2 models 1 program

[ogcharliebrown]

I hope this comes out right. I have a program ( I'll call it the front side) that runs fine with the original model. No problems. Then I was getting slick and added the back side so now I have 2 models (front side and back side) one program. Now that I have 2 models on there I get a over travel in X. One model no problem add the second model and it sh_its the bed! Again I can run the front side separate no problems. I can run the back side separate no problems. Fingers crossed that this explanation is right!!! I have programmed smaller parts this way and no problems. Does PC-Dmis think the part is wider than it really is(11.5")?

[Schlag]

??? When you "flip" your part. recall your 1st DCC alignment ( or I suppose you can use recall the startup alignment ) Then make sure your 2nd manual alignment is taken from the CAD( even if you are one of those mutants who program from the actual part instead of the CAD). If your manual alignments are not done from the cad model nothing will " line up" with the cad.

[ogcharliebrown]

I'm trying this with the model behind in Y instead of on the side in X and so far so good no over travel in X. What I'm seeing is that PC-Dmis over travel thinking that I have 2 parts on the table even though there is only 1 I would think the alignment would confirm this. The over travel happened when the probe was rotated to A90B-90 to probe the side of the part. All is fixed!
No mutation here but don't ask the wife she might agree with you Schlag!

[Schlag]

Got ya. This isn't a program issue its a part placement issue. My programs like this, ideally I flip the part over and place it in excatly the same location so my fixturing doesnt have to change. Offline when I program my models will be far enough apart so I can see everything and all of the features will line up in their actual features. The programs dont actually sit on the cmm that way. After you run them on the CMM all of the features will just stack in 1 of the models and it looks like a real mess.

[ogcharliebrown]

My parts sit in the same place on the table(RAYCO). Just the model was sitting in a different place in PCD. The models were siting in line with X so I changed them to sit in the Y position behind the first model and everything worked like they should, and only when I probed A90B-90 would I get the alarm when they were sitting in the X position. I thought the alignment would control this. Now I know that if I have bigger parts to run the models behind the first one in Y . Live and learn.