[Tr...] Posted January 16, 2020 Share Posted January 16, 2020 We have a Zeiss Contura G2. I've been programming and running it for over ten years. I've made thousands of Calypso programs with no problem. Just about all the problems I have encountered I have been able to resolve. But there's this one issue I have encountered a few times that I can't figure out. Sometimes I manually create a program that runs successfully the first time, and I save it. Then later when I try to use it again, I do a manual alignment, but the CMM doesn't find the part. Instead it takes off in some random direction. What might cause this? Link to comment Share on other sites More sharing options...
[Me...] Posted January 16, 2020 Share Posted January 16, 2020 Usually it has something to do with an unstable Base Alignment that is being solved differently than when you first created it. Check the direction of lines and/or clocking features and that each of the features in your alignment is large enough and capable of defining the constraint that your defining in your alignment. Link to comment Share on other sites More sharing options...
[Ke...] Posted January 16, 2020 Share Posted January 16, 2020 Sometimes I have the same issue, when performing a manual alignment on a perfectly stable base alignment... but I use minimal points to define manually (usually the feature is a cylinder or a cone). It is useful to add a rough Start Alignment, to locate the part... If the cylinder/cone is defining x & z (and probably using for spatial as well), I will just use a circle (on the cylinder) for x & z only; a point for y (no spatial or planar rotations) Link to comment Share on other sites More sharing options...
[Ow...] Posted January 16, 2020 Share Posted January 16, 2020 Check your blocked edges illustration and see if the alignment is flipped. Link to comment Share on other sites More sharing options...
[Ad...] Posted January 16, 2020 Share Posted January 16, 2020 Is "Set base alignment to zero" checked? Link to comment Share on other sites More sharing options...
[Tr...] Posted January 16, 2020 Author Share Posted January 16, 2020 Thanks for the replies!! I was able to get it to run fine by using a start alignment with a different feature. The part is a round machine pallet receiver. I've got it oriented with the X axis instead of flat on the table. My base alignment is a flange face as the spatial and X0, clocked with a 3D line running between two opposing dowel holes, and the Y and Z zeroes are an OD that I can only reach 320 degrees of. I changed that incomplete circle for a different feature with a full 360° circle in the start alignment and it ran fine. Before, I guess it didn't like the incomplete circle or perhaps I did my manual points in the manual alignment in the wrong direction or something. Thanks again for the help!! Link to comment Share on other sites More sharing options...
[Ke...] Posted January 16, 2020 Share Posted January 16, 2020 Please sign in to view this quote. So as long as they are at the bottom and circled regardless if they are checked you have a good alignment? Link to comment Share on other sites More sharing options...
[Ow...] Posted January 16, 2020 Share Posted January 16, 2020 So as long as they are at the bottom and circled regardless if they are checked you have a good alignment? [/quote] No it doesn't mean you have a good or bad alignment. It just means that it more than likely flipped if the circled box's on the bottom are on top. It was just a quick suggestion regarding my assumption that was what might be happening. Link to comment Share on other sites More sharing options...
[Tr...] Posted August 25, 2020 Author Share Posted August 25, 2020 Ran into another one of these today. It is perplexing to say the least. Link to comment Share on other sites More sharing options...
[Ja...] Posted August 25, 2020 Share Posted August 25, 2020 I have read on this forum that if you have a 3D line created from two circles and you do a manual alignment, you need to make sure you measure the circles in the correct order or it will change direction. Link to comment Share on other sites More sharing options...
[Ro...] Posted August 25, 2020 Share Posted August 25, 2020 Please sign in to view this quote. I agree with the start alignment, but i like to do 3 points only. Quick & dirty, nothing to get confused. With good fixturing Calypso will get rotation and level from the machine defaults. Operators LOVE 3 point alignments. Link to comment Share on other sites More sharing options...
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