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Core Pin alignment

JCG87
Hello,

this is my first post and I just have a basic experience with CMM's and PC-DMIS. I am having a hard time figuring out how to align a core pin (see picture below). I have the .IGS model uploaded and I tried to align the part using a cone and a circle. Then I was trying to measure an inner diameter of the core pin the probe on the 3D model was in the correct position (height) but the physical probe way far from the core pin in the Z axis (height).So I guess there is an alignment problem. I used a cone because the outer section of the core pin have a 0'' 34' dft in the surface. Any suggestion how to align the core pin?
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  • To measure all the features on this part, I would also align the part on the table along the X or Y axis (instead of upright) and use a star configuration probe, if accuracy is critical between the bores, use 2 probes, one in X+ dir, ine in X- direction to eliminate probe rotations. The part would need to be manually aligned in X as the probe goes quite deep in the bore and could shank. This method also allows you to measure the bottom datum.
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  • To measure all the features on this part, I would also align the part on the table along the X or Y axis (instead of upright) and use a star configuration probe, if accuracy is critical between the bores, use 2 probes, one in X+ dir, ine in X- direction to eliminate probe rotations. The part would need to be manually aligned in X as the probe goes quite deep in the bore and could shank. This method also allows you to measure the bottom datum.
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