What is datum plane a?

What is datum plane a?

The surface of the target (datum feature) indicated as the datum may be uneven or warped. Datum plane A can be established by supporting the surface set up as a datum using a surface plate or other higher precision plane. The supporting plane is the simulated datum feature.

What is a datum plane in Siemens NX?

November 1, 2018 by mechanicaleng blog Leave a Comment In siemens nx, a datum plane is a planar reference feature. Datum planes can be relative or fixed. It uses to create other features such as swept body, features at angle to the faces of target solids.

What is the 3-2-1 rule for primary datum?

It only applies when all three plaines are used. The 3-2-1 rule says: – The primary datum feature has at least 3 points of contact with its datum plane. – The secondary datum feature has at least 2 points of contact with its datum plane.

What is the difference between tertiary and inclined datum?

– The tertiary datum feature has at least one point of contact with its datum plane. The 3-2-1 rule only applies to planer datum features. One may specify a datum feature that is at an angle other than 90 degrees relative to other datum features. These are called Inclined Datum Features. Datum C corresponds to an Inclined Datum Feature…