3D-printed experimental devices for teaching dynamical systems in physics
We present the design, construction and classroom use of 3D-printed experimental devices aimed at introducing dynamical systems in physics courses. Theoretical, technical and pedagogical criteria are proposed for producing low-cost, modifiable resources suitable for experimental work. Three devices are analysed as examples: a magnetic pendulum, a wooden woodpecker toy and a double pendulum. The suggested activities are organised around prediction, observation, comparison between configurations, and the elaboration of physical explanations. The main contribution of this work is to show concrete implementation possibilities in secondary education, pre-service teacher training and introductory university courses, together with a discussion of the scope and limitations of 3D printing in experimental teaching.