Author Topic: 3D printed Coffin feedwater heater for N Bachmann Berkshire T-1 (B&M, ATSF, SP)  (Read 604 times)

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Dirk Jan Blikkendaal

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ATSF N Scale Models has designed/made a 3D printed COFFIN feedwater heater for the N scale Bachmann Berkshire. This print - plus a modified Keystone Details Lima Berk trailing truck, ATSF N Scale Models tender trucks and some additional brass/styrene/steel rod/wire - converts the Bachmann model into a T-1 of the Boston & Maine, which had 25 engines in total. In the summer of 1945 10 engines were sold to the Southern Pacific and 7 to the AT&SF.
The 3D print is made by Shapeways, in Fine Detail Plastic, SMOOTHEST. Unfortunately not available from my Shapeways shop because Shapeways will only print in the PRINT IT ANYWAY mode, available only to the designer. It prints fine this way but at my risk. Some parts of the design are just below recommended printing specs and adjusting the print would make these parts oversized.

All info (building instructions and pictures) regarding the conversiom can be found on WWW.ATSFNSCALEMODELS.COM. Go to ENGINES/CARS and click the last item. See also PICTURES.

Happy N scale modeling, Dirk Blikkendaal
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« Last Edit: February 18, 2021, 07:15:22 AM by Dirk Jan Blikkendaal »
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Sharky_McSharknose

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HAWT! I have a Life-Like Berk I was going to turn into a B&M T-1 but I may just have to sell it and get a B-mann version instead.

Lemosteam

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@Dirk Jan Blikkendaal ,

What mods did you need to make on the trailing truck? If it’s simple enough, I can make a unique model for the Bachmann.

Did you use the aux engine?

peteski

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I wonder if this would fit the Life-Like Berkshire?  I don't care for the Bachmann's rather crude and toysh running gear.  Life-Like one is much better looking (and I can deal with poor pulling ability).
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Cajonpassfan

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Damn, Dirk, these are awesome! Great work!
Years ago (decades actually) I kitbashed the one B&M loco the Santa Fe rebuilt (4197?) with an Elesco FWH using an MRC(!) berk shell on an Atlas Mike chassis...long ago since sold. Your work continues to amaze and inspire me...
Otto

kiwi_al

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Awesome! I'll have to order some. Since you are reading my mind can you make all the other ATSF things I've been thinking of?  :D :D :o

Dirk Jan Blikkendaal

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Let me guess whats on your wish list / mind ......

Blue Goose 3460 skirted and deskirted  .....
M-160 doodle bug (orginal, re-engined and present)  ....
Amos and Andy / rebuilt bulldog nose 1 A + B / 2611 ......

 :D :D :D :D :D

John,

Thanks for the offer on the truck design. Unfortunately I had to strip your nice LL Berk truck quite a bit...... the forward pivot point/hole does not match the Bachmann and the back/end part gets in the ways of the Bachmann drawbar pin. What remains are the truck sides and the cross bearer (flat on top and bottom). Viewed from the side thats fine for me.  You can read/see all adjustments on my website but I will send you a PM with some detailed info (later). [ Guests cannot view attachments ] [ Guests cannot view attachments ]

Peteski,

Unfortunately I cannot check the LL Berk (do not have one)..... OD of the Coffin feedwater heater / boiler front is 14,2 mm ...... but not sure whether the attached pipes will clear the LL front steps or attach to the cylinders and running board...... for me operational usefulness is quite important...... so I prefer the metal engine shell of the Bachmann (much better pulling power)..... a little tweaking of the sound decoder running CV's produces a very good running model...... as per SPOOKSHOW reviews.


Otto,   

Those were the good old days....... those Rowa/MRC engines were quite nice (but needed a new Sagami motor)...... I also made a 4197 using the same Bachmann Berkshire a few years ago.... see picture.
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SANTA FE ALL THE WAY
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Cajonpassfan

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Nice! I sold mine once I realized it had no place on my Cajon layout (and the old Atlas RR mech left a lot to be desired). Yours looks much better!
Otto

superchief

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great job Dirk!!! Gordon

thomasjmdavis

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Beautiful locomotive. 

Great to see some ATSF steam

Let me guess whats on your wish list / mind ......

Blue Goose 3460 skirted and deskirted  .....
M-160 doodle bug (orginal, re-engined and present)  ....
Amos and Andy / rebuilt bulldog nose 1 A + B / 2611 ......

Amos and Andy with rebuilt noses....- now there are a couple ugly locomotives.  Would be hard to pass those up if the conversion isn't too hard. (Would they fit an E8 chassis?  Maybe an E8B?)
Tom D.

ncbqguy

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1A and 1B would be good along with EMC 511 and 512 (1C) (EMC Demo and CB&Q and AT&SF) units and the B&O/Alton/GM&O versions as long as the CAD changes would be slight in the scheme of things.  The trucks on the bulldog Amos n Andy would be a big problem because of the B+ lead unequal axle spacing unlike any mech in any scale.   The standard EMC would be easier....a long time ago I figured out the Kato EF65 without the center truck using Con-Cor U50 wireframes would work...probably something more current can be used.
Charlie Vlk