SD60F

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NinARM1
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Joined: Tue Feb 13, 2018 9:48 pm

SD60F

Post by NinARM1 » Wed Feb 14, 2018 5:42 pm

Does anyone know where I can find a detailed blueprint of the GMD SD60F, in particular the HT-C trucks used on the locomotive? Thinking of building one and the trucks seem like a good place to start.

rkcarguy
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Joined: Tue Aug 22, 2017 10:33 am

Re: SD60F

Post by rkcarguy » Wed Feb 14, 2018 7:23 pm

I find a lot of drawings online, but they just don't have any dimensions to them. Seems like if you could scan them and somehow scale something a known size, you could add dimensions to everything as needed.

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steamin10
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Location: NW Indiana. Close to Lake Michigan S. tip

Re: SD60F

Post by steamin10 » Thu Feb 15, 2018 1:51 am

I just read a blurb about the promentory locos 119 and such being scaled from pictures by using the known size of the wheels. Aince no blueprints have survived save for the boiler of one, it was the only way to draw any prints with any accuracy. One engineer sat with dial calipers and used benchmarks in the photos to get the layout and sizes of both engines, since they originated from diferent builders. Now is the wheel size 40 inch or 36? 36 would be easy.
Big Dave, former Millwright, Electrician, Environmental conditioning, and back yard Fixxit guy. Now retired, persuing boats, trains, and broken relics.
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Erskine Tramway
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Re: SD60F

Post by Erskine Tramway » Thu Feb 15, 2018 10:49 am

I use a program called ScalePrint http://raildriver.com/products/cycloped ... .print.php

All you need is one known dimension, and you can print a photo or drawing out at any scale you want.
I've been using it to make my drawings of Sir Arthur Heywood's 15" gauge equipment.

Mike
Former Locomotive Engineer and Designer, Sandley Light Railway Equipment Works, Inc. and Riverside & Great Northern Railway 1962-77
BN RR Locomotive Engineer 1977-2014, Retired

rkcarguy
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Re: SD60F

Post by rkcarguy » Thu Feb 15, 2018 11:53 am

That's what I've had to do for some things on my S12. I've been working from an HO model and then getting check dimensions from drawings. Usually you can work from a known wheel size or CL-to-CL of the axles which can usually be found online.
I figured out the multiplier, and whenever I need to work from the HO scale model I take a measurement and then x 14.7 gives me my size in my scale(2").

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