Center axis as a datum not repeat

Little confused the drawing posted has datum B as the 1.125 diameter and estimate 2 inch long, the code is showing datum B as 1.375 diameter length 0.36 with depth and end offset that reduce the cylinder length to 0.222.

Ignoring that it appears the wrong cylinder is being used as datum B the length of the cylinder and the number of hits used will not create a stable axis.

Yes I had thay backwards. I had fixed that already.

"a center of an cylinder is just that a center of a cylinder. Points do not matter if pcd is not smart enough to make a cylinder with 6 points it is useless.zeiss and polyworks can do it eveytime with minimal number of points. Asme defines a cylinder as 6 points. Pcd can't not dictate or tell me how many points I need. A pin fits in that hole so form is good and size is good. Pcd can not tell or use other info to change the fact a asme defined cylinder is 6 points. Anything else is just creating error in the measurement."


"We used a boring bar so it is impossible to not be in position to b. They are cut at the same time with the same tool.why can the cmm and hexagon not figure out to.measure parts correctly"


Not my words but my manager words. He found using the height gage the center of b and then found the center of the other hole was .0003 off center so the part is good and shipped.

Yes I had thay backwards. I had fixed that already.

"a center of an cylinder is just that a center of a cylinder. Points do not matter if pcd is not smart enough to make a cylinder with 6 points it is useless.zeiss and polyworks can do it eveytime with minimal number of points. Asme defines a cylinder as 6 points. Pcd can't not dictate or tell me how many points I need. A pin fits in that hole so form is good and size is good. Pcd can not tell or use other info to change the fact a asme defined cylinder is 6 points. Anything else is just creating error in the measurement."


"We used a boring bar so it is impossible to not be in position to b. They are cut at the same time with the same tool.why can the cmm and hexagon not figure out to.measure parts correctly"


Not my words but my manager words. He found using the height gage the center of b and then found the center of the other hole was .0003 off center so the part is good and shipped.