Confirming Perpendicularity of Primary, Secondary & Tertiary Datums

Thread starter saurya08
Start date Dec 11, 2011

In summary, to confirm perpendicularity of primary, secondary, and tertiary datums, precision measurement tools such as laser trackers or coordinate measuring machines can be used. It is important to confirm perpendicularity as it ensures accuracy and precision in measurements, and not doing so can lead to errors, misalignment, and potentially, product or structural failure. While it is possible to confirm perpendicularity manually, it is not recommended due to potential human error and limitations in measuring tools. The frequency of confirming perpendicularity depends on the industry and application, but it is generally recommended to do so during initial setup and periodically throughout the production or construction process for reliable and precise measurements.

Dec 11, 2011

saurya08

Do the primary , secondary and tertiary datums need to be perpendicular to each other always ( when specified).

Engineering news on Phys.org

Dec 12, 2011

Ranger Mike

Science Advisor

Gold Member

if the datum is speced with perpendicular tolerance then they got to be. If its on the print..part must conform to it. The exception being a POINT in space..how do you confirm that it is perpendicular??

FAQ: Confirming Perpendicularity of Primary, Secondary & Tertiary Datums

How do you confirm perpendicularity of primary, secondary, and tertiary datums?

To confirm perpendicularity of primary, secondary, and tertiary datums, you can use a precision measurement tool such as a laser tracker or coordinate measuring machine. These tools are able to measure the angles between the datums and determine if they are truly perpendicular.

Why is it important to confirm perpendicularity of datums?

Confirming perpendicularity of datums is important because it ensures accuracy and precision in measurements. If the datums are not perpendicular, it can lead to errors in measurements and result in faulty products or structures.

What are the potential consequences of not confirming perpendicularity of datums?

If perpendicularity of datums is not confirmed, it can lead to incorrect measurements, misalignment of parts, and ultimately, product or structural failure. This can result in financial losses and potential safety hazards.

Can perpendicularity of datums be confirmed manually?

Perpendicularity of datums can be confirmed manually, but it is not recommended. Human error and limitations in measuring tools can lead to less accurate results. It is best to use precision measurement tools for more reliable and precise measurements.

How often should perpendicularity of datums be confirmed?

The frequency of confirming perpendicularity of datums depends on the specific industry and application. In general, it is recommended to confirm perpendicularity during initial setup and periodically throughout the production or construction process to ensure accuracy and precision.