[MOC] Baureihe 89.8

[Thomas Waagenaar]

Hello!

I've already posted this on Reddit, but no shame to post it again here, right? I've finally updated and cleaned my Flickr page soooo...

 

Either way, I would like to present my Baureihe 89.8 in Bavarian colour scheme. I tend to find the standard 1925+ colours kinda boring, but these classic dark green, blue, red etc etc tones really speak to me!

The model is in roughly 1:48 scale, with some creative liberties here and there. And it's powered by two Circuit Cubes in 1:1 gear ratio. Scale wise it hobbles along at a comfortable and consistent 30 km/h with this.

I've designed and 3D printed my own wheels and valve gear, which allowed me to do it with this level of detail and accuracy. Some might find it too detailed, but I think it fits well with the model compared to an otherwise simplistic rod system. A video of it in Motion can be found here, on my Flickr page: 

 

It has functional front and rear lights as well! Everything controlled from the Circuit Cube.

The stickers are made and printed by Brickstickershop here in the Netherlands. I definitely recommend them, great quality and excellent customer service as well!

 

Feedback and comments for future projects is ofcourse welcome and appreciated! 

Edited January 4 by Thomas Waagenaar

[Shiva]

Nice locomotive :)

[Thomas Waagenaar]

7 hours ago, Shiva said:

Nice locomotive :)

Thank you! 

[TeddytheSpoon]

Nice model! Attractive loco. Is that a high-voltage warning sticker on the boiler service hatch?

[LL1982]

Always amazed at what people can do for steam engines. I like the custom rods. maybe not lego or such, but it looks amazing. I did not know CC had lights, may need to get those if I ever can get my kid to give me the motors for use :D

 

[Ts__]

Cool and cute!

 

39 minutes ago, LL1982 said:

I did not know CC had lights

A Circuit Cube has 3 channels with a voltage of -4.5 V to 4.5 V. Of course, instead of a motor, you can also solder LEDs with a suitable series resistor. I did the same with my Köf II or my trucks.

Thomas

[Thomas Waagenaar]

4 hours ago, TeddytheSpoon said:

Nice model! Attractive loco. Is that a high-voltage warning sticker on the boiler service hatch?

Thank you! Yes it is, I don't know why it's on the locations it is, probably electrical boxes or generators that they placed in those areas, but the prototype has those warnings there, haha

 

4 hours ago, LL1982 said:

Always amazed at what people can do for steam engines. I like the custom rods. maybe not lego or such, but it looks amazing. I did not know CC had lights, may need to get those if I ever can get my kid to give me the motors for use :D

 

Thankssss!! Yeah, making the rods like this is actually one of the reasons I got into 3D printing as well. Especially since none of the options out there gave me exactly what I wanted for a in my opinion reasonable price compared to doing it myself, and the best part is also access to unlimited spares if I break them accidentally 😅

For the LED's it's like Ts_ said below:

3 hours ago, Ts__ said:

Cool and cute!

 

A Circuit Cube has 3 channels with a voltage of -4.5 V to 4.5 V. Of course, instead of a motor, you can also solder LEDs with a suitable series resistor. I did the same with my Köf II or my trucks.

Thomas

Thank you! Glad I'm not the only one who finds these small locomotives cute! Haha

To be fair, I didn't even solder them either. I just wrapped the red LED around a 10k and the 3 white LED's around a 680 and the legs of the resistors wrapped together too. That allowed me to have use the remaining 2 channels for the front and rear light options, as it can present the same lights in either direction ofcourse.

[Ts__]

Yes, two channels are enough for full light with different white/red lights.

My set up:

Channel A: Motor

Channel B: + front white light / - front red light

Channel C: + rear white light / - rear red light 

This allows you to switch the red lights on/off separately as required and switch the white lights to match the direction of travel.

 

Thomas / Ts__

Edited January 5 by Ts__

[Thomas Waagenaar]

40 minutes ago, Ts__ said:

- Snip -

I have it set-up so the rear is always red if the lights are on, because that way I can also have yellow on on both sides, as during shunting we run yellow on both sides in real life

So when I'm playing shunting, I just turn on all the yellow lights and they're bright enough to overpower the red ones in that regard so the red isn't visible at all

[Sven J]

Cute little model!

2 hours ago, Thomas Waagenaar said:

Yes it is, I don't know why it's on the locations it is, probably electrical boxes or generators that they placed in those areas, but the prototype has those warnings there, haha

These signs are there to remind/warn the crew not to climb onto the boiler (e.g. for refilling sand) when the loco is standing beneath overhead wiring on electrified lines.

[Thomas Waagenaar]

10 minutes ago, Sven J said:

Cute little model!

These signs are there to remind/warn the crew not to climb onto the boiler (e.g. for refilling sand) when the loco is standing beneath overhead wiring on electrified lines.

Thank you!

Ahhh, that explains why it's mostly next to either refill locations or steps! Didn't know that, the more you know, haha. Thanks! :D

[idlemarvel]

Beautiful model. And the fact it actually runs is the icing on the cake. Good job with the Circuit Cube. Well done.

[Feuer Zug]

Sweet little locomotive. The design itself is a good one. Adding the Circuit Cubes motor and lights really makes it a gem.

[LL1982]

Thanks for sharing that insight on the lights. Last time I used a solder was in high school, seems like a thing I can look into one day. Understand you went 3D printing for certain parts. When I see all those custom wheels you guys have I fully get that. Wish that was easier available. 

[Thomas Waagenaar]

3 hours ago, idlemarvel said:

Beautiful model. And the fact it actually runs is the icing on the cake. Good job with the Circuit Cube. Well done.

Thankss! 

3 hours ago, Feuer Zug said:

Sweet little locomotive. The design itself is a good one. Adding the Circuit Cubes motor and lights really makes it a gem.

Thank you!

2 hours ago, LL1982 said:

Thanks for sharing that insight on the lights. Last time I used a solder was in high school, seems like a thing I can look into one day. Understand you went 3D printing for certain parts. When I see all those custom wheels you guys have I fully get that. Wish that was easier available. 

It's not as difficult as people sometimes make it look like, haha

I'm currently working on a Baureihe 70.0, and if I get to the part with the LED's, I'll make some pictures on how I've done it! No soldering required either. ^^

[zephyr1934]

That little shunter looks great. Or more precisely, both the prototype and your interpretation of it are top notch. And you even have the controller in the cab where it belongs (grin)

[LL1982]

Thanks @Thomas Waagenaar. Waardeer ik. 

[Thomas Waagenaar]

On 1/6/2026 at 3:51 AM, zephyr1934 said:

That little shunter looks great. Or more precisely, both the prototype and your interpretation of it are top notch. And you even have the controller in the cab where it belongs (grin)

Thank you! I actually tried to have a small cab interior too, it's there but hidden by the Bluetooth cube-driver, hahaha

12 hours ago, LL1982 said:

Thanks @Thomas Waagenaar. Waardeer ik. 

Geen probleem! I'll write it on a sticky note so I hopefully won't forget, haha 🫣

[LL1982]

Maybe a dumb question, but I recently got these motors too. Could you not mount the motor between two technic beams directly at the level of the wheels? The motor could then directly drive an axle.  Motor is 2 studs wide, so with the beams its still 4 studs. The cube could then be mounted on the technic beams and be mounted more at a position where your cab is and the boiler starts? Or the coal box (if I am correct). That could give you an interior right?

At least that was my idea for this Christmas break to make a Sik via above route (before my kid negotiated to keep the remote car in one piece :D ). Sorry that I do not know the official train name, but the Sik is a small Dutch shunter locomotive and could not imagine how to run it independent with a regular train motor due to the hub. When I saw the cubes, I was like those will help me make a Sik. 

[Thomas Waagenaar]

1 hour ago, LL1982 said:

-Snip-

Yeah, I've got them in-between the frame too! But I've stacked the two motors on top of eachother to leave space for wiring at the front because when I was building it I had an insane idea... But I'll leave that idea for later, haha

Technically there is still space for the cube to be hidden as well, but this way it just lets me pull out the cube easily for recharging and turning on/off, as I can just pull off the roof.

A Sik wouldn't be too bad that way either! But to get the right proportions you'll probably only get a single motor in there, which is fine for a small shunter like that!

But for mine, I really wanted the two motors in there as it's also intended as a local freight locomotive

And that sounds like it's time to buy another CC box! Haha

[LL1982]

Yeah good point on turning it on/off and the power. That switch is very small. 

The SIK will have a single motor indeed I think, it is not a very big shunter and indeed intended to pull a wagon or two. I use a NS600 as a freight locomotive, but it does not really run well on a PF motor M. I intend to upgrade to a NS2200 and use the regular train motor. And indeed I need to consider another CC box.

[Thomas Waagenaar]

10 hours ago, LL1982 said:

-Snip-

You could always try upgrading to a 3rd party motor, like the CaDa ones?

Same for the 2200, it should be able to fit two L motors in the hood, one on either end I think? Less speed but more power than the standard train motors, just less speed, but you don't really need that with a freight train 😅

[LEGO Train 12 Volts]

Beautiful steam locomotive, the part I like most is the moving valves: excellent work with the 3D printing. 

The lights and the engine inserted in such small spaces are the icing on the cake! 

That dark green livery must have cost a fortune...I speak from experience. 

[Thomas Waagenaar]

14 hours ago, LEGO Train 12 Volts said:

Beautiful steam locomotive, the part I like most is the moving valves: excellent work with the 3D printing. 

The lights and the engine inserted in such small spaces are the icing on the cake! 

That dark green livery must have cost a fortune...I speak from experience. 

Thank you very much! 

Honestly the challenge to build so small is amazing, whilst my next project after the 70.0 that's almost done, will be a Baureihe 56.2 (Prussian G8.2),
I kinda want to build some even smaller locomotives with the same functionality, haha
These small locomotives just have something that really speaks to me for some reason, and it's hard to choose!

To be fair, I ditched most of the really expensive dark green parts. Though I did accidentally order 2 1x3 bricks because I forgot to check the prices for those... So the cost of this locomotive, without any of the electronics/3D printed parts, is only around 60-70 EUR, excluding shipping at the time of writing this. So could be a lot worse! But I really wish they'd make some parts again, because choosing between structural rigidity and looks isn't my favourite part! Haha
 

[LEGO Train 12 Volts]

I just finished assembling a small Polish steam locomotive (very similar to this one), I spent similar amounts but I also managed to recycle some dark green Bluebrixx pieces which are compatible and much cheaper than the Lego ones!