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Validate my method is fine please (programmers differ in opinion)

Lord_Warfield
Good Morning Interweb,

So I have a simple alignment. Plane A, circle B, circle C. I Leveled to the plane A and origin Z to it. Translate XY to circle B. Rotate to a line made from B to C. Done.

A different programmer believes I must rotate before translating.... I totally disagree on this simple alignment. Using Legacy btw.

Without being degrading... please reply.
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  • This method I have had internal issues with. never anything i have documented or researched in any way but i believe (again just a mental simulation no proof) creating multiple alignments when creating your final alignment would incorporate deviation from the previously measured features. thus changing the location of the part with each alignment.

    vs measuring the entire alignment features from one single alignment whether it be a manual alignment or the CMM startup alignment.

    Just an opinion.

    i would also like to state that in this example of plane circle circle i dont think it would have too much of an impact. however on a plane line point alignment or anything with more chance for deviation during measurement would have a greater impact on the alignment.

    I guess you could say the same about the relationship of the startup alignment to the part vs the other method. but i cant convince myself that its a safe bet. not saying your wrong at all.... just my own programming "do not do" list
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  • This method I have had internal issues with. never anything i have documented or researched in any way but i believe (again just a mental simulation no proof) creating multiple alignments when creating your final alignment would incorporate deviation from the previously measured features. thus changing the location of the part with each alignment.

    vs measuring the entire alignment features from one single alignment whether it be a manual alignment or the CMM startup alignment.

    Just an opinion.

    i would also like to state that in this example of plane circle circle i dont think it would have too much of an impact. however on a plane line point alignment or anything with more chance for deviation during measurement would have a greater impact on the alignment.

    I guess you could say the same about the relationship of the startup alignment to the part vs the other method. but i cant convince myself that its a safe bet. not saying your wrong at all.... just my own programming "do not do" list
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