MrJ HO scale DB Signals Era III - 3x faces

What's this? What for?

This is my own project for building model railway HO scale (1:87) Deutsche Bundesbahn (DB) style Era III (1945-1970) Train Signals following this specification.

This is part of a complete project involving:

• 3D printing (these pages)
• Electronics (PCB design and soldering) (github)
• Arduino code (demo, DCC and JMRI integration) (github)

All these parts are my creation I'm happy to share with you.

ATTENTION: this is not a beginner's project. It requires 0.2mm nozzle and Smooth PEI Plate all originals parts from Bambu.

It pushes the A1 to its limits in small detail printing and precision.

Short specifications

• High details 3D printing for signals faces and mast including caps without need of support and glue
• 3 signal faces for entry, bloc and exit signals as described here.
• PCB design for easy soldering and use of charlieplexing in order to reduce wires required (2 to 4 wires)
• Arduino for easy, flexible and cheap management
• JMRI and DCC integration
• Smooth fading effects for switching on and off as demonstrated in my POC on github
• variety of panels for signaling

Is this final? Commercial?

• 3D models are final, printed, tested in real life.
• PCB is final (v3).
• Panels are easy to print and attach. Other panels can be built. Please ask.
• Arduino code is available

This work is free for use. Please respect the License

Questions and Support

I'm always happy to answer questions with kind comments. Do not forget this is free but time-consuming.

If you want to support me: paypal.

A boost is always appreciated!