How can I make the "arm" pull to the left, so it will connect with the flange?
We are going to connect a spring between the 2nd hole and a bracket (in the cover) - this will force the arm to connect with the flange - not sure if that is possible with SE.
I made a small video to show my problem:
I would like to say, that this will not be possible with standard SE functions, maybe with additional construction surfaces and extra relations.
It could be worth to take a look into Simply Motion.
There springs can be defined as well as contacts.
But all has to be considered more in detail.
I can imagine that a Path relation will do that for You!
Connect the outest edge of Your arm to the edge path of Your flange
I just tested this with a different assembly where YOu can connect a line/edge to the chained edge of another part and now You can move that along it.
Maybe it is not 100% exact in Your case, if not only the edge is touching the flange, but then YOu have to use a Cam relation