The assembly functions enable an assembly to be constructed by including parts, profiles or sub-sets. This component inclusion complies with a positioning. The assembly can also create parts in place, which will "depend" on the surrounding geometry.

Parts, sub-sets and library components can be included in an assembly.

Each item inserted in the assembly will be positioned by constraints, the objective being to remove the degrees of freedom (1 translation following X, Y, Z and a rotation around X, Y and Z) required for its positing. Until the 6 degrees of freedom have been deleted by the constraints, the part or the sub-set can move.

Most of the commands used to define and manipulate an assembly are located in the 'Assembly' menu and will also be very practical to us the content of the 'Constraints' folder in the entities tree, which will contain all relevant information on the constitution of the constraints being defined.