Building smoke?

Having a problem making your model railway layout look real. Post questions and share the results of your model railway scenery here.
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carnehan
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Re: Building smoke?

Postby carnehan » Wed Jul 18, 2018 6:59 pm

End2end, that’s very interesting and something I must bear in mind when I reach the stage of populating the layout.

Paul

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TimberSurf
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Re: Building smoke?

Postby TimberSurf » Wed Jul 18, 2018 7:42 pm

I have said my piece, as far as I am concerned, sorted.
Lumsdonia YouTube Building smoke
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Lumsdonia <--- Hit link to go to my website for full story and wiring advice!

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End2end
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Re: Building smoke?

Postby End2end » Mon Jul 23, 2018 11:45 am

Complex. :shock: :lol:
Is there a way to slow down the flow of smoke through that Timbersurf?
Also on the houses it does come out in quite a fast straight stream. Is there a way to add something within the chimney to break the stream up?
Say a criss-cross grid made from a peice of food/tea strainer perhaps?
Thanks
End2end
"St Blazey's" - The progress and predicaments.
Welcome‎
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St. Blazey's Works & Depot thread

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TimberSurf
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Re: Building smoke?

Postby TimberSurf » Mon Jul 23, 2018 9:18 pm

Its not a question of slowing it down, the pump has a fixed output (only slightly varied by the supply voltage), thus if restricted by 4 very small holes, ends up as jets of high speed smoke! I fitted a leak (tee piece with a restriction on the side outlet) to the pump output (before it reaches the smoke generator pot), so I can reduce the flow of air to the generator. It results in more of a realistic dribble of smoke, but is finicky to set the balance of pressure.
Hard to "diffuse" a 1mm hole!
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Lumsdonia <--- Hit link to go to my website for full story and wiring advice!

Jaz
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Re: Building smoke?

Postby Jaz » Thu Jan 03, 2019 9:14 pm

a nicolette cigarette? for moving smoke or a similar flavoured one.

for still photographs you can have a go with just cotton wool, i joke thee not
6650 sorry not railway but
IMG_6650 (1).jpg


8788
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8784
IMG_8784.jpg


8661
IMG_8661 (1).jpg


8673 creepy graveyard
IMG_8673.jpg


LED partly a reasonable upgrade i just used paint

Byegad
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Re: Building smoke?

Postby Byegad » Fri Jan 04, 2019 3:02 pm

Hamster bedding, most of which is grey cotton wool, makes a good representation of smoke. Use rather less than you might first think.

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BrightonMan
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Re: Building smoke?

Postby BrightonMan » Fri Jan 04, 2019 3:17 pm

Bit off the wall but would it be possible to put incense cones in some sort of metal container at the bottom of the chimney? You would have to have access to remove the container of course. The smoke they give off is denser than smoke generators - just make sure you choose a smell you can tolerate!

Buelligan
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Re: Building smoke?

Postby Buelligan » Sun Feb 10, 2019 11:26 am

I've not read all the replies here, so apologies if this has already been suggested but...

The type of smoke units that seem most popular in the model boating world use water to make mist. The downside to these units, is the size, you'd need a large building to hide it, or put it under the baseboard.

Plus points:

-Neither uses nor produces any heat,
-No smell
-No oily residue left on buildings
-Only uses power and tap water
-Fan speed can be adjusted to increase or decrease smoke output

Rough instructions can be found on the website of the club I used to be in, and it can be built for approx. £20. Ready to go units can be had from £40 from various model boat sites, or on eBay.

http://www.wicksteedparkmbc.com/smoke-generator.html

And a video of this type of unit working: https://www.youtube.com/watch?v=G-hizJ8US14

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End2end
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Re: Building smoke?

Postby End2end » Sun Feb 10, 2019 3:11 pm

I wandered upon this the other day but haven't had time to look deeper into it yet.
https://www.ebay.co.uk/itm/HENG-LONG-SM ... 1438.l2649
Thanks
End2end
"St Blazey's" - The progress and predicaments.
Welcome‎
Planning
Building
St. Blazey's Works & Depot thread

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End2end
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Joined: Sun Jan 12, 2014 9:58 pm
Location: At the end....... and sometimes at the other end

Re: Building smoke?

Postby End2end » Sun Feb 10, 2019 5:12 pm

Buelligan wrote:The downside to these units, is the size, you'd need a large building to hide it, or put it under the baseboard.

I wonder if that outlet pipe could run under the length of the baseboard and be "t -piece'd" off to various buildings using smaller pipes/tubing thus only 1 reservoir needed. :idea:
Thanks
End2end
"St Blazey's" - The progress and predicaments.
Welcome‎
Planning
Building
St. Blazey's Works & Depot thread

Buelligan
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Re: Building smoke?

Postby Buelligan » Sun Feb 10, 2019 7:06 pm

Over too long a distance the vapour would just condense on the pipework I think, but up to a certain length it can work. I've seen copper t-pieces used so it can feed up to 4 funnels on a model of Titanic or something like that. The best bit really is how easily adjustable the fan is to vary the force of the 'smoke'.

i saw in your other post you were looking at the Hong Long smoker. I've had 3 Heng Long tanks and the smoke units have been awful in all of them. To the point that I've taken them out to avoid them accidentally being switched on and draining the power. If you still want to have a go with it, I'm sure I've still got at least 1 that I could send you to have a play with.

*Edited to add*

Something like in this video, except this particular video is an oil burning unit from Australia: https://www.youtube.com/watch?v=cAJVT3EhxSY

And this is the unit in the video above, no personal experience of this particular one, but I was going to get 1 a while back for a different project that I never completed: https://www.ebay.co.uk/itm/RC-Model-Smo ... :rk:3:pf:0

grs
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Joined: Thu Jan 14, 2010 7:15 pm

Re: Building smoke?

Postby grs » Mon Feb 11, 2019 8:28 am

I came across this video last week. this guy has loads for great scenery guides

https://youtu.be/AsjkLVibwMY


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