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After inspecting a few parts the points on the CAD shift/move around on the CAD.

ProbFlex
Hi,

Lately, this has been happening, and I don’t know why.

After inspecting a few parts, the points on the CAD shift/move around on the CAD. I am using an iterative alignment.
i Feel silly asking but has this happened to anyone, or why is it happening? 

SKIP =LABEL/
C4 =COMMENT/INPUT,NO,FULL SCREEN=NO,
"SERIAL NUMBER"
ASSIGN/SN=C4.INPUT
STATS/ON,DATAPAGE+,,OFFLINE=YES
RECORD=DIMENSION,TRACE,FEATURE,FCF PROFILE,
TRACEFIELD/DISPLAY=NO,REPORT=NO,DISPLAY MESSAGE=New Trace ; JOB NUMBER : N52384
TRACEFIELD/DISPLAY=NO,REPORT=NO,DISPLAY MESSAGE=New Trace ; SERIAL NUMBER : C4.INPUT
FLY/ON
FASTPROBEMODE/ON
MOVESPEED/ 425
TOUCHSPEED/ 3
ITR_PNT1 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.0202,9.6975,0.5038>,<-0.9562512,0.0186043,0.2919547>
ACTL/<-0.0205,9.6975,0.5036>,<-0.9562512,0.0186043,0.2919547>
TARG/<-0.0202,9.6975,0.5038>,<-0.9562512,0.0186043,0.2919547>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
ITR_PNT2 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.2256,6.1515,-0.5>,<-0.9983838,-0.008735,0.0561565>
ACTL/<-0.2254,6.1515,-0.5002>,<-0.9983838,-0.008735,0.0561565>
TARG/<-0.2256,6.1515,-0.5>,<-0.9983838,-0.008735,0.0561565>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
ITR_PNT3 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.3341,2.0783,0.5052>,<-0.9974083,0.0430655,0.0576365>
ACTL/<-0.3341,2.0783,0.505>,<-0.9974083,0.0430655,0.0576365>
TARG/<-0.3341,2.0783,0.5052>,<-0.9974083,0.0430655,0.0576365>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
ITR_PNT4 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.8703,0.7369,0>,<-0.0871557,0.9961947,-0.0000004>
ACTL/<-0.8702,0.7371,0>,<-0.0871557,0.9961947,-0.0000004>
TARG/<-0.8703,0.7369,0>,<-0.0871557,0.9961947,-0.0000004>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
ITR_PNT5 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.0348,1.0649,1.1338>,<0.0000001,0.029408,0.999567 5>
ACTL/<-0.0346,1.0651,1.1338>,<0.0000001,0.029408,0.999567 5>
TARG/<-0.0348,1.0649,1.1338>,<0.0000001,0.029408,0.999567 5>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
ITR_PNT6 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<0.152,10.5127,0.6712>,<0.0000001,0.0447896,0.99 89 964>
ACTL/<0.1521,10.5127,0.6711>,<0.0000001,0.0447896,0.9 98 9964>
TARG/<0.152,10.5127,0.6712>,<0.0000001,0.0447896,0.99 89 964>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
A1         =ALIGNMENT/START,RECALL:RGH_A3,LIST=YES
              ALIGNMENT/ITERATE
                PNT TARGET RAD=0.01,START LABEL=,FIXTURE TOL=0,ERROR LABEL=
                MEAS ALL FEAT=NO,LEVEL AXIS=XAXIS,ROTATE AXIS=ZAXIS,ORIGIN AXIS=YAXIS
              LEVEL=ITR_PNT1,ITR_PNT2,ITR_PNT3,,
              ROTATE=ITR_PNT5,ITR_PNT6,,
              ORIGIN=ITR_PNT4,,
            ALIGNMENT/END
CLEARP/ZPLUS,1.5,ZPLUS,0,OFF
MOVE/CLEARPLANE
PNT1 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.2676,-1.233,-0.1793>,<-0.6460157,-0.6311847,-0.4292663>
ACTL/<-0.2056,-1.1613,-0.1443>,<-0.6460157,-0.6311847,-0.4292663>
TARG/<-0.2676,-1.233,-0.1793>,<-0.4637985,-0.8839508,-0.0593461>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
PNT2 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.3726,-0.8559,-0.1618>,<-0.9172444,0,-0.3983249>
ACTL/<-0.2603,-0.8538,-0.1289>,<-0.9172444,0,-0.3983249>
TARG/<-0.3726,-0.8559,-0.1618>,<-0.9974792,-0.05237,-0.0478811>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
PNT3 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.2989,-0.8661,-0.2751>,<-0.7358684,0,-0.6771245>
ACTL/<-0.2279,-0.8652,-0.2152>,<-0.7358684,0,-0.6771245>
TARG/<-0.2989,-0.8661,-0.2751>,<-0.8925628,-0.0675264,-0.4458384>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
PNT4 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.6245,-0.5108,-0.3642>,<-0.4160222,-0.8785537,-0.2346678>
ACTL/<-0.5953,-0.4607,-0.3467>,<-0.4160222,-0.8785537,-0.2346678>
TARG/<-0.6245,-0.5108,-0.3642>,<-0.1419954,-0.9895013,-0.026915>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
PNT5 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-1.098,0.075,0.5156>,<-0.8004995,-0.4684826,0.3737975>
ACTL/<-1.0159,0.1099,0.469>,<-0.8004995,-0.4684826,0.3737975>
TARG/<-1.098,0.075,0.5156>,<-0.7568698,0.0608489,0.6507269>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
PNT6 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-1.0929,0.0042,0.1277>,<-0.0871521,-0.9961531,0.0091439>
ACTL/<-1.0892,0.0241,0.1303>,<-0.0871521,-0.9961531,0.0091439>
TARG/<-1.0929,0.0042,0.1277>,<-0.0452946,-0.9972984,0.05783>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
PNT7 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-0.9509,0.0131,-0.6409>,<-0.3287015,-0.9197569,-0.214482>
ACTL/<-0.9287,0.0354,-0.6259>,<-0.3287015,-0.9197569,-0.214482>
TARG/<-0.9509,0.0131,-0.6409>,<-0.0588313,-0.9978335,-0.0294486>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
PNT8 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<-1.1373,0.5955,0.4635>,<-0.9219012,0.0959886,0.3753457>
ACTL/<-1.0469,0.5881,0.4098>,<-0.9219012,0.0959886,0.3753457>
TARG/<-1.1373,0.5955,0.4635>,<-0.6165628,0,0.7873057>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
TIP/T1A0B0, SHANKIJK=-0.0002, 0, 1, ANGLE=0.0033
MOVE/CLEARPLANE
PNT9 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<0.3432,-1.1834,-0.0948>,<0.8351247,-0.4998306,-0.2296433>
ACTL/<0.4301,-1.2376,-0.0768>,<0.8351247,-0.4998306,-0.2296433>
TARG/<0.3432,-1.1834,-0.0948>,<0.8527401,-0.5223355,-0.0000809>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
PNT10 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<0.5705,-0.5183,0.4196>,<0.302545,-0.9295854,0.2105647>
ACTL/<0.6979,-0.4458,0.517>,<0.302545,-0.9295854,0.2105647>
TARG/<0.5705,-0.5183,0.4196>,<0.7970385,0,0.6039284>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
PNT11 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<0.397,-0.7978,-0.0864>,<0.9771399,0,-0.2125974>
ACTL/<0.5213,-0.7978,-0.0779>,<0.9771399,0,-0.2125974>
TARG/<0.397,-0.7978,-0.0864>,<0.9991688,0,-0.0407646>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
PNT12 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<0.4062,-0.789,0.0066>,<0.9998678,0,0.0162591>
ACTL/<0.4062,-0.789,0.0066>,<0.0871525,-0.9961579,0.0085898>
TARG/<0.4062,-0.789,0.0066>,<0.0871525,-0.9961579,0.0085898>
SNAP=NO
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
MOVE/CLEARPLANE
Parents
  • I can see your inspection points are moving. I was reading your nominal values side by side, and it looks like they are all different. Here's what could've happened, based on what I've seen. You changed your iterative alignment, maybe the point locations or the number of features you want to use. When you do that, you get a popup message that asks of you want to change the nominals for everything past your updated alignment. You should ALWAYS click no. If you click yes it'll shift your nominals just a little bit. Its an easy mistake to make, I've done it myself. Also, you can use as many points as you want to do an iterative alignment, you aren't limited to 3-2-1. I've used up to a 20 points when I was measuring castings to create iterative alignments.
  • in reply to MikeD6
    Iterative alignments will loop automatically if you set them up to. There is a checkbox for a "Measure all always" and a box for max iterations, the default value is 3. That's typically enough. Is there anything special about the alignment points you're choosing, like they're a datum target or something?
Reply
  • in reply to MikeD6
    Iterative alignments will loop automatically if you set them up to. There is a checkbox for a "Measure all always" and a box for max iterations, the default value is 3. That's typically enough. Is there anything special about the alignment points you're choosing, like they're a datum target or something?
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