Does the CAD Model or Drawing Information Take Precedence?

Jason answers the following question regarding which takes precedence – CAD model or drawing information – in this Question Line video: 

General note states: “break all sharp edges .020 max.” Customer’s supplied model has .050” radius on all corners. Notes supersede dimensions even if the model has a radius. The note states “ALL”, which includes every corner. What would be the rules here?

The submitted question involves a drawing that says to break all sharp edges to a certain limit, while the customer’s CAD model shows a larger radius on every corner. Jason walks through how to approach situations like this—starting with any internal documentation or customer agreements that may override the usual ASME rules, and then moving into what the standards say when no special agreement exists. 

Using a clevis bracket drawing, he breaks down how precedence works inside the drawing itself (what’s shown in the field of view versus what’s written in the notes or title block) and how that compares to the information in the CAD model. Jason also stresses the importance of having a conversation with the designer when something doesn’t seem to line up, so the original intent is understood before manufacturing moves forward. 

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