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A primary datum requires how many points of contact?
According to ASME Y14.5, a primary dimensioning datum requires at least 3 points of contact to establish the datum plane. Two points of contact are required for the secondary datum and 1 point of contact is required for the tertiary datum.
When reviewing CMM data how many measurement points are needed to establish the primary datum plane?
To establish the primary datum plane using CMM (Coordinate Measuring Machine) data, a minimum of three measurement points is typically required. These points should be non-collinear and positioned appropriately to define the plane's orientation accurately. By using these points, the CMM can calculate the plane's best-fit surface, ensuring the datum is established correctly for subsequent measurements.
Explain how to select and establish a suitable datum the importance of ensuring that marking out is undertaken from the selected datum and the possible effects of working from a different?
To select a suitable datum, consider a stable reference point on the workpiece or surface. Mark the datum clearly and securely. When marking out, ensure all measurements and reference points are taken from this datum to maintain accuracy and consistency. Working from a different datum can lead to incorrect measurements, misalignments, and errors in the final product. It is crucial to avoid this by consistently using the established datum.
What is the Definition of datums?
a theoretically exact point, axis, or plane derived from the true geometric counterpart of a specified datum feature. A datum is the origin from which the location or geometric characteristics of features of a part are established.
When was minimum wage established in the us?
Franklin D. Roosevelt established minimum wage.
What was the minimum wage in 1913?
There was no established minimum wage in 1913. The federal minimum wage was established in 1938 under the Fair Labor Standards Act.
Is datum the plural of data?
Datum is not the plural of data. Datum is singular, and its plural form is data.
What step did the national recovery adminstration take to restore the nations economy?
It established a minimum wage.
What is hydrography datum?
Correction: What is hydrographic datum? not "hydrography"
What did the National Recovery Administration do?
It established a minimum wage.
What is assumed ordnance datum?
Assumed ordnance datum is a reference point used in surveying and engineering to establish a consistent vertical level from which elevations are measured. It serves as a baseline for determining heights, depths, and levels of various geographical features or structures. This datum is particularly useful in areas where a formal or established mean sea level is not available, providing a practical standard for construction and mapping projects.
What is datum in design?
datum is the plane in which we can sketch any thing thing
