Relating the Secondary Datum Feature to Primary Datums

[@SeanMcDonnell33]

awesome stuff. thank you!

[@XiaoBuding-ol8og]

The 3 datum targets of the first datum, resulting in the 3 points forming a surface at an angle to the coordinate plane. Question: Is there any negative effect of if the first datum plane is not being parallel to the coordinate axis at too large an angle?

[@Gdandtbasics]

The (10) datum targets setting up our primary datum X create a single datum plane that will be perpendicular to the planes created by our datum targets for the secondary and tertiary datum features. The datum simulators will always be set up perfectly perpendicular to each other in this scenario even if the surfaces are not. This is how we simulate a datum reference frame.

[@dhanushshettar9168]

Could you please let me know how do we define datums between two features, at an angle ..

[@Gdandtbasics]

If I understand your question correctly, lets assume Datum Feature A is a simple plane, and you want to make an adjacent plane as Datum Feature B but that plane is at a non-orthogonal angle from Datum Feature A. If this is the case, the only thing necessary to accomplish this is to apply a basic dimension to the angled surface back to Datum Feature A. Datum Feature B could then be qualified using angularity back to datum A instead of perpendicularity back to datum A. This is no different than a Datum Feature B that is 90 degrees from A with an implied basic dimension of 90 degrees.