Author Topic: Baldwin-Westinghouse Class B  (Read 4255 times)

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randgust

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Re: Baldwin-Westinghouse Class B
« Reply #45 on: April 19, 2025, 08:42:40 AM »
+3
This is the chassis I designed for the North Shore 456 project.   Cast resin, used Tomytec trucks (which are too wide at the base to fit yours, for sure) but this is what I mean about using the Kato drive with a gearhead motor that could achieve an offset.



link:  http://www.randgust.com/45615%20chassis%204.jpg

That was the battery powered one so I had a nose I designed a cast weight for.   The narrow nose straight electric was too narrow for the trucks.



Link:  http://www.randgust.com/45611%20finished%204.jpg

A blend of Chris' 11-105 and my gearhead drive would be primo.   If you don't use a gearhead you'll have a little rocket.

« Last Edit: April 19, 2025, 08:46:24 AM by randgust »

sd45elect2000

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Re: Baldwin-Westinghouse Class B
« Reply #46 on: April 19, 2025, 09:53:39 AM »
0
This is the chassis I designed for the North Shore 456 project.   Cast resin, used Tomytec trucks (which are too wide at the base to fit yours, for sure) but this is what I mean about using the Kato drive with a gearhead motor that could achieve an offset.

That was the battery powered one so I had a nose I designed a cast weight for.   The narrow nose straight electric was too narrow for the

A blend of Chris' 11-105 and my gearhead drive would be primo.   If you don't use a gearhead you'll have a little rocket.

The pair (455-456) still run great btw.

Randy




randgust

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Re: Baldwin-Westinghouse Class B
« Reply #47 on: April 19, 2025, 10:35:53 AM »
+1
So anyway I've designed resin chassis to work with these concepts, what shut me down was that the designer at Shapeways designed to size, not practicality, with the narrow nose width.  I've seen this before in several models that work backwards from a 'perfect scale' rendering and then try to jam a mechanism in in.  You need to figure out your mechanism before you design your body as just a rather minor dimensional tweak can make it feasible or make it impossible.  Expecially on sills, coupler pockets, interior clearances.

My all time winner was the Alco MRS1 shell, I got it to work, but almost shattered it getting it on a chassis.