,0.0013266>,<0.0006 694,-0.0019241,0.9999979>,0.073159
TARG/<1.018671,-0.546322,0.112991>,<0.864379,-0.5028409,-0.0000242>,<0.5028405,0.8643782,0.0013266>,<0.0006 694,-0.0019241,0.9999979>
SHOW FEATURE PARAMETERS=NO
SHOW_VISION_PARAMETERS=NO

WIDTH1 =FEAT/WIDTH,CARTESIAN,IN,LEAST_SQR,NO
THEO/<1.030932,-0.599731,0.112995>,<0.502841,0.864379,0>,0.08
MEAS/<1.034346,-0.594043,0.050986>,<0.499465,0.866334,0>,0.078485
CONSTR/WIDTH,BF,LIN3,LIN4
FCFANGLRTY1 =ANGULARITY : WIDTH1
FEATCTRLFRAME/SHOWNOMS=YES,SHOWPARAMS=YES,SHOWEXPANDED=YES,
CADGRAPH=OFF,REPORTGRAPH=OFF,TEXT=OFF,MULT=1000.00 ,ARROWDENSITY=100,OUTPUT=BOTH,UNITS=IN,
STANDARDTYPE=ASME_Y14_5
DIMENSION/ANGULARITY,0.003,<MC>,C,<dat>,<dat>
NOTE/FCFANGLRTY1
FEATURES/WIDTH1,,
WIDTH1
ANGLE:NOM=59.811869

PREHIT/0.015
RETRACT/0.015
LOADPROBE/1X21_5STAR
TIP/TIP4, SHANKIJK=0.999687, -0.025015, -0.000717, ANGLE=0.110276

LIN5 =FEAT/CONTACT/LINE/ADAPTIVE_LINEAR_SCAN,CARTESIAN,UNBOUNDED
THEO/<1.139863,-0.043743,0.082396>,<0.9997746,-0.0032827,-0.0209739>,<0.0032834,0.9999946,0>,<-0.9999946,0.0032834,0>,0.069377
ACTL/<1.17455,-0.041636,0.080502>,<0.0001889,0.0575312,-0.9983437>,<0.003278,0.9983383,0.0575315>,<-0.9999946,0.0032834,0>,0.001379
TARG/<1.139863,-0.043743,0.082396>,<0.9997746,-0.0032827,-0.0209739>,<0.0032834,0.9999946,0>,<-0.9999946,0.0032834,0>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO

LIN6 =FEAT/CONTACT/LINE/ADAPTIVE_LINEAR_SCAN,CARTESIAN,UNBOUNDED
THEO/<1.140125,0.036257,0.055333>,<0.9860165,-0.0032375,0.166616>,<-0.0032834,-0.9999946,0>,<-0.9999946,0.0032834,0>,0.080763
ACTL/<1.17995,0.038586,0.055272>,<0.0000209,0.0063593 ,0 .9999798>,<-0.0032833,-0.9999744,0.0063593>,<-0.9999946,0.0032834,0>,0.013146
TARG/<1.140125,0.036257,0.055333>,<0.9860165,-0.0032375,0.166616>,<-0.0032834,-0.9999946,0>,<-0.9999946,0.0032834,0>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO

WIDTH5 =FEAT/WIDTH,CARTESIAN,IN,LEAST_SQR,NO
THEO/<1.197753,-0.001561,0.071352>,<0.003036,0.999995,0>,0.07967
MEAS/<1.19422,-0.001562,0.070973>,<0.00208,0.999998,0>,0.080281
CONSTR/WIDTH,BF,LIN5,LIN6

FCFANGLRTY2 =ANGULARITY : WIDTH5
FEATCTRLFRAME/SHOWNOMS=YES,SHOWPARAMS=YES,SHOWEXPANDED=YES,
CADGRAPH=OFF,REPORTGRAPH=OFF,TEXT=OFF,MULT=1000.00 ,ARROWDENSITY=100,OUTPUT=BOTH,UNITS=IN,
STANDARDTYPE=ASME_Y14_5
SIZE TOLERANCES/1,,0.08,0.003,-0.003
DIMENSION/ANGULARITY,0.003,<MC>,C,<dat>,<dat>
NOTE/FCFANGLRTY2
FEATURES/WIDTH5,,
WIDTH5
ANGLE:NOM=90

[Schlag]

Just a few notes here... having multiple ALIGNMENTS in manual mode does you nothing. I aslo have a tentency to keep it simple, with rotate to a width ? JUst manual check 1 line instead of 2 ? All you are doing is " telling the cmm " where the part is. Extra manual work is just that....Just check your features and create 1 alignment, On your DCC, I will use multiple alignments but all of them a are FULLY DEFINED. DCC MODE check plane, Then I just copy and rename my manual alignment, Change the recall, and change to the DCC plane for level and Z, Then the 2nd feature , again I will copy the previous alignment, Change the recall, and then change the feature name for Rotate and redefine my x-y's ( of course depending on your part that order changes ). When I am done my MAIN DCC ALIGNMENT will redfine ALL of the DCC features in 1 alignment. Probably a little OCD but I admit that.... WHat I did notice on a few of the lines is your vectors don't match the THEO /vs. ACTUALS ? I never use AUTO lines But on 5 and 6 something just doesn't look right. ? I have never done a combo of probing and vision so I dont know if that has anything to do with features not snapping to your model. If all your manual features are done from the model in manual mode, everything should line up ?

And yeah, I just got an ergonomic keyboard and Imnot going back and fixing errors !!

[AvivasXYZ]

Thanks for your input Schlag, I'm relativity new to PC-DMIS, so yes there is room for improvement. All the alignment features (Manual & DCC) were done on the model and tactile.
For the Vision portion, AUTO Features is the only way to construct features... so im forced to use an AUTO line.
Good luck with your new keyboard!

[Schlag]

Why do you feel an AUTO line is the only way to do constructions ? For some reason I never like the usage of them and in all my years of programming, I have never used 1. That being said, I do plenty of constructions.

[AvivasXYZ]

On vision, the only way to construct features (any features - for that matter) is by using AUTO features...

[Schlag]

Thought that was going to have something to do with it.