Method for manufacturing moulded parts from fibre composite material, comprising the following steps: a) providing a press with - a first pressing tool , - a second pressing tool , and - a membrane , - wherein the first pressing tool and the second pressing tool can be moved relative to one another, - wherein the membrane is connected to one of the pressing tools , - wherein a cavity for a working medium is formed between the membrane and the pressing tool connected thereto, - wherein a working space for a workpiece is formed in the other pressing tool , and - wherein, when the press is closed, the volume of the working space can be changed by moving the membrane , b) providing at least one workpiece with a workpiece volume (V W1 , V W1 '), wherein the workpiece has a matrix and fibres inserted therein, c) inserting the workpiece into the working space of the press , d) closing the press , wherein the working space occupies a first volume (V 1 , V 1 '), e) applying pressure and/or temperature to the workpiece by means of the membrane , wherein the working space occupies a second volume (V 2 , Vz`) and wherein a hardened moulded part is formed from the workpiece , and f) opening the press and removing the moulded part, characterised in that the first volume (V 1 , V 1 ') of the working space is smaller than the workpiece volume (V w1 , V w1 ') such that the workpiece is already compressed in step d) and before step e). a) providing a press with - a first pressing tool , - a second pressing tool , and - a membrane , - wherein the first pressing tool and the second pressing tool can be moved relative to one another, - wherein the membrane is connected to one of the pressing tools , - wherein a cavity for a working medium is formed between the membrane and the pressing tool connected thereto, - wherein a working space for a workpiece is formed in the other pressing tool , and - wherein, when the press is closed, the volume of the working space can be changed by moving the membrane , - a first pressing tool , - a second pressing tool , and - a membrane , - wherein the first pressing tool and the second pressing tool can be moved relative to one another, - wherein the membrane is connected to one of the pressing tools , - wherein a cavity for a working medium is formed between the membrane and the pressing tool connected thereto, - wherein a working space for a workpiece is formed in the other pressing tool , and - wherein, when the press is closed, the volume of the working space can be changed by moving the membrane , b) providing at least one workpiece with a workpiece volume (V W1 , V W1 '), wherein the workpiece has a matrix and fibres inserted therein, c) inserting the workpiece into the working space of the press , d) closing the press , wherein the working space occupies a first volume (V 1 , V 1 '), e) applying pressure and/or temperature to the workpiece by means of the membrane , wherein the working space occupies a second volume (V 2 , Vz`) and wherein a hardened moulded part is formed from the workpiece , and f) opening the press and removing the moulded part, characterised in that the first volume (V 1 , V 1 ') of the working space is smaller than the workpiece volume (V w1 , V w1 ') such that the workpiece is already compressed in step d) and before step e). <EOS>