Monday, July 1, 2013

LEGO 4-stud PF narrow gauge train update: It Runs!

It has been a few months since my last update on this project, but oh, how far things have come since then!  I finally have a fully working 4-stud-wide, infrared RC, modern Power Functions powered train! 

After trying out a third locomotive design, I went back to the March 25th chassis and got the PF layout and wiring all tidied up.  I'm by no means 100% happy with the aesthetic of the whole train just yet, but I'm really happy with the progress and feel like it's a small accomplishment just to get a 4-wide PF train running at all!  Check it out in action:
Follow the trains topic to see the progression of this design over time!


  1. Could you perhaps do a tutorial on how to make the motor for a train like this work? I'm mostly interested in the configuration of the cogs and such things. I'm collecting the parts needed to build the 8404 tram and I got the same narrow rails you have but in black. It'd be fun to make the tram run on it. :) Oh and how did you attach the big train wheels to the cogs? Don't they usually come with this thin metal bar that you click in the wheel mount?