At first, 3D printing FDM printers were limited to printing one filament at a time because there was only one nozzle. With the development of double extruders in recent years, the printout can print parts consisting of two or more materials. With the ability of a double extruder printer that still has to maintain and care for both extruders, it will take up quite a lot of time. Therefore, developing a 3D engine design using the VDI 2221 method is necessary. The VDI 2221 design method is used to solve problems and optimize the use of materials and costs. Based on the selection of design concept variations, the third variant shows the highest percentage, which is 91.67% from a technical point of view and 100% from an economic point of view, which has the potential for more straightforward repairs and lower costs. For the clip power window measurements, the average length value is 98.47%, width is 99.92%, T1 is 99.87%, T2 is 99.2% mm, and weight is 99.31%. Weight measurement in clip power window products is essential because the heavier a product is, the more filament needs will also increase. Based on the tensile test results, the most considerable tensile strength value is 32.95 MPa, with a maximum infill of 100% and an average value of 31.59 MPa. So it can be concluded that the modified 3D printer design results have the potential for more straightforward repairs and lower costs.