4.1 Mid Line Construction - Whats Going ON????

[Boomer]

I seem to have found a big issue with 4.1. We inspect our electrodes on a fixture plate that we pick up before placing the electrode on the fixture. It is a simple beginning to our program.

dcc mode:
1. Fixture top (level)
2. measure the Front, Right, Back, and Left sides.
3. Construct a line mid front/back(Y0)
4. Construct a line mid right/left(X0)
5. Construct point intersection of X0Y0
6. alignment Fixtop/rotate: front/origin X: X0Y0 / origin Y:X0Y0 /fixture top Zrigin
I have used this same section of code since 3.2063 with no problems.

Today I ran the program on 3.7MR2 - no problems, Decided to use 4.1 with the same program and play around.

look what is happening to the vectors on the constructed lines: PROGRAMS WONT RUN!!!!!! Whats going on here!!!! all features are measured in the zplus view / constructed in the z-plus view?????!!!!!!!! We literally have thousands of programs that use this same section of code........

FRONT =FEAT/LINE,RECT,UNBND
THEO/-4.1435,0,-0.25,1,0,0
ACTL/-4.1441,-0.0002,-0.2502,1,-0.0000974,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-4.1435,0,-0.25,0,-1,0,-4.1441,-0.0002,-0.2501,USE THEO = YES
HIT/BASIC,NORMAL,-0.2904,0,-0.25,0,-1,0,-0.2912,-0.0005,-0.2502,USE THEO = YES
ENDMEAS/

RIGHT =FEAT/LINE,RECT,UNBND
THEO/0,0.4142,-0.25,0,1,0
ACTL/0.0003,0.4134,-0.25,0.0001081,1,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,0,0.4142,-0.25,1,0,0,0.0003,0.4134,-0.2499,USE THEO = YES
HIT/BASIC,NORMAL,0,3.4319,-0.25,1,0,0,0.0007,3.4308,-0.25,USE THEO = YES
ENDMEAS/

BACK =FEAT/LINE,RECT,UNBND
THEO/-0.4828,3.76,-0.25,-1,0,0
ACTL/-0.482,3.7493,-0.25,-1,0.0001118,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-0.4828,3.76,-0.25,0,1,0,-0.482,3.7493,-0.25,USE THEO = YES
HIT/BASIC,NORMAL,-4.0615,3.76,-0.25,0,1,0,-4.0609,3.7497,-0.25,USE THEO = YES
ENDMEAS/

LEFT =FEAT/LINE,RECT,UNBND
THEO/-4.37,3.4325,-0.25,0,-1,0
ACTL/-4.359,3.4334,-0.2502,-0.0001305,-1,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-4.37,3.4325,-0.25,-1,0,0,-4.359,3.4334,-0.2502,USE THEO = YES
HIT/BASIC,NORMAL,-4.37,0.3394,-0.25,-1,0,0,-4.3594,0.3405,-0.2503,USE THEO = YES
ENDMEAS/

Y0 =FEAT/LINE,RECT,UNBND
THEO/-2.3131,1.88,-0.25,-1,0,0
ACTL/-2.313,1.8746,-0.2501,-0.0001046,-1,0
CONSTR/LINE,MID,FRONT,BACK

X0 =FEAT/LINE,RECT,UNBND
THEO/-2.185,1.9234,-0.25,0,-1,0
ACTL/-2.1794,1.9234,-0.2501,1,-0.0001193,0
CONSTR/LINE,MID,RIGHT,LEFT

FIX.X0Y0 =FEAT/POINT,RECT
THEO/-2.185,1.88,-0.25,0,-1,0
ACTL/-2.313,1.9234,-0.2501,1,-0.0001193,0
CONSTR/POINT,INT,X0,Y0AUTO.ALIGN

AUTO.ALIGN =ALIGNMENT/START,RECALL:MAN.ALIGN,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,FIXTOP
ALIGNMENT/ROTATE,XPLUS,TO,FRONT,ABOUT,ZPLUS
ALIGNMENT/TRANS,XAXIS,FIX.X0Y0
ALIGNMENT/TRANS,YAXIS,FIX.X0Y0
ALIGNMENT/TRANS,ZAXIS,FIXTOP
ALIGNMENT/END

[JamesMannes]

Don't know what to tell you. I just tried it in 4.1 and 3.7 and all went well.

I do notice that your "front" line has both THEO/ACTL and the HITBASIC vectors are the same. This should not be. If this is indeed the "front" I can understand the THEO/ACTL having a vector of 1 or -1 in the x axis, but the vectors for measured should then be +1 or -1 in the y axis. Is this what is being screwed up by DMIS? Or is it... don't take offense, operator error?




RONT =FEAT/LINE,RECT,UNBND
THEO/-4.1435,0,-0.25,1,0,0
ACTL/-4.1441,-0.0002,-0.2502,1,-0.0000974,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-4.1435,0,-0.25,0,-1,0,-4.1441,-0.0002,-0.2501,USE THEO = YES
HIT/BASIC,NORMAL,-0.2904,0,-0.25,0,-1,0,-0.2912,-0.0005,-0.2502,USE THEO = YES
ENDMEAS/

[mhesse]

Boomer
I ran into this yesterday. the issue I found in my case was that the program was made in a pevious version and worked fine. when brought into 4.1 for the first time it did not work. In my case the first line was taken from left to right, and the second line was taken from right to left. what I did was construct a "reverse" line of the second and replace the line that i reversed in any constructiuons, alignments or dimensions where the original was being used. This fixed the problem in my case. I have had no time to go in and look to see if there is somthing else incorrect yet.
I hope this helps you out
Mike

[JamesMannes]

Yeah, I didn't do that(make it in 3.7). I guess I should have. I saved it back, opened it in 3.7 and then closed it and re-opened in 4.1.

[VONDY]

I have had it were I did two individual points from left to right, constructed a line from these to points from left to right. When I choose it in an alignment, the vector is going -X. I will use this line and do a reverse. Choose it again in an alignment and it will still be going in the -X. I delete the line and reconstruct it and it then ends up going in the +X axis. This has happened at least in every other program so far that I have written in 4.0 / 4.1.

[Boomer]

midlines2

Jammes:

You will see that the big problem is in the creation of the midlines:
To me, the vector of the constructed line does not matter wether it is -1,0,0 or 1,0,0 and the same for the X0, the problem is that the vectors are 90deg to the theoretical causing BIG problems - fixture center is not where it should be.


Y0 =FEAT/LINE,RECT,UNBND
THEO/-2.3131,1.88,-0.25,-1,0,0
ACTL/-2.313,1.8746,-0.2501,-0.0001046,-1,0
CONSTR/LINE,MID,FRONT,BACK

X0 =FEAT/LINE,RECT,UNBND
THEO/-2.185,1.9234,-0.25,0,-1,0
ACTL/-2.1794,1.9234,-0.2501,1,-0.0001193,0
CONSTR/LINE,MID,RIGHT,LEFT

This program start was created in 3.2063....If I have to rewrite all the programs in 4.1, I will not be able to change to 4.1. THIS SUCKS!!!

[Boomer]

fixture vectors

Here is a pdf...of the fixture vectors

[Tested]

Boomer the only thing that I see that might be suspect is the period in the name of your point construction. I’ve always been told to avoid this. I find it hard to believe that if it has not caused a problem before that it would now but it might be something to look at.

FIX.X0Y0 =FEAT/POINT,RECT
THEO/-2.185,1.88,-0.25,0,-1,0
ACTL/-2.313,1.9234,-0.2501,1,-0.0001193,0
CONSTR/POINT,INT,X0,Y0AUTO.ALIGN

[JamesMannes]

Sorry, Don't know what I was smokin on Saturday. My first response was bogus.

I'll try the same thing in 3.7 later on today. Have you called tech support and let them know about this problem?

[Matthew D. Hoedeman]

YEP, it is best to avoid ANY type of character that can have a mathematical function. / * - + and . all have mathematical uses and should be avoided at ALL cost in the feature ID's and the dimension ID's. Not sure if that is causing this problem, but avoid them, always!

[Boomer]

feature label

I tired changing names of all features......no different. Problem is in the creation of the 2 lines previous to the creation of the point.

[Tested]

Boomer can you post the same thing as it appears in 3.7?

[Boomer]

3.7 MR3 program run

Here is the same section of code that I ran just before I ran in 4.1. you will notice the difference in the x0 y0 line creation:

FRONT =FEAT/LINE,RECT,UNBND
THEO/-3.4995,0,-0.25,1,0,0
ACTL/-3.4988,-0.0015,-0.2503,1,0.0001356,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-3.4995,0,-0.25,0,-1,0,-3.4988,-0.0015,-0.2503,USE THEO = YES
HIT/BASIC,NORMAL,-0.7495,0,-0.25,0,-1,0,-0.7487,-0.0011,-0.2508,USE THEO = YES
ENDMEAS/

RIGHT =FEAT/LINE,RECT,UNBND
THEO/0.0005,0.75,-0.25,0,1,0
ACTL/-0.0006,0.7501,-0.2504,-0.0001455,1,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,0.0005,0.75,-0.25,1,0,0,-0.0006,0.7501,-0.2504,USE THEO = YES
HIT/BASIC,NORMAL,0.0005,3,-0.25,1,0,0,-0.0009,2.9993,-0.2502,USE THEO = YES
ENDMEAS/

BACK =FEAT/LINE,RECT,UNBND
THEO/-0.7495,3.7,-0.25,-1,0,0
ACTL/-0.75,3.7428,-0.2503,-1,-0.0001428,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-0.7495,3.7,-0.25,0,1,0,-0.75,3.7428,-0.2503,USE THEO = YES
HIT/BASIC,NORMAL,-3.4995,3.7,-0.25,0,1,0,-3.5003,3.7424,-0.2502,USE THEO = YES
ENDMEAS/

LEFT =FEAT/LINE,RECT,UNBND
THEO/-4.2995,3,-0.25,0,-1,0
ACTL/-4.3547,2.9998,-0.2503,0.0001112,-1,0
MEAS/LINE,2,WORKPLANE
MOVE/CLEARPLANE
HIT/BASIC,NORMAL,-4.2995,3,-0.25,-1,0,0,-4.3547,2.9998,-0.2503,USE THEO = YES
HIT/BASIC,NORMAL,-4.2995,0.75,-0.25,-1,0,0,-4.3544,0.7511,-0.2506,USE THEO = YES
ENDMEAS/

Y0 =FEAT/LINE,RECT,UNBND
THEO/-2.1245,1.85,-0.25,-1,0,0
ACTL/-2.1244,1.8707,-0.2503,-1,-0.0001428,0
CONSTR/LINE,MID,FRONT,BACK,2.75

X0 =FEAT/LINE,RECT,UNBND
THEO/-2.1495,1.875,-0.25,0,-1,0
ACTL/-2.1776,1.875,-0.2503,0.0001112,-1,0
CONSTR/LINE,MID,RIGHT,LEFT,2.25

FIX.X0Y0 =FEAT/POINT,RECT
THEO/-2.1495,1.85,-0.25,0,-1,0
ACTL/-2.1776,1.8706,-0.2503,0.0001112,-1,0
CONSTR/POINT,INT,X0,Y0

AUTOALIGN =ALIGNMENT/START,RECALL:MAN_ALIGN, LIST= YES
ALIGNMENT/LEVEL,ZPLUS,FIXTOP
ALIGNMENT/ROTATE,XPLUS,TO,FRONT,ABOUT,ZPLUS
ALIGNMENT/TRANS,XAXIS,X0Y0
ALIGNMENT/TRANS,YAXIS,X0Y0
ALIGNMENT/TRANS,ZAXIS,FIXTOP
ALIGNMENT/END

[Tested]

Bommer I'm sure this is a dumb question but I need to ask it. Why are your THOE different from the eariler to the later programs?

[Boomer]

theo different

I dont know either.......I'm not sure if 4.1 changed them....I could have opened up the feature in 4.1 and tried recreating them.....not exactly sure.

If 4.1 is somehow looking at the features differently than in previous versions, this may have caused the software to create new theo values...