Need help to constrain panel

[mjh310]

I posted a similar question before, but still having problems so will try to ask a different way.  I am trying to create a panel that behaves as pictured.  The corner at point 2 will always be perpendicular, but the other corners could be any angle.  I am having trouble figuring out how to constrain the reference lines to be perpendicular to the reference lines extending from reference point 2, but still connecting to the line opposite. Any tips for me? 

[mjh310]

Thanks for the idea. Let me see how to do this.

[mjh310]

Not sure I got this right, but I created a two planes and fixated the circle at their intersection which does a good job keeping the circle in place, but I can't get the crossbars to stick to the planes and the perimeter reference lines at the same time.  Maybe you have another trick up your sleeve to solve that?

[mjh310]

The problem I get is that I get a conflicting constraints error when trying to do both.

[ToanDN · Accepted solution]

Try this.  It works here.

[mjh310]

You did it!  Thank you so much.  I have to look at what you did so if I run across this again I know what to do.

[mjh310]

I see now what I was missing.  Key for me was using Host by Intersection to constrain the points at the intersection of the perimeter reference lines and the new planes that define the location of the circle.  I then placed reference points at the quadrants of the circle and connected reference lines for the crossbars. I fumbled around for awhile, but got the hang of it now.  For some reason the properties for my points look a bit different than yours, but so far it seems to work well. Thanks again for all your help.