Author Topic: Etching question - N&W RS11 "louver boxes"  (Read 2690 times)

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Mark5

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Etching question - N&W RS11 "louver boxes"
« on: February 17, 2011, 09:28:38 AM »
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Do you think etched metal would be a good option for modeling the "louver boxes" that N&W added to most of it's DL-701 fleet?

http://gelwood.railfan.net/nw/nw348.jpg

Mark





wcfn100

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #1 on: February 17, 2011, 10:41:26 AM »
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Probably a good option.  GMM has some on their GP fret that cold maybe be used.  There will be some limitations.

You can make louvers by hand.  I can repost the setup I used for my NW-2 louvers if you are interested. It's not hard, it just takes some patience and a micrometer.


Jason

Rasputen

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #2 on: February 17, 2011, 10:52:46 AM »
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Archer louver decals are another option.

delamaize

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #3 on: February 18, 2011, 06:53:27 AM »
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Probably a good option.  GMM has some on their GP fret that cold maybe be used.  There will be some limitations.

You can make louvers by hand.  I can repost the setup I used for my NW-2 louvers if you are interested. It's not hard, it just takes some patience and a micrometer.


Jason

I have a project that could use some louvers, I'd love to see your setup if you could.

Mike

Northern Pacific, Tacoma Division, 4th subdivision "The Prarie Line" (still in planning stages)

Mark5

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #4 on: February 18, 2011, 10:28:59 AM »
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I too would be interested to see Jason's method, I've got three RS11's that could use the louver boxes.


wcfn100

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #5 on: February 18, 2011, 12:07:39 PM »
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I'll try and get it posted by Sunday.

Jason

wcfn100

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #6 on: February 20, 2011, 01:34:10 AM »
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Okay, so I pulled my old post and uploaded the picutes again.

Quote from: Me from a couple years ago
Here are the tools and a sheet of .005" styrene.



Using the micrometer I set the triangles postions within the square.  The first measurement is arbitrary, I started at .9".



Then I scribed the grooves using three medium passes.  It take a little practice to get the feel. I try and keep the blade edge at a 45 which makes the backside of the utility blade 90 to the styrene and flush against the triangle.  You can use different angles if you find one the works well and doesn't leave a bunch of styrene residue.  Just be consistant with that angle or the louvers won't be all the same size.



From there, it's a matter of resetting the triangle with the micrometer.  In my case I used .0145" as my increment, but would make it smaller if I had to do it again since the louvers ended up being a bit on the large (tall) side.  I just hope there is enough of a 'letterboard gap' to fit the decal.

Carefully cut out the louver strip using the first scribe you made as the base - meaning make sure it's a nice stright cut. The individual louvers are cut using 'the chopper'.

If nothing else, maybe someone will come up with a better or easier way based on what I did.  And FWIW, positioning them isn't too difficult since you have a lot of parallel references on the doors.  I could have done a little better job had I used a slower setting adhesive.

Here was the result.



And with some paint.





Jason

Chris333

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #7 on: February 20, 2011, 03:22:39 AM »
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Hack!

 :P


delamaize

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #8 on: February 20, 2011, 09:48:53 AM »
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Clever, goign to have to give that one a try. thanks
Mike

Northern Pacific, Tacoma Division, 4th subdivision "The Prarie Line" (still in planning stages)

Mark5

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #9 on: February 20, 2011, 09:41:19 PM »
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Nice - thanks for posting. I guess I'd start with thicker sheet, and go from there.

The thought of doing 48 panels will enable me to put this off for a while. ;)

Mark


Mark5

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Re: Etching question - N&W RS11 "louver boxes"
« Reply #10 on: March 01, 2011, 09:32:42 AM »
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The Gold Medal GP18 detail set has a bunch of louvers that might work for the smaller boxes. This would leave just the pair of larger louver boxes per loco. Gotta take another look at the set when I'm at the store.