We have a part that has datums defined on opposite sides of a web that cannot be machined in the same stage. Currently, we are struggling to maintain probe tolerance from stg2 to stg3 (the two stages both datums would be finished.) Our machines have the ability to align from stage-stage oppose to doing probe offsets, we are considering doing some test cuts as a potential solution to our problem. However, no one at our facility has any real experience in doing this type of machining.
(Ship rate is 45 a month at full rate, so creating a special tool, for example, that would located on Datum 1, then drill Datum 2 as an attempt to keep correlation on the opp side is not entirely feasible with the lead time. I've also presented a PP to the OEM team, documenting the struggles of defining datums that cannot be machined in-relationship, as well as engineering re-design suggestions for ease of manufacturing. Their engineering team denied the suggestion, being "design intent" - however, they did increase the purchase price per part significantly, which is good I guess
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