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Am I the only one who had a dimensioning standard come back wrong from a shop?
I sent out a set of drawings for a steel frame using our usual ASME Y14.5 callouts, and the fabricator built it 1/8 inch off on three key holes. My boss said it's because their shop mostly uses ISO standards. Has anyone else run into this and how do you handle it on the title block?
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loganbaker6mo ago
Honestly that sounds like a shop problem more than a title block problem. A good fabricator should ask for clarification if the callouts look weird to them, not just guess. An eighth inch on key holes is a pretty big miss, standards mix up or not. Maybe just add a big note right on the drawing saying "ALL DIMENSIONS PER ASME Y14.5" so they can't miss it.
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ivan5976mo ago
That note about ASME Y14.5 is a solid idea, but I've seen shops ignore big red notes before. Do you think the real fix is better training for the machinists reading the drawings, or is it on the engineers to make things totally foolproof? I've had similar issues where a simple symbol was misunderstood because someone was only trained on old military standards.
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ramirez.blair6mo ago
It's like people just stop reading signs when they should know better, you know?
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