In my presentation—done in English, but where questions can be posed in German since I am a fluent speaker—I want to present the ways in which we have worked with 3D modeling (parts of) Christopher Polhem’s mechanical alphabet. Our 3D-metamodeling has been conceived as both a scholarly and as a museological practice. On the one hand we have tried to increase the historical understanding and knowledge about (and around) Polhem’s models via visualisation, virtualisation and simulation, and on the other to experiment with novel ways to use the model’s inherent pedagogical quality, and especially so within a museological context at the Swedish National Museum of Science and Technology. We have for example 3D scanned some of Polhem’s models using a simple iPad iSense 3D scanner—and where we have also 3D printed some of our resulting imagistic models (with moving parts). Some of these digitisation activities have been performed within the actual museum space as a pedagogical activity, stressing the ways in which Polhem’s old models still have a didactic quality to them. In addition, we have designed a few simple <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">virtual reality models</hi> (of the models). Furthermore, in co-operation with Visualiseringscenter C (at Linköping University) we have also CT-scanned some of Polhem’s models—i.e where images are taken from different angles to produce a cross-sectional and tomographic 3D image, a kind of virtual slice, allowing one to see inside the models without breaking them. Digital geometry processing has, in short, been used to generate a three-dimensional image of the inside of the models and their different parts. We have also co-operated with the professional animator Rolf Lindberg; on YouTube he has uploaded a number of videos of Polhem’s models (Lindberg 2016). Lindberg, however, did not 3D scan Polhem’s mechanical models—he <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">computer-animated</hi> them in Cinema4D.