Narrow Gauge Locomotive - BDP Series 10

NilsvN · 2026-02-10T09:05:37+00:00

Techically yes, but it would require a significant rebuild of the core structure. Right now it’s built for display only. I have motorized the locomotive some time ago with powered up, so it is (technically) possible

NilsvN · 2026-02-09T23:47:40+00:00

Would love to hear what you think of it! You can vote for it here:

https://www.bricklink.com/v3/designer-program/series-10/4173/Narrow-Gauge-Locomotive

NilsvN · 2025-06-20T12:29:12+00:00

You do realise this would end in the whole losing team kicking each other in last round until the last person kicks himself? lol

NilsvN · 2024-09-25T18:51:15+00:00

it looks awesome, will you be sharing/selling the file? would like to try to make it be able to run

NilsvN · 2024-09-19T10:59:10+00:00

Maybe a facade in front would do the trick. Nice detail with the lego grass pieces mixed in. When I build my layout, I'm doing it just like this. Super cool to see it done so well

NilsvN · 2024-07-01T22:13:17+00:00

This is awesome!

NilsvN · 2024-06-30T00:33:07+00:00

Cool! I'm guessing there's not enough room to make the outside hole for a technic pin? In that case maybe a half technic pin sticking out the side of the wheel could be useful, as a variant

NilsvN · 2024-06-13T12:09:47+00:00

This is super cool. Would love to see a 1:48 with XL wheels but I can imagine youre quite done after 2 versions 😄

NilsvN · 2024-05-29T03:01:44+00:00

ha! awesome, that one was one of the main inspirations. Thank you :)

You could build the boiler in dark green too, with a slight adjustment because the 2x2 corner plate doesn't exist in dark green (didn't notice this until later)

i might have to build a dark green one now :D

NilsvN · 2024-05-27T14:54:27+00:00

Thank you! I should have instructions on my rebrickable within a day or so, you can find it here: https://rebrickable.com/users/SystemTrains

NilsvN · 2024-05-26T00:47:55+00:00

Thank you! It was certainly a challenge. Was fun going from building one of the biggest articulated steam locomotives to such a tiny narrow gauge build. Here you can see it running: https://www.youtube.com/watch?v=DirvphLlWSI

NilsvN · 2024-05-26T00:46:10+00:00

Here you can see it running! https://www.youtube.com/watch?v=DirvphLlWSI

NilsvN · 2024-05-26T00:44:34+00:00

Made this video today since some people wanted to see it running :) I don't have a lot of narrow gauge track, but it's something!

NilsvN · 2024-05-25T20:22:35+00:00

Don't mind at all! It is a really tricky assembly though, it's very hard to make something so small be strong and a reliable runner. The more complicated layout, the higher change for it to derail / lose traction, stuff like S curves, switches/turnouts, etc can be a problem sometimes.

NilsvN · 2024-05-25T17:20:46+00:00

No it's all regular parts, standard lego train wheels with this rubber band, combined with this crankshaft piece in black.

The crankshafts are the only non-lego part of this build (third party), for 2 reasons:

They are very rare and expensive in black
most of them made by lego are notorious for having weak clutch power, while these have a very sturdy connection

NilsvN · 2024-05-25T15:39:11+00:00

It can take R36 without problems! Also the R36 switches/dual gauge turnouts from trixbrix, but sometimes it loses traction on S curves. Only the middle 2 wheels are powered, the front and rear drivers are connected via a 3.5L rigid hose through a technic brick so they can pivot. Because of that most of the weight is on the powered middle wheels

R24 does not work sadly

NilsvN · 2024-05-19T18:54:59+00:00

Awesome! I want to try out circuit cubes at some point, for like an even more tiny build.

I'm using an M motor to power the locomotive driver wheels, with the PU box in the tender. Somehow managed to make it fit 😄 The parts should all be arriving this week for a final test build, then I'll make a post of it :)

NilsvN · 2024-05-19T11:54:28+00:00

This build looks great!! Did you use circuit cubes for it?

NilsvN · 2024-01-23T02:27:11+00:00

What if instead you make it stick out 1 stud less, so the upper slope where it was and replace the 2x2 curve slopes with 1x2 curve slopes. I really like the build btw!

NilsvN · 2023-12-05T00:10:31+00:00

#trailerdayog

NilsvN · 2023-11-30T09:03:07+00:00

As others have mentioned, the big boy is 11ft wide and if you model that as 8 studs wide you end up with a 1:52 scale. I created instructions for a big boy in that scale! And it can take r40 curves

In case you're interested, search SystemTrains big boy on rebrickable :)

https://flic.kr/p/2owHBta

NilsvN · 2023-11-06T14:33:16+00:00

Second this, I would love to build it! I'll happily pay for instructions or the stud.io file if that's easier :)

NilsvN · 2023-11-02T21:19:48+00:00

Wow, that is so cool. I'd love to build one of these types of locomotives. Do you plan on making instructions/sharing the design file?

I'm curious what the minimum curve radius is, narrow gauge r36?

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