Looping

[Ken379128]

Hi All
I was wondering what you do to get the loop to move in the x direction. I have written one to go in the Y direction for as many pieces I want but cannot get it to go in the x direction if I need to do another row. I understand it is a loop inside a loop but I am having a hard time getting it down any help would be great.

Thanks

[Maqboul]

put the cursor in the front of first loop , define looping parameters , then move the cursor at the end the first loop , choose end loop command.

Hope this helps
Maq

V2 =LOOP/START, ID = YES, NUMBER = 3, START = 1, SKIP = ,
OFFSET: XAXIS = 20, YAXIS = 0, ZAXIS = 0, ANGLE = 0
V1 =LOOP/START, ID = YES, NUMBER = 3, START = 1, SKIP = ,
OFFSET: XAXIS = 0, YAXIS = 20, ZAXIS = 0, ANGLE = 0
CAP1 =AUTO/CIRCLE,SHOWALLPARAMS = YES,SHOWHITS = NO
THEO/0,0,0,1,0,0,11
ACTL/0,0,0,1,0,0,11
TARG/0,0,0,1,0,0
THEO_THICKNESS = 0,RECT,IN,STRAIGHT,LEAST_SQR,NORM,ONERROR = NO,$
AUTO MOVE = NO,DISTANCE = 50,RMEAS = None,None,None,$
READ POS = NO,FIND HOLE = NO,REMEASURE = NO,$
NUMHITS = 4,INIT = 0,PERM = 0,SPACER = 2.5,PITCH = 0,$
START ANG = 0,END ANG = 0,DEPTH = 1,$
ANGLE VEC = 0,0,1,$
PUNCH = 1,0,0,PIN = 1,0,0
LOOP/END
LOOP/END

[B. Jacobs]

Hi All
I was wondering what you do to get the loop to move in the x direction. I have written one to go in the Y direction for as many pieces I want but cannot get it to go in the x direction if I need to do another row. I understand it is a loop inside a loop but I am having a hard time getting it down any help would be great.

Thanks

Ken,
I just learned all this myself. What I do is this:
I put in the first loop and tell it how many parts in that direction.
Second I put in another loop right after the first one and tell it how many rows.

Here is a short program I have for checking the Diam of a ring. It has 5 parts right to left and 4 rows from front to back for a total of 20 parts.
If you don't understand it. PM me and I will try to walk you through it.

STARTUP =ALIGNMENT/START,RECALL:, LIST= YES
ALIGNMENT/END
MODE/MANUAL
LOADPROBE/1_5BY40MM
TIP/T1A0B0, SHANKIJK=0, 0, 1, ANGLE=0
FORMAT/TEXT, ,HEADINGS, , ;MEAS,NOM,TOL,DEV,OUTTOL, ,
STATS/ON,DATAPAGE,$
DIRECTORY=C:\DATAPAGE\RETAINER,$
DIRECTORY=,$
READ=10,WRITE=20,MEMPAGES=4,DIMENSION NAME,CONTROLCALC OFF,$
STATS/END
V1 =LOOP/START, ID = YES, NUMBER = 5, START = 5, SKIP = ,
OFFSET: XAXIS = 4, YAXIS = 0, ZAXIS = 0, ANGLE = 0
V2 =LOOP/START, ID = YES, NUMBER = 4, START = 1, SKIP = ,
OFFSET: XAXIS = 0, YAXIS = 4, ZAXIS = 0, ANGLE = 0
MODE/DCC
PREHIT/ 0.1
RETRACT/ 0.1
FLY/ON,0.125
MOVESPEED/ 60
MOVE/POINT,3.6204,3.4777,-25.029
CIR2 =AUTO/, SHOWALLPARAMS=YES, SHOWHITS=YES
THEO/5.546,2.2137,-26.84,0,0,1,3.2035,0
ACTL/5.5326,2.1344,-26.84,0,0,1,3.2032,0
TARG/5.546,2.2137,-26.84,0,0,1
THEO_THICKNESS = 0, RECT, OUT, CIRCULAR, LEAST_SQR, ONERROR = NO ,$
AUTO MOVE = NO, DISTANCE = 0.15, RMEAS = None, READ POS = NO, FIND HOLE = NO, REMEASURE = NO ,$
NUMHITS = 18, INIT = 0, PERM = 0, SPACER = 0, PITCH = 0 ,$
START ANG = 180, END ANG = 540, DEPTH = 0.0009 ,$
ANGLE VEC = 1,0,0
MEAS/CIRCLE
HIT/BASIC,3.9443,2.2137,-26.8391,-1,0,0,3.9329,2.2137,-26.8391
HIT/BASIC,4.0408,1.6659,-26.8391,-0.9396926,-0.3420201,0,4.0051,1.6527,-26.8392
HIT/BASIC,4.319,1.1841,-26.8391,-0.7660444,-0.6427876,0,4.2732,1.145,-26.8392
HIT/BASIC,4.7451,0.8265,-26.8391,-0.5,-0.8660254,0,4.7079,0.7613,-26.8391
HIT/BASIC,5.2679,0.6363,-26.8391,-0.1736482,-0.9848078,0,5.2543,0.5579,-26.8391
HIT/BASIC,5.8241,0.6363,-26.8391,0.1736482,-0.9848078,0,5.839,0.5623,-26.839
HIT/BASIC,6.3469,0.8265,-26.8391,0.5,-0.8660254,0,6.3781,0.7742,-26.839
HIT/BASIC,6.773,1.1841,-26.8391,0.7660444,-0.6427876,0,6.8032,1.1594,-26.8389
HIT/BASIC,7.0512,1.6659,-26.8391,0.9396926,-0.3420201,0,7.0629,1.6615,-26.839
HIT/BASIC,7.1477,2.2137,-26.8391,1,0,0,7.1325,2.2138,-26.8391
HIT/BASIC,7.0512,2.7615,-26.8391,0.9396926,0.3420201,0,7.0124,2.7477,-26.8392
HIT/BASIC,6.773,3.2433,-26.8391,0.7660444,0.6427876,0,6.7251,3.2037,-26.8392
HIT/BASIC,6.3469,3.6009,-26.8391,0.5,0.8660254,0,6.3092,3.535,-26.8391
HIT/BASIC,5.8241,3.7911,-26.8391,0.1736482,0.9848078,0,5.8102,3.7114,-26.839
HIT/BASIC,5.2679,3.7911,-26.8391,-0.1736482,0.9848078,0,5.2814,3.716,-26.839
HIT/BASIC,4.7451,3.6009,-26.8391,-0.5,0.8660254,0,4.7769,3.5465,-26.839
HIT/BASIC,4.319,3.2433,-26.8391,-0.7660444,0.6427876,0,4.3513,3.2162,-26.839
HIT/BASIC,4.0408,2.7615,-26.8391,-0.9396926,0.3420201,0,4.0561,2.7559,-26.839
ENDMEAS/

[craiger_ny]

I am guessing you want to first icrement through a row of parts that run along the Y axis then move over in the X axis and run another row along the Y the same as you did the first? Is this what you are shooting for? If so nest your loops. Let us know exactly what pattern on your table you'd like to increment things along in and we can post some code explaining it to you.

Craig

[tking]

Nest it like Maq was saying. OK, Bryan will get you squared away. Loops are fun, but then I'm kinda loopy myself. I'm gonna go home now and get good and looped, got a new keg on tap!

TK

[craiger_ny]

Lets say you have 6 parts all lined up along the Y axis 2 inches apart. Then 2 inches over in the X axis you have another row and a third 2 inches over from that. You want to measure the parts first along the Y axis then move over 2 inches in the X and do it all over again until you have done 3 rows of 6 along the X axis. Your code would look like this:

X_LOOP     =LOOP/START, ID = YES, NUMBER = 3, START = 1, SKIP = ,
               OFFSET: XAXIS = 2, YAXIS = 0, ZAXIS = 0, ANGLE = 0
Y_LOOP     =LOOP/START, ID = YES, NUMBER = 6, START = 1, SKIP = ,
               OFFSET: XAXIS = 0, YAXIS = 2, ZAXIS = 0, ANGLE = 0
LOOPED_FEATURE=FEAT/CIRCLE,RECT,OUT,LEAST_SQR
            THEO/0,0,0,0,0,1,1
            ACTL/0,0,0,0,0,1,1
            MEAS/CIRCLE,4,WORKPLANE
            HIT/BASIC,NORMAL,0.5,0,0,1,0,0,0.5,0,0,USE THEO = YES
            MOVE/CIRCULAR
            HIT/BASIC,NORMAL,0,0.5,0,0,1,0,0,0.5,0,USE THEO = YES
            MOVE/CIRCULAR
            HIT/BASIC,NORMAL,-0.5,0,0,-1,0,0,-0.5,0,0,USE THEO = YES
            MOVE/CIRCULAR
            HIT/BASIC,NORMAL,0,-0.5,0,0,-1,0,0,-0.5,0,USE THEO = YES
            ENDMEAS/
DIM LOOPED_DIMENSION= LOCATION OF CIRCLE LOOPED_FEATURE  UNITS=IN ,$
GRAPH=OFF  TEXT=OFF  MULT=10.00  OUTPUT=BOTH
AX   NOMINAL     +TOL       -TOL       MEAS        DEV      OUTTOL   
D      1.0000     0.0050     0.0050     1.0000     0.0000     0.0000 ----#----
END OF DIMENSION LOOPED_DIMENSION
            LOOP/END
            LOOP/END

Of course I just threw a diameter in there as an example. Your program code would go there including a clearplane I assume so that you are not crashing but if you already use loops you know about that.

Craig

[Maqboul]

As mentioned above , i did a loop with my offline both 3.7mr2_1 and 4.1 versions.

This happened...

[craiger_ny]

Those are your index numbers.

Craig

[Maqboul]

i know ; for the first loop everything appears correctly , but for the second one the appearance is not correct !

[Maqboul]

Sorry ; i forgot to change the normal vector of the circle... it works fine..

[Ken379128]

Thanks all I will try the ideas out and let you know if I get time on the machine.

[dbusch]

Curious - what aligning are you planning on for the parts? Will your fixture be temporary, or will it be on the machine for a while? Our two cmm's have permanently-mounted fixtures, one with 13 stations and one with 20 stations. They have 13 and 20 external fixture alignments, respectively. My programs have DO loops that recall these alignments. Within the loop is the part alignment, which is done at each station, using hits both on the fixture and on the part.