Model for 3D printing of signal levers used in mechanical interlocking of type Einheit, common on German and Polish railways. Model allows building a model of a single or a coupled lever.

Model for 3D printing of an anti-reversing ratchet required for standard signal levers actuating rotation interlocking cams (parts of line or station block system).

Model for 3D printing of coupling rollers used in mechanical interlocking of type Einheit for coupling of pairs of signal or lock levers. The model contains additional parts required for special mounting cases.

Additional tools and templates required for building the model of a mechanical interlocking.

Model for 3D printing of a lever frame with interlocking box, as used in standardized mechanical interlocking (type Einheit) on German and Polish railways. Model contains parts for building a lever frame for 8 or 17 levers and up to 16 interlocking sliders.

Dwarf semaphore signal of standardised form utilized by German and Polish railways. Different build variants are included.

Signal gantry of the unified type designed for setting up to four mechanical signals, utilized by German railways, also present on Polish railways.

Model for 3D printing of a standardized points lever utilized in mechanical interlocking of type Einheit, commonly found on German and Polish railways. The model can be assembled as fully functional, including the emergency decoupling mechanism.

Signals and indicators of German Railways (Deutsche Reichsbahn-Gesellschaft, later Deutsche Reichsbahn) valid from 1935 till 1945, also utilized on occupied territories during World War II.

Standardized derailer utilized by Polish and German railways. The model contains parts for building the device in different variants: right or left derailer, derailer operated manually or via rod or wire transmission, single or coupled derailers. Model contains parts to assemble the derailer signal lantern.