Guides on pickup up odd details?

I've mainly worked with fixtures that have designed alignment features. We recently purchased a few romer units and now we're picking up individual details that may not have obvious alignment features.

Does anyone have a good resource that gives examples of aligning on freestate objects?

Also here is one thing I'm trying to wrap my head around:

We're inspecting the individual details to their CAD as they come out of CNC. Are we able to align to features that we're trying to verify to see if they're correct?

EX: If I'm inspecting the location of two bushing holes, am I able to use them as my rotation features if the entire point of checking the detail is to make sure those bushings are in the right spot?

Thanks in advance for helping my ignorant self.

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Schrocknroll over 7 years ago

If all you need is the size and/or the form of the holes, then the alignment doesn't matter. If you have two bushing holes and only need to know the distance between them, then you can align to them. If the print calls out position to datums, you will need to measure those and align to them.

We could be of more help if we knew more about what dimensions you are trying to capture and the parts you are measuring.

Also, you mention you have CAD, but do you also have a print?
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Schrocknroll over 7 years ago

If all you need is the size and/or the form of the holes, then the alignment doesn't matter. If you have two bushing holes and only need to know the distance between them, then you can align to them. If the print calls out position to datums, you will need to measure those and align to them.

We could be of more help if we knew more about what dimensions you are trying to capture and the parts you are measuring.

Also, you mention you have CAD, but do you also have a print?
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