[MOD] Bombardier Talent (using set 7938)

[Phil B]

I know many people have used set 7938 Passenger Train to build a LEGO version of the Bombardier Talent EMU/DMU; here is mine. I didn't want to necro-post in one of the existing threads, but if I were to, I would have posted here, in cimddwc's thread as that is where I got most of my inspiration from as I was researching certain aspects of this train. My version differs in several ways though:

1. I wanted to keep the original train bases as part of my design (@cimddwc used a custom base to enable his doors to work)

2. I did develop an opening door, but to make it work with the train base I had to have part of the door stick out by 1.5 LDU which ruined the look of the overal consist, so I dropped that plan.

3. I didn't like the folded paper harmonica between the carriages in cimddwc's design, so I came up with a different Jacobs bogie design which makes the train look connected from front to back. Thanks to some sideways brackets there isn't even a gap!

Here are some pics and a video (on Flickr) showing the model in action. There is some wheel slippage, likely because some of the Jacobs bogie wheels are not rotating freely enough. I think I can fix that (either loosening them up a bit, or switching to ball bearings. or even adding a second motor into one of the bogies).

7938 as Bombardier Talent by Phil B, on Flickr

And the video:

 

Edited November 8, 2019 by Phil B

[CSW652]

I still have this set sitting in a box somewhere waiting to get built.  I really like this version though, the best I have seen so far.   

Is this 9 volt, Power Functions, or Powered Up?  1st picture looks like it has 9 volt wheels on the front, but the rest look battery powered and I see the IR receiver peeking out on others.  

Edited November 8, 2019 by CSW652

[Man with a hat]

4 hours ago, Phil B said:

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Great Job. It looks really nice. I especially like the bogies. I would like to see a bit more of that in detail

One question. Is there a reason for the asymmetry at the bogies?

[cimddwc]

Well done! You made some nice improvements.

I removed my paper since then, replacing it with Lego's standard black 1-stud solution. Does your version support vertical movement, i.e. track inclines?

[Phil B]

3 hours ago, CSW652 said:

I still have this set sitting in a box somewhere waiting to get built.  I really like this version though, the best I have seen so far.   

Is this 9 volt, Power Functions, or Powered Up?  1st picture looks like it has 9 volt wheels on the front, but the rest look battery powered and I see the IR receiver peeking out on others.  

The power solution hasn't been changed from the original set 7938 - it is Power Functions driven. The first picture (which is a Stud.io render) uses a 9V motor part as Stud.io does not have a PF motor in its parts list :)

2 hours ago, Man with a hat said:

Great Job. It looks really nice. I especially like the bogies. I would like to see a bit more of that in detail

One question. Is there a reason for the asymmetry at the bogies?

The picture you looked at was a pre-build render. In the final build there is no asymmetry. See this pic:

And here is the additional bogie detail you requested:

2 hours ago, cimddwc said:

Well done! You made some nice improvements.

I removed my paper since then, replacing it with Lego's standard black 1-stud solution. Does your version support vertical movement, i.e. track inclines?

Wow, thanks for your response! I really liked your version with the moving doors, a feature I unfortunately had to drop due to my design choice of keeping the white 6w train base. I haven't tried it on inclines, but the carriages are not fixed to the bogie - they rest on top of the central cylinder, with the vertical axle (see the pic above) holding them in place. This should give enough freedom of movement to handle some inclines (untested though).

Edited November 8, 2019 by Phil B

[Man with a hat]

@Phil B Thanks for your answer. A deceptively simple solution, as all great designs usually are.