ATSF 70' baggage using the new MT 'Erie' car

[arbomambo]

Hello all....
I've been anticipating the recent release of the new Micro Trains heavyweight head end cars, specifically the 70' baggage, based on an Erie prototype. I had hoped that it would make an excellent core for building many heavyweight cars, using various brass sides; specifically Santa Fe cars and M&R brass (?) sides.
Donor cores had previously been limited to the classic Rivarossi/Atlas/Con Cor heavyweight cars. Accurate cars can be built from these still, but with quite a bit of work to truly make them accurate in layout and all dimensions.
 The Micro Trains heavyweights, on the other hand, allow an accurate model to be built, with much less work...i.e. cutting, scratchbuilding, etc. The Micro Trains heavyweights feature separate ladders, underframes, and glass. they also feature body mounted couplers. This new Erie baggage car also features a brand new heavyweight truck type (very useful for some builds-I'll be using the previous 'commonwealth' heavyweight truck for most of mine...)
 The new Erie baggage doesn't disappoint in this regard. After acquiring a couple upon release, I've found my highest hopes for using them as cores have been fully realized.
I'm starting to build the first new ATSF 70' baggage, using M&R sides' sides and the new MT car. I'll take plenty of pics at each stage in the process, in case anyone else is planning to do the same.
Thanks for looking,
~Bruce


 Here I've posed two cars to compare features of the standard Micro Trains Erie baggage car (on the left), and a ATSF 70' baggage car previously built on a cut down Rivarossi 'combine' using the M&R brass sides. One can see the differences in door width and spacing between the two cars. This comparison pic also highlights a benefit to be gained by using the Micro Trains car as the donor car/core- the Micro Trains car has the more accurate truck spacing, whereas the Rivarossi car's truck spacing is more inboard. Using the brass sides on the Micro Trains car will yield a more accurate car with much less work.




another benefit to using the MT car is the ease with which ALM diaphragms can be added w/o significant alteration of the door area-in fact the MT doors do not need to be removed from the car to allow fit and free operation of the ALM diaphragms. Here, the MT diapphragm has been removed to reveal the 'lip' and recess around the end door. the ALM part will fit right onto this lip, after removing the molded-in features above the door.




and here, after removing the area, an assembled ALM diaphragm is simply glued into place, allowing the nicely molded door to remain.

[Cajonpassfan]

Thanks Bruce, this is great!
I'll be following this closely, and let you figure out the pitfalls before starting on mine
Best, Otto K.

[thomasjmdavis]

Bruce, many thanks for your producing an "instruction manual."

I will also be watching with close attention, as I have 2 "cores" (which I bought with ATSF lettering, only seemed appropriate) ready to go, along with several sets of M&R sides I haven't started on yet.  Will be especially interested to see how you do the sill.

The MT baggage really offers a great starting point, hopefully we can persuade Roberto and other side manufacturers to bring out more sides that fit. 

Given my own schedule, it will probably be next week before I get started.

[SandyEggoJake]

Nice work.  And I'm looking to get a few of the MTL cars as well as to you as you did to a bunch of old Atlas cars I snagged super cheap.  I particularly like how with your Rivarossi you were faithful to the asymmetric doors and the roof grab handles on the Santa Fe.  Looks just like the pic and diagram in my Santa Fe 1948 Cars & Locomotive Plans book. 

If I may, I've been looking for sources for pas car vents and other details, so any tips you might share would be appreciated.  For example, did you scratch build your 4 window door (I assume the other window you just used what was stock, yes?) 

(Now you need a horse car!)

[Cajonpassfan]

Oh, but he has a horse car

[arbomambo]

here is the link to the first build of an ATSF 70' baggage using the Rivarossi car as a core:

https://www.therailwire.net/forum/index.php?topic=25705.msg260038#msg260038

[skytop35]

Sweet cars Bruce. Nice work !

[arbomambo]

Precious little time to model ...Summer is here, with mini vacations, cook outs, out of town guests, and beach time!...
but I did start the next phase of this build ( the first, and test case, of using the beautiful MT car as a core)....

a step that I want to do in order to convert these to Santa Fe cars (with the iconic channel sill), is to remove the lip around the bottom edge of the Micro Trains car...this lip, shown above, hides the underframe piece on the regular baggage cars. The new brass sides, and the channel sill, will hide the underframe nicely on the new cars, and removing this 'sill' will allow me to position the Santa Fe channel sill w/o any interference.



it's a simple procedure to remove the sill with a heavy duty Xacto blade.



here are a 'before' and 'after'....



I was very careful to leave the lip at the very end of the carbody....





I'd like to use the Micro Trains end steps (even though the brass sides' fret includes some beautiful photo-etched versions)...the MT steps are molded of Delrin and are less likely to break if there is an 'accident'. however, I'm concerned that the MT part may not be long enough with the Santa Fe channel sill in place...I'm test fitting it in this series of pics.



here, the underframe is snapped into place (the underframe captures the end ladders/steps and secures them)...it's apparent that, by removing the lip around the bottom of the carbody, the underframe would be exposed if I weren't covering it with the brass side and channel sill....





Here, I've posed the the brass side in place, in order to see if I'll be able to use the MT steps....they would seem to work, IF I weren't going to add the channel sill!....but, I can see here that the steps will be too shallow (not protruding down far enough) after the channel sill is in place....again, no worries, these steps are included in Roberto's fret so I won't have to outsource them






after completing this step, this build will really go quickly...emphasizing how much easier it is to use these new, beautiful Micro Trains cars as core kits.
the next step will be to mark and cut the new, Santa Fe door openings into the MT car sides, then sand the sides flat to accept the new M&R Sides ones...
Thanks for looking,
~Bruce

[Upstate Gator]

My six undecs should arrive this week to be used for an assortment of M&R sides. I'll be watching your build!
Ben

[arbomambo]

progress, albeit slow (no time to model!)

it's at this point that I move the coupler attachment points to the rear, in order to get the close coupled spacing I want...the diaphragms are in place and after moving the coupler mounting holes about 1/4" further inboard, the spacing looks right and the cars track without problems...



the cars look 'funny' at this point ( the bottom sill has been removed so they look as if they're 'high-riders'!), but I want to get this spacing done before I add the new sides and channel sill...



Here, I'm overlaying the brass side, and marking the new door positions and where I'm going to cut into the carbody-I don't have to precisely cut the new door openings; just cut enough clearance to accomodate the doors on the brass sides



The ATSF cars are different from the MT Erie car in a number of ways, but the door size and spacing are the obvious differences- the Santa Fe doors are mounted more toward the ends of the car, and the doors are mirrored (the smaller and larher doors are opposite of their counterparts on the other side)



The MT Erie prototype car has sides are copies of each other (the smaller door is to the right, the larger door to the left, on each side)




thanks for looking,
~Bruce

[Cajonpassfan]

Hi Bruce, nice to see you and this project back!
One thing I'm wondering about is the side door elevations/ride height. The MT Erie doors seem lower down the sides, while Roberto's have a bit more of side below the doors, corresponding to the ATSF prototype. Presumably, the floor decking of both cars should be at a standard height? (4'?) Is there something off somewhere? Is the overall height of the car accurate? (Should be 14' or just slightly over).
Hope you can find more time for modeling, although is sounds like you're having some summer fun anyway.
Regards, Otto

[arbomambo]

Otto, they're the same height from the floor...the last few pics show the MT car with quite a bit removed from the bottom ( I removed it to provide clearance for the new sides and corresponding channel sill.
I'll also build a fishbelly baggage in this series of pics-Roberto's sides for that car are the exact same length.
(i do wish I were going to Sacramento next week, but I'll definitely make to KC next year!
~Bruce

[arbomambo]

Otto,
also, the MT car has a very unprototypical 'inside' height floor because of the thickness of the material (that's why I have to notch the floor around the 'new' door openings)...but again, the pics showing the3 new coupler spacing are with the cars after the lower sill has been removed.
!Bruce

[Cajonpassfan]

Bruce, I'm sure they'll be awesome when they are done. Just following with interest
Here's a shot you may find useful.
Best, Otto

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[arbomambo]

Thanks for the pic, Otto!...I haven't seen this pic before...

the openings are cut for clearance for the doors on the new sides...I cut clearance in the floor at each door, so the sill wouldn't create a bulge at each door opening ( I've learned to do this from hard experience)



and the side is overlayed to test the clearance...looks good!



the openings are cut for clearance for the doors on the new sides...I cut clearance in the floor at each door, so the sill wouldn't create a bulge at each door opening ( I've learned to do this from hard experience)



and the side is overlayed to test the clearance...looks good!



As I stated previously, the fishbelly baggage car has the same spacing and dimensions, but the large and small doors are in reversed position from the 70' baggage car here; i'll mark and cut the door openings in the other MT car to allow for this...
Thanks for looking,
Bruce