Curved Surfaces


S

slopes09

Member
I need to find a way to make parts that fit on the C30-7. I need to find a way to get the Details Associates Prime Air Conditioner to fit on the roof, then model the large Sinclair antenna stand (essentially a big box), and finally the Locotrol unit just behind the cab on this locomotive:
pictures%5C13029%5CAPaper_test_0006_edited.jpg


pictures%5C31685%5Csf8141.jpg


My question is:
How?

Thanks,
-Mike
 
jbaakko said:
Details west has a Prime air conditioner part, that comes with the plate top put under it to match the roof, and create the flat base...
http://walthers.com/exec/productinfo/235-159

As for antenna's, try Plano ( http://planomodelproducts.com/ ) Part #184, or #462 (diesel details) depending on location.

Never saw a Locotrol device like that (big box on the long hood, behind the cab, right?).
Click to expand...
Not all Primes are created equal:
http://www.walthers.com/exec/productinfo/229-2308
http://www.jalopnik.com/cars/assets/resources/2006/08/Optimus-Prime-Model.jpg
Unless you mean use the base of the prime, which may or may not work, but I'm up for trying it.

You are correct on the position of the Locotrol. Took a decent amount of research just to figure out what it was.

Just found this, much, much better view of the top:
http://members.aol.com/JFuhrtrain01/BNSF5176.htm

I have some of the small antenna stand from a previous project, but I didn't know they made the beacon stand. Thanks!

However, for the large stand, it appears to be a large box with the curved base. It would be a simple styrene build, except for that curved surface.
 
I myself prefer to use the Details West AC units, as they're multi-part, and have better relief on the grills. The two companies Prime units are different models, I see that now. However, the base is a nice part, though it has a raised box on it to fit in the the notch of the bottom of the AC, that may have to be trimmed, or removed to use the DA unit.

However, if you look close, the AC unit sat on rails, not a full box, might be better to cut out the top of the roof, and build a platform from styrene angle strips.

Seeing it from that angle shows that the large Sinclair is mounted on a fairly large box, as you said.
 
My other thought, since I'd rather not cut the cab up, is to model the curvature using some putty, then lift it up, then trace it onto the styrene.
Alternatively, I could track down C30-7 diagram and trace the curvature there.
 
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