Parallelism(Pitch) w/respect to Specific Angle(Yaw)?

[Bewler]

I have multiple objects that are stacking together. I realized parallelism doesn't specify the positive or negative angle of parallelism so objects may be acting in the same parallel stack or against each other.
1.)Is there a way to specify the positive or negative angle of parallelism?

The more complicated question is based on a mounting surface. If I callout the parallelism the mounting piece could have angular(pitch) directed anywhere in 360 degrees of yaw. Is there a way to control a specific plane with angular orientation of parallelism for a part so for example, "45 degrees in the XY plane, part N will be parallel in the positive direction less than .XXX"?"

 

[IRstuff]

Are you asking for something different than specifying +xxx -yyy?

Not that you'd likely get compliance to something like that.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[moon161]

Sounds possibly expensive but I would spec parallelism such that my worst stackup would be acceptable or change the design. You might look at reducing or combining elements in the stackup.

 

[IRstuff]

What parallelism spec are you trying to hit? You can spend lots of money lapping, or you can measure and shim.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm