The reality is that the Datum Plane being created is in a 'selected' state while it's being defined and as such, when you hit the '
F8' key, that's the object-of-interest with respect to determining what display orientation you're telling the system that you wish to see.
Now if you have a Spaceball, this is pretty much a non-issue once you have a known view orientation to start rotating the display from, in this case simply rotating around 90° to see the Datum Plane 'on-edge'.
Or better yet (and this does NOT require a Spaceball) while creating your Datum Plane, hit the '
F8' key and then place your cursor NEAR the left or right edge of the NX display window, and then, while holding down MB2 (Middle Mouse Button), drag the mouse up or down and you will be rotating the display about the horizontal axis of the window which will also be exactly at right-angles to the normal axis of the plane. Note that you should easily be able to rotate the display the 90° needed to see the Datum Plane 'edge-on',
and it doesn't make any difference if once you start to move the mouse that it's NOT moving in a perfect up or down direction since by you placing the cursor NEAR one of the vertical sides of the display window BEFORE you started to hold down MB2, that this indicated to the system that you wanted to LOCK the rotation angle about the horizontal axis of the window.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
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UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.