Free simple physics program for simple designs

[guitarguy84]

I am looking for a very simple downloadable program that allows me to create simple 2D designs of mechanical parts. One that let's me quickly create links/ pivots and move them to simulate movement. Almost like a Google Sketchup but for engineering and even simpler. I am not looking for a game with some sort of objective...just a testing program.

Thanks

 

[piyushkumar]

in ubuntu, i got this through repositories:
http://edu.kde.org/step/
just give it a try

 

[MATLABdude]

How about FreeCAD (3D) or QCad (2D)?
http://en.wikipedia.org/wiki/FreeCAD_(Juergen_Riegel)
http://en.wikipedia.org/wiki/QCad

EDIT: And welcome to PhysicsForums!