MrJ moving cars v3 - 200mm roads - HO scale

Me & the project

I'm building a small train diorama as a hobby, HO scale, epoch III, central europe.

As a software engineer with some *electronic skills burning my fingers* as well as a strong background in 3D printing, I'm building and designing many of my needs including bridges, houses, motor mounts, signals, pillars, etc. using Arduinos and digitizing almost everything.

Having a moving train but static cars wasn't acceptable. So I needed a system to move my small Norev] cars.

Owner of a wonderful multi-color printer, I've started building my own system as proposed here.

This system is using magnets, arduino and servo.

For any questions or wishes, feel free to ask me

Available parts

Search for tag mrjroadv3 for other parts:

• road chains
• crossings
• tunnels
• roads small parts
• technical parts
• parkings
• roads 100mm length
• roads 150mm length
• roads 200mm length
• roads 300mm length

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Updates and Changes – Magnetic Chain Road System for HO Scale Diorama (v3)

What's New in Version 3:

• Simplified Road Profile**
   Redesigned road profile makes it easier to build new shapes and layouts.
• New Attachment System**
   Features a beveled edge that simplifies assembly and ensures better alignment.
• Wire-Friendly Crossings**
   Special crossing profiles allow technical wires to pass underneath.
• Smaller, Reinforced Drive Plate**
   Reduced size for easier integration and increased durability.
• Revamped Drive Mechanism**
   - Optimized height for better servo alignment
   - Reinforced plate
   - New coupling gear between the toothed wheel and the servo motor
   - Designed to accommodate a mounting screw through the servo and includes extra holes for secure attachment
• Various Curves Available**
   Curves come in 100 mm, 150 mm, 200 mm, and 300 mm radii.
• Multiple Layout Elements**
   Includes different styles of crossings, parking areas, and tunnels.
• Seamless Road Connections**
   Roads feature a subtle “lip” that makes joints nearly invisible once assembled.
• New, More Compact Storage Magazine**
   Redesigned magazine takes up less space without compromising functionality.

Printable Templates Included

PDF templates provided for easy custom layout construction.