The Arburg Plastic Freeforming (APF) is an additive manufacturing process which allows the production of three-dimensional thermoplastic components in layers. The APF process manufactures components by welding numerous fine and molten plastic droplets onto the previously deposited component layer. For this welding process, it is relevant whether the previously deposited layer has been preheated by the nozzles or has already cooled down. For an ideal welding process, the aim should be to achieve the highest possible temperature level. This temperature level is influenced by the mass temperature of the molten plastic droplets and also by the temperature of the previously deposited layer. The temperature of the previously deposited layer is influenced by an active build chamber heating, but also by other temperature-dependent boundary conditions. These include, for example, the nozzle exhaust heat (thermal radiation) and the layer time (cooling behavior of the specific polymer). This publication presents the influences of temperature-dependent boundary conditions on the component properties. Using different specimen, at first the influence of certain factors on the geometric properties are determined. In addition, the influence of these factors regarding the mechanical properties are examined. The investigations are carried out using the material ABS-M30 produced by Stratasys (FDM). The results show that there are significant influences of the temperature-dependent boundary conditions on the component properties. A minimum layer time was determined, after which the mechanical and geometrical properties remain reproducible and constant. Regarding the nozzle exhaust heat, a significant influence was demonstrated depending on the component geometry. Using these results, the user of the APF technology should be able to consider the temperature-dependent boundary conditions and be capable of manufacturing reproducible component properties using a precise process control.