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Thread: SD70ACS What's the best approach?

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    Default SD70ACS What's the best approach?

    Hi guys,
    For a long while I've oooed and ahhhed at the SD70ACS, pretty much an SD70 with sand filters slapped on. I've wanted to add one or two of these units to my roster for the longest time but it's never gotten off the ground. I've explored several options, from getting resin shells made to shapeways but I've come up empty handed. Ultimately the project is going to get farmed out to a custom builder so the thought of sending someone a standard ACE with "MAKE GOOD FOR SAND" written on it is also on the table (speaking of which if any of the pros on here are interested let me know). So NSN, have any thoughts on the matter?

    Couple of images grabbed off railpics:
    Did someone say whitcomb?

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    I quite don't get, why you would need an entire body to be produced.

    It is quite evident that EMD or their contractor just added metal boxes onto the existing design. It's not like they even tried to make them pretty. Square brass tubing could easily replicate the baffle housings. The baffles most likely could be represented by pieces of etched grill from an HO upgrade kit. You might look at parts made for making 1950-60 hot rods. They did all kinds of weird things for grills, even using chrome drawer pulls. The extra lights might be shaved from other bodies or use aftermarket pieces. Worse scenario, use thin slices of metal round tube. With CrystalClear dabbed in for lenses. You could go wacky and put fiber optic in the tubes and have a light show.

    The toughest part, is redoing all the warning labels in Arabic. Sure you can find the fonts. But getting the text right might prove to be very difficult.

    When I do my CSL variants of streetcars. I don't break out the computer. I look at the Bachmann bodies and figure out how I have to rearrange the various body parts and what sort of details need to be added. It could be as simple as using track nails as heater vents or as complex as glueing a piece of Evergreen quarter round to some square stock and cutting it to length, to make roof vents.

    The the key to any kitbash is not to look at the whole thing. Pay most of your attention to the differences. Then find the simplest shape that makes that difference and build onto it. Remember, you are working at 1/160 the size of the real thing. Many details disappear at that scale. It is the biggest parts that people recognize. The mind fills in the details.
    Use what you know about the world to model…
    Learn from modeling what you don't know about the real world.



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    Honestly, that SD70ACS would be a pretty easy build. The extra filters could be done in styrene. Shortening the fuel tank would require carving the frame down a little. The graphics could be made pretty easily too. The toughest part may be replicating the pilots and the light clusters. It would look nice to use the Trainworx etched grills in the rear. It would be a fun build.
    Karl

    CEO of the Skally Line, an Eastern MN Shortline

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    Another thought I had were shapeways conversion kits, as it was stated the shell is more or less the same so only the needed parts would need to be made
    Did someone say whitcomb?

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    So, are those two large boxes sand filters? I kind of like the look of this locomotive.

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    Quote Originally Posted by CHUCKGEO View Post
    So, are those two large boxes sand filters? I kind of like the look of this locomotive.
    Yes they are,these locos pretty much exclusively operate in the desert
    Did someone say whitcomb?

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    Update, sorta kinda.

    So I decided to NOT dive right into making a locomotive shell print from scratch. Instead I'm doing an SDL40-2 which is much much closer to a stock SD40, close enough to make a conversion kit for a Kato Mid SD40.
    https://www.railpictures.net/viewpho...570590&nseq=12

    Here's what we've got so far, there's still parts to make but we're getting close.


    Like my missile train this kit will eventually be available for public sale.
    Did someone say whitcomb?

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    Quote Originally Posted by Intermodalman View Post
    Hi guys,
    For a long while I've oooed and ahhhed at the SD70ACS, pretty much an SD70 with sand filters slapped on.
    Couple of images grabbed off railpics:http://www.railpictures.net/images/d...1350965408.jpg
    http://www.railpictures.net/images/d...1351972565.jpg

    Wow, give it enough time to evolve and these locos will sprout wings.

    Metro Red Ln (Metro Red Line)
    Under the streets of Los Angeles

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    I'm considering starting a new thread but considering it'll only have one or two posts I'll just keep the updates here.


    Conversion kit is ready:
    Did someone say whitcomb?

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