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Measuring flatness of primary datum in constrained condition?
A principal engineer at my company always adds the word 'CONSTRAINED' next to a flatness callout on plastic parts for the Datum A feature, as shown in the picture attached. When I asked him about it, he explained that this allows the vendor to apply some pressure to the part when measuring...- ryanwolff90
- Thread
- Replies: 18
- Forum: Drafting Standards, GD&T & Tolerance Analysis
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Measuring of airflow using flowmeters
Hi All, Our machine uses compressed dry air to power certain sub-systems (pressurized systems such as isolation, or hydraulics) and as cooling air for hot items. If I measure the airflow coming from the regulator at the wall to the machine by installing a flow meter in line, I am measuring the...- ryanwolff90
- Thread
- Replies: 10
- Forum: Pipelines, Piping and Fluid Mechanics engineering
