Just read that a 0.001 inch tolerance drift can scrap a whole production run of 500 parts

I was reading through some setup sheets from a shop in Omaha last week and saw that stat about tolerance drift. It really hit me because I always thought small errors would just get caught at inspection. But they had a whole run of aerospace brackets get scrapped over 8 tenths of a thou. Has anyone else had a job go south over just a few tenths?

2 comments

2 Comments

the_jason18d ago

Man, I once saw a guy lose a whole day's pay because a setup block had a burr the size of a hair on it. His boss made him stand there and watch while the scrapped parts got tossed in the recycle bin one by one.

seth_nguyen18d ago

Oh man @the_jason that's brutal. Bosses like that really know how to twist the knife.