Fixturing Locator Design: 3-2-1 Datum Principle and Pin Location
The Part That Wouldn’t Locate Consistently We designed a welding fixture. The part sat on two support pads. Two side stops positioned it left-right. On the first part, it welded fine. On the tenth part, the weld was 2 mm off. The problem: the part had a casting flash on the bottom face. The two …
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