Translations:Assembly Basic Tutorial/28/en

The fix constraint is the simplest of all constraints. It only needs one part to be selected and then it fixes its position and its rotation. No matter what you do to this part afterwards: it will hold its place. And thats the whole purpose of that type. It's most useful to have always one fixed part per assembly, as it can be annoying if all parts get moved to satisfy other constraints. If you fix the most basic part in your assembly, all other parts will move towards it which gives you a pleasant experience. Note that this constraint works only in the assembly it is created in, the part will not be fixed in any parent assembly (remember: assemblies can be stacked).