This is my interpretation of the operation of a single bit of memory as used in the Zuse Z1 and Z2 programmable calculators, and later for the Z4 computer. Most information is from pages 218-221 in the book described below. The original Z1 is designed and build in 1936-1941. The replica/redesign is build by Konrad Zuse in 1989.
The original described parts are simple metal strips and a pin (red, blue, yellow and middle gray parts), I added the guides and end stops. In the actual machine the parts will be different and integrated. This model is only to demonstrate the principle, not to resemble the original (destroyed) or replica (Deutschen Technikmuseum, Berlin, Germany: https://sdtb.de/museum-of-technology/exhibitions/1256/).
Die Rechenmaschienen von Konrad Zuse/Hrsg.: Raul Rojas. Mit Beitr. von F.L. Bauer, H.Dorsch, H. Petzold, R. Rojas, G.-A. Thurm und G. Widiger sowie zwei Patentschriften von Konrad Zuse
Springer-Verlag Berlin Heidelberg 1998
See the "Custom Section" for a description of the animations and the "How I Designed This" section for animated GIFs.
any brand, PLA, but any rigid filiament will do
Some post-print filing is required to make the parts fitting and easy to operate.
Assembly of the memory cell
The parts are designed in OpenSCAD, source files are included.
Most parts have a dependency on the speicherPrimitieven1.scad file.
write 1 (from 0)
write 0 (from 1)