the invention relates to a method for producing objects and object parts formed by an assembly comprising at least two plastic parts , which can move in relation to one another with at least one degree of freedom and which are provided with surfaces having at least partially complementary shapes such that , in at least one geometric configuration , they are solidly interconnected on a common surface in close , clearance - free contact the inventive method comprises the following steps : 1 ) molding of a first part by compression or injection ; 2 ) removal of the second tool , the first part remaining solidly connected to the first tool which serves as a piece of support equipment or is installed on a piece of support equipment ; 3 ) compression molding of the second part using the whole of the first part which is integral to the support equipment and a third tool ; 4 ) removal of the first support tool and the third tool and extraction of the assembly thus formed .