Ok, I give up. Ideas Anyone?

**Matthew D. Hoedeman** · 09-18-2007, 03:12 PM

Originally posted by ag162 View Post

Ref my prev post for my situation:
Wrote prg
Ran fine for 3 parts
4th part, it gave an out of param error
Now the man align will not align with the part, it is like it is on an angle and will not square up

What I have done:
Restarted the comp and cmm
reselected the auto features to verify the vector didn't get corrupted
recal the probe
dbl chkd the feature id's making sure they match the ones in the align

I can't really give a sketch or pic, but the part has the a datum on a flat plane, the b & C are cut outs on a 90 deg surf. So I use trim points for the rotation and origin.
*This may be causing me the trouble* But it worked fine for 3 parts!!!!

Any Ideas?

A.Gore

Are you using surface sample hits for those trim points?
3-2-1 or iterative alignment?

**Don Ruggieri** · 09-18-2007, 03:15 PM

Can you at least post the front end of the program commands, from the edit window?

**ag162** · 09-18-2007, 03:22 PM

Ok, after several cussing eppisodes, it is running now. I will post the code after it runs this part. For whatever reason, the cad and the part got disoriented or corrupted. It ran the remeasure several times before correcting itself.
PC DEMON bit me!

A.Gore

**ag162** · 09-18-2007, 03:24 PM

Hey Matt,
These are 1 sample hit edge points with an iterative alignment. The dat A points are vector points.

A.Gore

**craiger_ny** · 09-18-2007, 03:25 PM

Originally posted by ag162 View Post

Ok, after several cussing eppisodes, it is running now. I will post the code after it runs this part. For whatever reason, the cad and the part got disoriented or corrupted. It ran the remeasure several times before correcting itself.
PC DEMON bit me!

A.Gore

Yep, another one solved by the gang on the forum. You're on a roll today Alton.

**ag162** · 09-18-2007, 03:25 PM

STARTUP =ALIGNMENT/START,RECALL:, LIST= YES
ALIGNMENT/END
MODE/MANUAL
LOADPROBE/2X2BALL
TIP/T1A0B0, SHANKIJK=0, 0, 1, ANGLE=0
FORMAT/TEXT,OPTIONS, ,HEADINGS,SYMBOLS, ;MEAS,NOM,TOL,DEV,OUTTOL, ,
DA1 =AUTO/VECTOR POINT,SHOWALLPARAMS = YES
THEO/2405.017,760.757,492.243,0,-0.9963782,-0.0850323
ACTL/93.879,322.568,-523.886,-0.0099983,-0.0383021,0.9992162
TARG/2405.017,760.757,492.243,0,-0.9963782,-0.0850323
THEO_THICKNESS = 0,RECT,SNAP = NO,$
AUTO MOVE = BOTH,DISTANCE = 5
DA2 =AUTO/VECTOR POINT,SHOWALLPARAMS = YES
THEO/2452.202,754.508,565.73,0,-0.9963782,-0.0850323
ACTL/181.174,315.825,-523.293,-0.0099983,-0.0383021,0.9992162
TARG/2452.202,754.508,565.73,0,-0.9963782,-0.0850323
THEO_THICKNESS = 0,RECT,SNAP = NO,$
AUTO MOVE = BOTH,DISTANCE = 5
DA3 =AUTO/VECTOR POINT,SHOWALLPARAMS = YES
THEO/2482.129,756.108,524.762,-0.0480159,-0.9973302,-0.0550182
ACTL/159.216,270.061,-523.376,-0.0062594,0.018204,0.9998147
TARG/2482.129,756.108,524.762,-0.0480159,-0.9973302,-0.0550182
THEO_THICKNESS = 0,RECT,SNAP = NO,$
AUTO MOVE = BOTH,DISTANCE = 5
TIP/T1A90B180, SHANKIJK=0, -1, 0, ANGLE=180
DC1 =AUTO/EDGE POINT,SHOWALLPARAMS = YES
THEO/2491.965,793.976,488.673,0.4988658,-0.0709809,0.8637677
ACTL/129.697,244.236,-559.357,0.9995862,-0.0280628,0.006324
TARG/2491.965,793.976,488.673,0.4988658,-0.0709809,0.8637677
THEO_THICKNESS = 0,RECT,EDGE THEO_THICKNESS = 0,ONERROR = NO,$
AUTO MOVE = BOTH,DISTANCE = 5,RMEAS = None,None,None,MEASURE ORDER = SURFACE,$
SURFACE NORMAL = 0.8639568,-0.039998,-0.5019749,$
INIT = 1,PERM = 1,SPACER = 1,INDENT = 1.5,DEPTH = 0
DC2 =AUTO/EDGE POINT,SHOWALLPARAMS = YES
THEO/2498.14,792.959,499.379,-0.4988658,0.0709809,-0.8637677
ACTL/142.156,243.905,-559.148,-0.9995862,0.0280628,-0.006324
TARG/2498.14,792.959,499.379,-0.4988658,0.0709809,-0.8637677
THEO_THICKNESS = 0,RECT,EDGE THEO_THICKNESS = 0,ONERROR = NO,$
AUTO MOVE = BOTH,DISTANCE = 5,RMEAS = None,None,None,MEASURE ORDER = SURFACE,$
SURFACE NORMAL = 0.8639568,-0.039998,-0.5019749,$
INIT = 1,PERM = 1,SPACER = 1,INDENT = 1.5,DEPTH = 0
A0 =ALIGNMENT/START,RECALL:STARTUP, LIST= YES
ALIGNMENT/ITERATE
PNT TARGET RAD = 0.05, START LABEL = , FIXTURE TOL = 0.05, ERROR LABEL =
MEAS ALL FEAT = NO ,MAX ITERATIONS = 99 ,LEVEL AXIS=YAXIS ,ROTATE AXIS=XAXIS ,ORIGIN AXIS=ZAXIS
LEVEL = DA1,DA2,DA3,,
ROTATE = DC1,DC2,,
ORIGIN = DC1,,
ALIGNMENT/END
MODE/DCC
Then it does it DCC.

Does anyone see any prbs here?

Thanks in advance,
A.Gore

**ag162** · 09-18-2007, 03:28 PM

Maybe, but I couldn't have done without you Craiger. Lets give Craiger a big round of applause!!! lmao,,,cmon everyone.....clap clap clap

A.Gore

**Matthew D. Hoedeman** · 09-18-2007, 04:26 PM

Code:

STARTUP    =ALIGNMENT/START,RECALL:, LIST= YES
            ALIGNMENT/END
            MODE/MANUAL
            LOADPROBE/2X2BALL
            TIP/T1A0B0, SHANKIJK=0, 0, 1, ANGLE=0
            FORMAT/TEXT,OPTIONS, ,HEADINGS,SYMBOLS, ;MEAS,NOM,TOL,DEV,OUTTOL, , 
DA1        =AUTO/VECTOR POINT,SHOWALLPARAMS = YES
            THEO/2405.017,760.757,492.243,0,-0.9963782,-0.0850323
            ACTL/93.879,322.568,-523.886,-0.0099983,-0.0383021,0.9992162
            TARG/2405.017,760.757,492.243,0,-0.9963782,-0.0850323
            THEO_THICKNESS = 0,RECT,SNAP = NO,$
            AUTO MOVE = BOTH,DISTANCE = 5
DA2        =AUTO/VECTOR POINT,SHOWALLPARAMS = YES
            THEO/2452.202,754.508,565.73,0,-0.9963782,-0.0850323
            ACTL/181.174,315.825,-523.293,-0.0099983,-0.0383021,0.9992162
            TARG/2452.202,754.508,565.73,0,-0.9963782,-0.0850323
            THEO_THICKNESS = 0,RECT,SNAP = NO,$
            AUTO MOVE = BOTH,DISTANCE = 5
DA3        =AUTO/VECTOR POINT,SHOWALLPARAMS = YES
            THEO/2482.129,756.108,524.762,-0.0480159,-0.9973302,-0.0550182
            ACTL/159.216,270.061,-523.376,-0.0062594,0.018204,0.9998147
            TARG/2482.129,756.108,524.762,-0.0480159,-0.9973302,-0.0550182
            THEO_THICKNESS = 0,RECT,SNAP = NO,$
            AUTO MOVE = BOTH,DISTANCE = 5
            TIP/T1A90B180, SHANKIJK=0, -1, 0, ANGLE=180
DC1        =AUTO/EDGE POINT,SHOWALLPARAMS = YES
            THEO/2491.965,793.976,488.673,0.4988658,-0.0709809,0.8637677
            ACTL/129.697,244.236,-559.357,0.9995862,-0.0280628,0.006324
            TARG/2491.965,793.976,488.673,0.4988658,-0.0709809,0.8637677
            THEO_THICKNESS = 0,RECT,EDGE THEO_THICKNESS = 0,ONERROR = NO,$
            AUTO MOVE = BOTH,DISTANCE = 5,RMEAS = None,None,None,MEASURE ORDER = SURFACE,$
            SURFACE NORMAL = 0.8639568,-0.039998,-0.5019749,$
            INIT = 1,PERM = 1,SPACER = 1,INDENT = 1.5,[COLOR="red"]DEPTH = 0[/COLOR]
DC2        =AUTO/EDGE POINT,SHOWALLPARAMS = YES
            THEO/2498.14,792.959,499.379,-0.4988658,0.0709809,-0.8637677
            ACTL/142.156,243.905,-559.148,-0.9995862,0.0280628,-0.006324
            TARG/2498.14,792.959,499.379,-0.4988658,0.0709809,-0.8637677
            THEO_THICKNESS = 0,RECT,EDGE THEO_THICKNESS = 0,ONERROR = NO,$
            AUTO MOVE = BOTH,DISTANCE = 5,RMEAS = None,None,None,MEASURE ORDER = SURFACE,$
            SURFACE NORMAL = 0.8639568,-0.039998,-0.5019749,$
            INIT = 1,PERM = 1,SPACER = 1,INDENT = 1.5,[COLOR="Red"]DEPTH = 0[/COLOR]
A0         =ALIGNMENT/START,RECALL:STARTUP, LIST= YES
            ALIGNMENT/ITERATE
              PNT TARGET RAD = 0.05, START LABEL = , FIXTURE TOL = 0.05, ERROR LABEL = 
              MEAS ALL FEAT = NO ,MAX ITERATIONS = 99 ,LEVEL AXIS=YAXIS ,ROTATE AXIS=XAXIS ,ORIGIN AXIS=ZAXIS
            LEVEL = DA1,DA2,DA3,,
            ROTATE = DC1,DC2,,
            ORIGIN = DC1,,
            ALIGNMENT/END
            MODE/DCC

I would give those edge points a little depth, even 0.1 is better than nothing. A little chip or burr on the edge.... Also, you are hoping that your machine DOES go exactly to the correct location (no drift) otherwise, hitting the very, absolute corner of the part with the high-point of the ball is questionable. I mean, if your machine drifts 'up' even a little, it will hit below the equator and give you a bad pick-up.

**Don Ruggieri** · 09-18-2007, 05:57 PM

First, let me admit that I don't typically use edge points in an iterative alignment very often.

That said, the classic iterative alignment is 6 different points, with opposing vectors, 3 on top (i.e. 0,0,1) 2 in front (i.e. 0,-1,0) and 1 on the remaining side (-1,0,0). Certainly the exact mix does not matter (fron, side, top, or side, front, top, etc.

Your 4th and 5th points vectors are opposites (which in itself is not bad) but you are using the DC1 point as both the rotation and origin points. I suspect this will make it tricky at best.

I may be way off base, just trying to come up with a suggestion. . .

**ag162** · 09-18-2007, 06:42 PM

Hey Don,
Thanks for the assistance. I agree with you 100%. There is only one problem, this part does not really allow any other ways than what I have done here. This works ok with the iterative alignments. I agree it is definately not what I would suggest for anyone to do, but then again, I push the envelope at times when it comes to replicating a fixture alignment. This is a stamping part, 1mm thick and a key hole type slot is the origin. Thats the reason for two edge points. There was an internal error that caused my problem. It finally worked itself out after many remeasures. But what started with an out of parameter error, cleared after a while and a lot of cussing.
Thanks for the assistance,
A.Gore

Ok, I give up. Ideas Anyone?

Ok, I give up. Ideas Anyone?

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