Thank you! It works fine. If you dont mind me asking, what does making the desk as a box do?

Hi! Im kinda new with SketchyPhysics and would appreciate any help. Im trying to make a simple murphy bed model with desk and i am having problem with the joints.

The way it works is if the bed is folded up the the table is set and when you put down the bed the table acts as a leg. I have attached my file. please disregard the measurements, i just want to learn how to do it and where I am making the mistake.

Thank you in advance for your help!

Murphy Bed.skp