symmetrical movement of two parts

Hi @opavot1 ,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution or please feel free to detail in a reply what has helped you and mark it as the Accepted Solution. It will help other members who may have the same question.

Of course, if you have more to share on your issue, please pursue the conversation.

Thanks,

Dear All

many tanks for your support but the explanations are not clear enouht for me and the files in the ZIP are emply .

Can you provid me an example 

O.Pavot

You waited 10 months to respond and in the interim the person who responded to you has retired.

The idea suggested by ​@Van_AG  is a nice simple method:

1. Assemble the arm on one of the sides of your assembly, at an angle to the “top” face of the main block.
2. Define a plane that goes thru the axis through the hole at the outer end of the arm, parallel to the “top” face.
3. Assemble the second arm on the other side. Coincident rotation hole/shaft, but this time you have to make the axis at the center of the outer hole be coincident with the plane created in step 2

Now when you change the angle of the arm assembled first, it should also affect the other arm that is constrained to have its end hole coplanar with the first arm.

This method is based upon the assumption that both arms are the same length, etc.

Dear All

Sorry for my late answering to my fist request but I was out of my society

Now , I have tested the  idea of VAN AG and it word 

Many thanks for your help

O.Pavot