Övning ger färdighet: hur övning och reflektioner påverkar utförandehastighet vid tillverkning av träförbindningar

Abstract

This thesis examines how practice and reflection affect the execution speed in timber framing, focusing on a specific joint, the ”under squinted stop splayed scarf joint with table”. The aim of this study is to explore how these factors can improve the work process and assist in more accurate time estimations for future timber framing projects. The study was carried out through eight practical craft experiments, where data was collected and analyzed based on two key concepts: Logistics and Methodology. Logistics refers to the time spent on tasks such as moving tools and materials between work steps, while Methodology focuses on the time spent on the hands-on tasks, including marking, sawing, and fitting. After each experiment, reflections were made to identify how to streamline the next procedure. The results clearly demonstrate a reduction in total time, with the average time to complete the scarf joint decreasing from approximately 45 minutes to 27 minutes. The most significant time reductions were observed between experiments 5 and 6, where changes in methodology and reflection between each attempt led to more efficient workflows. In experiment 5, a shift from a hand saw to a circular saw for certain cuts resulted in a time saving. By experiment 6, further efficiency was achieved by using a mallet to remove material instead of chiseling it out, which further reduced time consumption. This study emphasizes the importance of refining both methodology and logistics to increase execution speed. It also highlights how reflection after each attempt contributes to continuous improvement. The results show that experience and practice play a crucial role in enhancing work processes, which can be valuable when estimating time for future timber framing projects.