Constraints are not setisfied

[huyenphuong1302]

Hi there,

I had some problems with Constraints are not setisfied. It didn't work. I uploaded it here looking for someone to help me understand why. Can

you help me please!?

Thanks 

16656159376724083878341816885911.jpg

 

[ToanDN]

In a nutshell:

1.  Use Reference Line, not Reference Plane, to constrain rotation
2. Model the part that needs to be rotated in a different face based or work plane family, nest it in the parent family, host it on the Reference Line's plane
3. This is just a repeat of 2 for maximum effect:  Host the nested family on the Reference Line's plane, this is different than aligning it with the reference line

[barthbradley]

Make the angled Ref. Plane a Ref. LINE and then host the extrusion to the Ref. LINE Workplane.   Understand?  

https://knowledge.autodesk.com/support/revit/learn-explore/caas/CloudHelp/cloudhelp/2021/ENU/Revit-C...

...there's also videos on-line that you can find through a Google search using the keywords you learn in the above article.