FreeCAD to design moving parts I am trying to create a mechanism with moving parts, and would like to see how it works (whether it even works) before printing it.

For example, there's a servo with a bracket, and I would like to see how far can the bracket move before colliding with other objects.



Unfortunately I cannot find any information on how to set pivot points and rotate objects around these points in FreeCAD. Is this even possible?
freeCad has a draft rotate function in DRAFT workbench:


Select an object;
Press the Draft Rotate button, then;
Click to set the rotating point and rotate. 


You will get used to that after a few trails.

There is a step by step guide on freeCad site.

There is also a short demo of the function here.