Crestline (Walthers) Kit...

You can probably make an mold of the opposite end of the cupola and cast a replacement.

In fact, you might consider making molds of all of the cupola parts, etc. - never know when you might be needing them in the future.

Just in case there's any interest, here are a few more snaps:

There are no markings of any kind on the truck(s); the wheel sets are not insulated, so I guess this was set up for outside 3 rail(?)

Mark in Oregon

@Strummer posted:

There are no markings of any kind on the truck(s); the wheel sets are not insulated, so I guess this was set up for outside 3 rail(?)

That would a good conclusion; getting them apart to put insulated wheelsets in looks challenging...

Yeah...as far as your suggestion regarding the cupola parts; good idea, although I've never done any casting...

Mark in Oregon

@Strummer posted:

Yeah...as far as your suggestion regarding the cupola parts; good idea, although I've never done any casting...

Mark in Oregon

as sugested you can make a rubber mold, personally I would cast  it in a 2 part resin or epoxy

@Strummer posted:

Yeah...as far as your suggestion regarding the cupola parts; good idea, although I've never done any casting...

Mark in Oregon

EZ-PZ -- get a basic starter kit box from Alumilite; more than you need and good for the rest of the parts.

I'm with Marty. I routinely cast parts. Depending on the piece you can use modeling clay or plaster for your mold.

Aluminite, Smooth-On and others make two-part resin kits. You'll also need mold release to get the original or casting out of the mold.

They also have two-part RTV mold making kits. A word of caution. Once opened, the RTV liquids have a limited shelf life.

Say, since some of you have obviously done this before, perhaps you might be willing...  then you could make as many copies as you want; I only need one!

Mark (still) in Oregon

@Strummer posted:

Say, since some of you have obviously done this before, perhaps you might be willing...  then you could make as many copies as you want; I only need one!

Mark (still) in Oregon

Hmmmm..................

@mwb posted:

Hmmmm..................

Does that mean you're considering it!?! 😄😄😄

Mark in Oregon

@Strummer posted:

Does that mean you're considering it!?! 😄😄😄

Mark in Oregon

Debating the cost of opening up a kilo of RTV and then opening 2 lbs of resin.  Got to have enough stuff to make molds of to justify that action. Once I start pouring resin, most of the other projects in my shop come to a stop.

As a post script to this thread: I was able to get a complete set of cupola castings through Trainz, so I'm good to go. 🙂👍

Mark in Oregon

Wow!  So nice to read of a successful conclusion to the original post/problem. 

Thanks for 'closing the loop'...and divulging how you were able to do so.  Gives us hoi polloi in the hobby hope for successful outcome.

(Too many threads of appeal die open-ended.)

KD

Those trucks look like Max Grey or US Hobbies from the photo.    Probably Max Grey. 

If they are MG they can be easily disassembled.    remove the 2 screws shown in the photos.     Remove the springs from one siide  which are probably held by the screws.    Slide the plank out of the lower part of the side frames on same side.     Slide that sideframe down to where the plank was, and it should slide off.

@prrjim posted:

Those trucks look like Max Grey or US Hobbies from the photo.    Probably Max Grey.

If they are MG they can be easily disassembled.    remove the 2 screws shown in the photos.     Remove the springs from one siide  which are probably held by the screws.    Slide the plank out of the lower part of the side frames on same side.     Slide that sideframe down to where the plank was, and it should slide off.

I will look into that; thanks. Hopefully Intermountain wheel sets will fit... 🤞

Mark in Oregon

If they are MG they can be easily disassembled.    remove the 2 screws shown in the photos.     Remove the springs from one siide  which are probably held by the screws.    Slide the plank out of the lower part of the side frames on same side.     Slide that sideframe down to where the plank was, and it should slide off.

Except that they also look to be soldered together in the one photo.

@mwb posted:

Except that they also look to be soldered together in the one photo.

...and they don't look to be "screws", but rather "pins"...

Ain't no thing; I can always run this with my 3 rail scale stuff. (One of the advantages of using Gargraves track for both 2 and 3 rail... )

Mark in Oregon