During construction, it also became apparent that wood is a far less predictable material than steel or concrete. Each element possesses a unique arrangement of grain, knots, and internal stresses, as well as an individual response to moisture. Consequently, two seemingly identical components might behave differently once installed in the structure. This phenomenon was particularly evident in the large components of the water wheel and in the structural joints.

For this reason, the construction of the “Rurmus” adopted an approach combining historical carpentry techniques with modern safety standards. A primary objective was to showcase traditional carpentry methods; thus, extensive use was made of traditional joinery—such as mortise-and-tenon, notches, interlocking joints, dovetails, and wooden pegs.

At the same time, additional bolted connections were employed in specific locations. This applied primarily to the most heavily loaded components and to parts constantly exposed to moisture and the fluctuating forces generated during the device’s operation. Such reinforcements were used most extensively on the water wheel, which is subject to the greatest loads during operation.

The decision to use additional bolts did not stem from a lack of confidence in traditional construction methods. On the contrary, historical carpentry joints have proven their effectiveness over centuries. However, it must be remembered that builders of the past operated in a completely different context. In the past, user safety was not governed by modern regulations, technical standards, or occupational health and safety requirements. Today, the structure is intended for use by tourists, children, and school groups; therefore, the level of safety measures had to be appropriately increased. The adopted solution strikes a balance between historical reconstruction and a modern approach to safety. This made it possible to preserve the character of the original structure while ensuring a high level of durability and operational safety.

Observations made since the device was put into operation show that the *Rurmus* is not a static assembly but a dynamic technical system that responds to water volume, weather conditions, and the natural behavior of the wood.

Every element influences the operation of the whole, and changes occurring in one area may be visible in other parts of the mechanism.
Consequently, the *Rurmus* serves not only as a functional piece of machinery but also as a unique educational tool. It allows for the practical observation of the relationships between water, energy, mechanical motion, and the behavior of large wooden structures. It is precisely this opportunity for direct observation that enables the device to fulfill an important educational role, offering insight into the technical solutions employed by our ancestors.