Building smoke?

Having a problem making your model railway layout look real. Post questions and share the results of your model railway scenery here.
User avatar
carnehan
Posts: 1319
Joined: Mon Jan 07, 2013 9:44 pm

Re: Building smoke?

Post by carnehan »

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

Paul
User avatar
TimberSurf
Posts: 2536
Joined: Wed Jan 08, 2014 5:47 pm
Location: N.Wales
Contact:

Re: Building smoke?

Post by TimberSurf »

I have said my piece, as far as I am concerned, sorted.
Lumsdonia YouTube Building smoke
Image
Lumsdonia <--- Hit link to go to my website for full story and wiring advice!
User avatar
End2end
Posts: 6010
Joined: Sun Jan 12, 2014 9:58 pm
Location: At the end....... and sometimes at the other end

Re: Building smoke?

Post by End2end »

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
Planning
Building
St. Blazey's Works & Depot thread
User avatar
TimberSurf
Posts: 2536
Joined: Wed Jan 08, 2014 5:47 pm
Location: N.Wales
Contact:

Re: Building smoke?

Post by TimberSurf »

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!
Image
Lumsdonia <--- Hit link to go to my website for full story and wiring advice!
Jaz
Posts: 271
Joined: Tue Oct 20, 2015 2:03 pm

Re: Building smoke?

Post by Jaz »

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
IMG_8788.jpg
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
Posts: 175
Joined: Fri Jun 30, 2017 1:56 pm

Re: Building smoke?

Post by Byegad »

Hamster bedding, most of which is grey cotton wool, makes a good representation of smoke. Use rather less than you might first think.
User avatar
BrightonMan
Posts: 326
Joined: Tue Jan 30, 2018 5:18 pm
Location: Eastbourne

Re: Building smoke?

Post by BrightonMan »

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
Posts: 628
Joined: Sun Aug 12, 2018 5:18 pm

Re: Building smoke?

Post by Buelligan »

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
User avatar
End2end
Posts: 6010
Joined: Sun Jan 12, 2014 9:58 pm
Location: At the end....... and sometimes at the other end

Re: Building smoke?

Post by End2end »

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
User avatar
End2end
Posts: 6010
Joined: Sun Jan 12, 2014 9:58 pm
Location: At the end....... and sometimes at the other end

Re: Building smoke?

Post by End2end »

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
Posts: 628
Joined: Sun Aug 12, 2018 5:18 pm

Re: Building smoke?

Post by Buelligan »

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
Posts: 52
Joined: Thu Jan 14, 2010 7:15 pm

Re: Building smoke?

Post by grs »

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

https://youtu.be/AsjkLVibwMY
Post Reply