J
jdtrixler
I have searched this site for a similar answer to see what other have found for this question but I did not find anything that was quite the same... Moderators, if this is not in the right area please move!!
I am working in a fabrication shop. We make large steel fabricated parts (non-automotive). We have multiple customers who use GD&T and call out true position of a hole as follows:
POS DIA1.5MMC A B MMC C MMC
POS DIA0.5MMC A
My question is how does everyone interpret the secondary box? The way that I have worked with this in the past is that this is the holes to themselves as a group. To me that would mean to measure these I would create a secondary datum structure that is only referring to these holes. Then you would call the group of holes to this new datum structure. However, the way that others in this organization believe this to be read is taking the first hole back to the original datum structure and then relating the rest of the holes in this group back to the first hole.
How would everyone here setup for this? I understand (sort of) the way that they have done it here for a long time, but I have not done it this way in any of my previous lives.
Thank you all in advance for your help!!!
I am working in a fabrication shop. We make large steel fabricated parts (non-automotive). We have multiple customers who use GD&T and call out true position of a hole as follows:
POS DIA1.5MMC A B MMC C MMC
POS DIA0.5MMC A
My question is how does everyone interpret the secondary box? The way that I have worked with this in the past is that this is the holes to themselves as a group. To me that would mean to measure these I would create a secondary datum structure that is only referring to these holes. Then you would call the group of holes to this new datum structure. However, the way that others in this organization believe this to be read is taking the first hole back to the original datum structure and then relating the rest of the holes in this group back to the first hole.
How would everyone here setup for this? I understand (sort of) the way that they have done it here for a long time, but I have not done it this way in any of my previous lives.
Thank you all in advance for your help!!!