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Old Modeling Tools & Methods
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 Posted: Wed Aug 6th, 2014 01:57 pm
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Tony M
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Hi I am looking at modelling Amtrak's auto carriers, how do I tackle bending corrugation aluminium sheets like in the pic of the roof



Tony

Last edited on Fri Feb 20th, 2015 09:46 am by Tony M

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 Posted: Wed Aug 6th, 2014 02:11 pm
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pipopak
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I think trying to bend regular aluminium corrugated material will cause wrinkles. So I would try this:
engrave a piece of thin balsa wood in the cross-grain way and then steam-bend it over a mold wide enough that the outside dimension of the balsa matches the width of the car in your scale. If I can figure something else I'll post here. In the meantime have fun!. Jose.



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 Posted: Thu Aug 7th, 2014 11:11 am
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Bernd
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If you have many to do I would go with making resin castings. You then only need to put the effort of details into master.

Bernd

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 Posted: Fri Aug 8th, 2014 12:07 am
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Tony M
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Thanks, Jose and Bernd for the advice, I like the idea of moulding the roof. Have a friend that is moulding his own rocks and another friend that has mouldered his own Boeing 737 fuselage.

Here is a pic of yet another project I have in mind of modelling the famous Indian Pacific in Australia. Lima only have put out thee of the Indian pacific cars, the baggage break van no have to modify another car.

The decal on the car is Great Southern Railway, it is called a HM class van, here is a link to look at the IP consist.

http://www.comrails.com/an_carriages/ans020.html



Here is a pic.



Tony

Last edited on Fri Feb 20th, 2015 09:49 am by Tony M

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 Posted: Sun Aug 10th, 2014 03:40 am
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chasv
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not thinking and working  i could have gotten a truck load of corrigated alunimum from teephone cable for free back when i was a splicer did grab a short piece of cable and use $.99 store cookie sheets and emboss them on the inside of the sheath



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 Posted: Sun Aug 10th, 2014 12:43 pm
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Mr Stumpy
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If I recall correctly, there was an article in Model Railroader magazine in the fifties about using aluminum foil for streamlined passenger car roofs. To get the corrugations, you would draw a fine tooth comb along the foil to emboss them.

Stumpy in Ahia:old dude:

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 Posted: Sun Aug 10th, 2014 01:26 pm
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pipopak
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Ridges on the auto carrier seem to be squariish, not rounded like regular corrugated material. Jose.

Last edited on Sun Aug 10th, 2014 01:28 pm by pipopak



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 Posted: Mon Aug 11th, 2014 11:27 am
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Tony M
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Hi Mr Stumpy, yeah there is a tool you can buy to make the
corrugated sheeting in HO scale my club has, will take a pic of it tomorrow at the train club.

Pretty sure some one did a post on how to scribe light aluminium sheeting into corrugated sheeting.

Yes Jose some do have the squarish roofs, there are the newer type coming that are more rounded like the Amtrak auto carrier in a pic on the 31st post



Tony

Last edited on Fri Feb 20th, 2015 09:51 am by Tony M

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 Posted: Tue Aug 12th, 2014 08:41 pm
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scsshaggy
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There's an old E.L. Moore trick: Make corrugated roofing out of bond paper by placing it over plastic or scribed wood simulated corrugated roofing and tracing the grooves with a dry ballpoint pen. Rather than shopping for bond paper, I save heavy paper from junk mail. I use aluminum paint (a store brand clone of Rustoleum) to paint it. It covers very completely, even when there's printing on the paper. The bond paper, being paper is easily glued and doesn't kink as easily as corrugated foil.

Another use of paper is to scribe grooves into manila file folder paper using the dull side of a knife point and a ruler. I use this to simulate plank vertical siding for things like coal sheds, feed mills, etc.

Attachment: 001.JPG (Downloaded 33 times)



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 Posted: Tue Aug 12th, 2014 11:22 pm
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pipopak
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About paper, you have to remember that it has "grain" like wood. Take a sheet of paper and bend it one way, then the other ( i.e. take a standard 8.5 X 11. Bend the long way first, then perpendicular). The one that flexes easier is parallel to the grain. Jose.



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