This dataset contains synchronized force measurements recorded at the hotend during extrusion-based additive manufacturing (FFF 3D printing), along with the Python code used for data acquisition. The data were collected using specially designed test specimens to investigate the influence of misconfigured print parameters—such as extrusion multiplier, print speed, nozzle temperature, line width, and layer height—on the acting hotend forces. The dataset supports the study "Force-Based Process Monitoring in Extrusion-Based Additive Manufacturing" and provides a foundation for further research into process monitoring and control based on real-time force feedback.