Need some help identifying suitable material for scratch building

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Need some help identifying suitable material for scratch building

Joined: February 27th, 2005, 1:39 am

June 12th, 2018, 12:20 am #1

I’m currently building a 1/144 Soyuz TMA LUT from LVM Studios. Most of my kit is finished and ready for final assembly. I’m adding some “AMS” details because several hundred PE and resin parts aren’t enough.

In the photo below I’ve highlighted an area on one of the towers a flimsy section of duct. I’m having a difficult time identifying something suitable to replicate this. The ducting seems to have a diameter a little less than a swimsuit drawstring. I’ve tried stripping off insulation from wire with poor results. It’s just to thick and stiff. I need something that can minimally hold its shape and be easy to mold. I’ve considered rolling out some Miliput, but that’s my last resort.

As a side note, the rocket is from New Ware. I’m building my base to pose the LUT with the railcar that delivers the rocket out to the pad.

Thanks for looking.

Chris
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Joined: December 28th, 2016, 6:50 pm

June 12th, 2018, 12:33 am #2

No idea if this would work at all but wonder if you could wrap some foil around a tooth pick to form a tube?

(Looks great by the way! You have much more patience for PE than me!)
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Joined: December 18th, 2016, 8:46 pm

June 12th, 2018, 12:42 am #3

You could use sections from bendable straws formed around a piece of wire and painted, or go to the hardware store for springs of the proper size bent around a piece of wire and painted. 
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Joined: March 30th, 2015, 3:46 pm

June 12th, 2018, 1:42 am #4

In real life we have what appears to be a network of ducts, most (but not all) of which is covered by some kind of dirty aluminum-colored insulation or batting. I'd probably create an armature out of wire or tubing the scale diameter of the uncovered ducting. Then, depending on the actual size of the armature (which from photos here I can't estimate well), I'd consider covering the insulated/batted portions in crinkled foil or milliput or putty or perhaps even hot glue. Then paint to suit. Good luck, and by the way, your model looks plenty nice already. If you chose to omit this item I certainly wouldn't blame you. 
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Joined: July 27th, 2009, 4:13 pm

June 12th, 2018, 2:40 am #5

I would use lead wire. It comes in different diameters, bends easily and even has the right colour!
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Joined: November 17th, 2006, 1:18 pm

June 12th, 2018, 3:42 am #6

Yep, I too would go w/ solder. Easy to source, many sizes if you go to a good elec or hardware store. Go flux core-less,solid.

What is it? 36" or so dia flex ducting? To suck out fumes, smoke, etc? So prob made of coated fabric that's held to shape by a coil of spring steel? But I can't see the coil, so in 144th, prob invisible. Looks ruff/wrinkled tho. Coiled into a big sloppy pile and held in place on the floor by bungee cords or straps?

I'd bend, coil, a length of solder into that pile, paint alum and dry brush to grunge it up some. Maybe experiment w/ sprinkling talc or some fine metal powder on the still wet first coat to give it a ruff finish/texture, and when dry/set, another coat of alum/silver to seal. Airbrushing that 2nd coat would prob be better instead of brushing so as to not disturb the grainy coating. 
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Joined: March 4th, 2014, 6:27 pm

June 12th, 2018, 6:35 am #7

Claus Dam wrote: I would use lead wire. It comes in different diameters, bends easily and even has the right colour!
In the past I have had success with a steel coil created by winding .025 steel around a suitable size rod. Cover it with heat shrink tubing,heat and it will shrink down over the wire and look quite convincing. Jeff S.
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Joined: May 18th, 2005, 7:03 pm

June 12th, 2018, 12:48 pm #8

I can't answer your question, but that is an amazing build! Thanks for sharing with us. Please let us know what you come up with.
Don McIntyre
Clarksville, TN


"The more I deal with people, the more I like my dog."
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Joined: March 1st, 2005, 1:50 am

June 12th, 2018, 4:11 pm #9

Electric guitar string? Maybe bass string? They are actually tightly coiled wire.
Visit Roll Models at: www.RollModels.com
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Joined: October 15th, 2009, 5:22 am

June 12th, 2018, 6:22 pm #10

HiroBoy
Corrugated tubing.
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