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Having trouble with an alignment

mgj513
I'm trying to run a program, but I am having trouble with the manual alignment. After I do the manual alignment, the X and Z planes seem to align fine, but I'm having an issue with the Y plane. The triangles for the features line up fine on the X and Z planes on my model, but not the Y plane. That triangle is lined up at an angle, almost perpendicular to the plane. The part is set up with the A datum facing up, the B datum facing the front, and the C datum facing the left. I'm not sure what I'm doing wrong. I did not make this program, I'm only running it. Any help would be appreciated as I'm fairly new to this.

Here's the alignment code:

MODE/MANUAL
PLN43 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<423.151,5.294,118.8992>,<1,0,0>
ACTL/<16.0501,15.4477,-25.2336>,<-0.0012161,-0.0035246,0.999993>
MEAS/PLANE,4
HIT/BASIC,NORMAL,<423.151,9.7727,119.9541>,<1,0,0>,<20 .4472,16.5123,-25.2222>,USE THEO=YES
HIT/BASIC,NORMAL,<423.151,6.5616,118.115>,<1,0,0>,<17. 302,14.6626,-25.237>,USE THEO=YES
HIT/BASIC,NORMAL,<423.151,3.6986,119.4274>,<1,0,0>,<14 .4867,15.9948,-25.2367>,USE THEO=YES
HIT/BASIC,NORMAL,<423.151,1.143,118.1004>,<1,0,0>,<11. 9643,14.6211,-25.2384>,USE THEO=YES
ENDMEAS/
PLN44 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<423.011,4.8205,117.9503>,<0,0.0033451,-0.9999944>
ACTL/<15.6279,14.4506,-25.3096>,<0.0006071,-0.0418502,-0.9991237>
MEAS/PLANE,4
HIT/BASIC,NORMAL,<423.0401,0.6384,117.9363>,<0,0.00334 51,-0.9999944>,<11.4265,14.3896,-25.3096>,USE THEO=YES
HIT/BASIC,NORMAL,<422.9986,3.536,117.946>,<0,0.0033451 ,-0.9999944>,<14.1521,14.4292,-25.3096>,USE THEO=YES
HIT/BASIC,NORMAL,<423.0015,6.2199,117.955>,<0,0.003345 1,-0.9999944>,<17.0844,14.4721,-25.3096>,USE THEO=YES
HIT/BASIC,NORMAL,<423.0039,8.8876,117.9639>,<0,0.00334 51,-0.9999944>,<19.8486,14.5114,-25.3095>,USE THEO=YES
ENDMEAS/
PLN45 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<423.3828,0.135,118.7816>,<0,-1,0>
ACTL/<10.916,15.2595,-24.9973>,<-0.9999332,-0.0115001,0.0011613>
MEAS/PLANE,4
HIT/BASIC,NORMAL,<423.021,0.135,118.1357>,<0,-1,0>,<10.9233,14.5876,-25.3228>,USE THEO=YES
HIT/BASIC,NORMAL,<423.0137,0.135,119.3576>,<0,-1,0>,<10.9079,15.9373,-25.3228>,USE THEO=YES
HIT/BASIC,NORMAL,<423.7614,0.135,119.3822>,<0,-1,0>,<10.9089,15.9012,-24.6718>,USE THEO=YES
HIT/BASIC,NORMAL,<423.7351,0.135,118.2508>,<0,-1,0>,<10.9239,14.6118,-24.6718>,USE THEO=YES
ENDMEAS/
A1 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN43
ALIGNMENT/TRANS,ZAXIS,PLN43
ALIGNMENT/ROTATE,YMINUS,TO,PLN44,ABOUT,ZPLUS
ALIGNMENT/TRANS,YAXIS,PLN44
ALIGNMENT/TRANS,XAXIS,PLN45
ALIGNMENT/TRANS,YAXIS,PLN44
ALIGNMENT/TRANS,ZAXIS,PLN43
ALIGNMENT/END
MODE/DCC
CLEARP/ZPLUS,1,ZPLUS,0,ON
PLN46 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<5.1776,0.9517,0>,<0,0,1>
ACTL/<4.6301,1.9256,-0.0003>,<0.0010232,0.0014577,0.9999984>
MEAS/PLANE,4
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,<9.5806,1.9509,0>,<0,0,1>,<9.0154,3.0 005,-0.0065>,USE THEO=YES
HIT/BASIC,NORMAL,<6.4933,0.1485,0>,<0,0,1>,<5.9596,1.1 452,-0.0004>,USE THEO=YES
HIT/BASIC,NORMAL,<3.637,1.4947,0>,<0,0,1>,<3.0805,2.44 2,0.0006>,USE THEO=YES
HIT/BASIC,NORMAL,<0.9994,0.2127,0>,<0,0,1>,<0.4654,1.1 148,0.0054>,USE THEO=YES
ENDMEAS/
PLN47 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<5.0938,0,-0.1359>,<0,-1,0>
ACTL/<4.5627,0.9731,-0.1355>,<0.0172533,-0.9995023,0.0264114>
MEAS/PLANE,4
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,<0.543,0,-0.1369>,<0,-1,0>,<0.0133,0.894,-0.1306>,USE THEO=YES
HIT/BASIC,NORMAL,<3.7315,0,-0.134>,<0,-1,0>,<3.2013,0.9489,-0.1312>,USE THEO=YES
HIT/BASIC,NORMAL,<6.9319,0,-0.1307>,<0,-1,0>,<6.4012,1.004,-0.1313>,USE THEO=YES
HIT/BASIC,NORMAL,<9.1686,0,-0.1419>,<0,-1,0>,<8.6375,1.0426,-0.1449>,USE THEO=YES
ENDMEAS/
PLN48 =FEAT/PLANE,CARTESIAN,TRIANGLE
THEO/<0,0.8373,0.2192>,<-0.9999944,0.0033451,0>
ACTL/<-0.5438,1.7223,0.2247>,<-0.9998986,-0.0138768,0.0032097>
MEAS/PLANE,4
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,<-0.0022,0.2028,-0.129>,<-0.9999944,0.0033451,0>,<-0.536,1.0867,-0.1225>,USE THEO=YES
HIT/BASIC,NORMAL,<0.002,1.4324,-0.1328>,<-0.9999944,0.0033451,0>,<-0.5531,2.3162,-0.1282>,USE THEO=YES
HIT/BASIC,NORMAL,<0.0019,1.4066,0.5244>,<-0.9999944,0.0033451,0>,<-0.552,2.2914,0.5291>,USE THEO=YES
HIT/BASIC,NORMAL,<-0.0018,0.3072,0.6143>,<-0.9999944,0.0033451,0>,<-0.5367,1.1923,0.6207>,USE THEO=YES
ENDMEAS/
A2 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,PLN46
ALIGNMENT/TRANS,ZAXIS,PLN46
ALIGNMENT/ROTATE,YMINUS,TO,PLN47,ABOUT,ZPLUS
ALIGNMENT/TRANS,YAXIS,PLN47
ALIGNMENT/TRANS,XAXIS,PLN48
ALIGNMENT/END​
  • Good day,

    that's a good one.

    First of all, your theoretical values are not zeroed, they were probably probed by hand and now have the values of your machine system​.
    I mean your theoretical values dont match your alignment, for example "PLN43" facing THEO XPLUS but aligned to ZPLUS
    That's not really a problem, just a adwise.

    Secondly, there is a problem with your actual measurments.
    PLN43 and PLN44 are parallel, pointing to ZPlus and to ZMinus. I can only assume that it was probed in the wrong order?

    you can see that here
    the plane "PLN44" according to measured values facing to ZMinus but is aligned to YMinus
    "ALIGNMENT/ROTATE,YMINUS,TO,PLN44,ABOUT,ZPLUS​"

    (in addition, a plane only need 3 points)
  • I would suggest you start over / make your own program. Be aware of work plane! CAD or no CAD ? Part to machine ?
  • your vectors aren't mimicking how you are saying the part is set up. For instance the first plane (43) has an IJK of 1,0,0. If your A datum is facing up and down, then it should be 0,0,1. If you're in MCS. Same with your other planes. Are you on a horizontal machine by chance?
  • your vectors aren't mimicking how you are saying the part is set up. For instance the first plane (43) has an IJK of 1,0,0. If your A datum is facing up and down, then it should be 0,0,1. If you're in MCS. Same with your other planes. Are you on a horizontal machine by chance?

    What do you mean by horizontal machine? The part is rectangular. Plane 43 is the facing up and down like you said. Plane 44 is facing the front toward me, in the Y direction. Plane 45 is facing left in the X direction.
  • in reply to mgj513
    There is a horizontal arm machine that "i think" had z+ going front to back of the machine is why i asked. Instead of a bridge machine like most.
  • Lets just start with plane43. If you are in the MCS and took a plane straight down on to the table or part, your vector IJK would be closer to 0,0,1. Yours is showing 1,0,0 like you are taking a plane in the X direction. After creating the manual plane, are you opening it back up and editing the vector to the direction you want? because your z value hits look right.
    Attached Files
  • The Z is going up and down on my machine. I'm not doing anything after running the manual alignment. I just know its wrong because when it tries to take the hits for the DCC mode its way off. It doesn't recognize where the part is. Could it be because when the model was imported into PC-DMIS it was oriented the wrong way? What I mean is that If I orient the part in PC-DMIS the same way I'm placing it on the machine and before I do any of the alignment, it shows the x vector pointing up, the y vector pointing to the right, and the z vector pointing toward the back.
  • in reply to mgj513
    then you need to either 'manipulate' the model (transform, but not all industries allow that) or you need to F5 and set the machine/cad axis so the machine uses Z+ as X+, etc.
  • in reply to mgj513
    As Matthew said, checked F5, did the programer use his own XYZ , rather than the machine XYZ
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