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einotuominen		#1 Posted : 17 February 2024 11:44:17(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		Hi, In order to fit smoke unit to some retrofit diesel locos, the standard tube shape will not fit, so I thought I’d make one myself. Here’s the schemantics: So it’s a coiled wire that is connected to the decoder. The coil is wrapped with a cotton swap that is soaked with smoke fluid. The whole thing is assmbled to a shallow pool that will fit to the US brand diesel locos. What material should the coil be and can I connect it between U+ and Aux1? What about Aux1 and ground instead? What about the cotton swap? Is it a bad idea or should the smoke fluid just be freely in the pool/container with the coil in it? Thanks! -Eino
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cintrans		#2 Posted : 17 February 2024 14:43:13(UTC) Retweet
Joined: 11/07/2018(UTC) Posts: 172 Location: Aruba (general), Oranjestad		Not a good idea Eino! The styrene and cotton will catch fire due to the heat of the coil.... Did you ever feel how hot a smoke generator gets in a steam lok? Regards Jean-Pierre
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river6109		#3 Posted : 17 February 2024 14:46:49(UTC) Retweet
Joined: 22/01/2009(UTC) Posts: 14,728 Location: On 1965 Märklin Boulevard just around from Roco Square		Originally Posted by: cintrans Not a good idea Eino! The styrene and cotton will catch fire due to the heat of the coil.... Did you ever feel how hot a smoke generator gets in a steam lok? Regards Jean-Pierre Isn't this the whole idea to get real smoke out of the generator
		https://www.youtube.com/river6109 https://www.youtube.com/6109river 5 years in Destruction mode 50 years in Repairing mode
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einotuominen		#4 Posted : 17 February 2024 15:10:07(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		Yeah But there’s a lot of videos online where people make these in plastic bottle caps… -Eino
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dickinsonj		#5 Posted : 18 February 2024 01:02:26(UTC) Retweet
Joined: 05/12/2008(UTC) Posts: 1,684 Location: Crozet, Virginia		There are a lot of videos online of people doing many things that I would not recommend, and this is one.
		Regards, Jim I have almost all Märklin and mostly HO, although I do have a small number of Z gauge trains! So many trains and so little time.
2 users liked this useful post by dickinsonj		xxup, BenP
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einotuominen		#6 Posted : 18 February 2024 08:13:28(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		So let’s forget about all the plastics and replace them with metal parts. What would the plan looklike then? -Eino
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Tie		#7 Posted : 19 February 2024 10:05:57(UTC) Retweet
Joined: 28/09/2019(UTC) Posts: 110 Location: Rogaland, Haugesund		Interesting idea… must admit it has occurred in my mind to… Still I think it might be too challenging. I think I remember having measured the resistance of a smoke generator to approx 45 Ohm. At 12 volt dc this would require 0,26 Amps. Then I do not know if resistance in coil measured when cold will change when heated. Normally I think these coils are made from nickelchrome wire as used in styrofoam cutters. But I have not found info of resistance pr m wire. 0.1 mm wire is possible to procure… Also other materials may be used that I do not know of. Still. Keep us in the loop if you go further with your idea. Regards Thor
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einotuominen		#8 Posted : 19 February 2024 10:29:29(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		Maybe the biggest question here is what should I do / not do in order to keep the decoder alive and not burn it in process. -Eino
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mbarreto		#9 Posted : 19 February 2024 12:47:45(UTC) Retweet
Joined: 18/02/2008(UTC) Posts: 1,265		Isn't it easier to use a normal Seuthe smoke generator and just do a metal adapter to the locomotive? You can use screws or glue to fit the adapter to the locomotive body. the screws will look worse, but I don't know if there is any glue that can support the high temperatures. Maybe others have a better idea to attach the adapter to the locomotive body.
		Best regards, Miguel Mostly Märklin H0.
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einotuominen		#10 Posted : 19 February 2024 12:52:13(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		Originally Posted by: mbarreto Isn't it easier to use a normal Seuthe smoke generator and just do a metal adapter to the locomotive? You can use screws or glue to fit the adapter to the locomotive body. the screws will look worse, but I don't know if there is any glue that can support the high temperatures. Maybe others have a better idea to attach the adapter to the locomotive body. This would be the case with older Märklin locos that are mostly empty inside, but the locos I have, got centrally mounted motors with dual flywheels and a big frame for weight. So there is maybe 8mm space between the hull and the plastic body of the loco. -Eino
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mbarreto		#11 Posted : 19 February 2024 18:16:49(UTC) Retweet
Joined: 18/02/2008(UTC) Posts: 1,265		Ok, I understand there is not much space inside. You can take a look (in case you didn't already) at the Seuthe several products (link to the page below) to check if some fit, although probably not if the space is really small: Seuthe H0 smoke units
		Best regards, Miguel Mostly Märklin H0.
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Tie		#12 Posted : 19 February 2024 18:23:01(UTC) Retweet
Joined: 28/09/2019(UTC) Posts: 110 Location: Rogaland, Haugesund		Whatever You do… I assume some testing prior to installation in loco would be required. Regards Thor
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einotuominen		#13 Posted : 19 February 2024 19:27:38(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		Originally Posted by: Tie Whatever You do… I assume some testing prior to installation in loco would be required. Regards Thor Absolutely!
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Tie		#14 Posted : 20 February 2024 11:45:44(UTC) Retweet
Joined: 28/09/2019(UTC) Posts: 110 Location: Rogaland, Haugesund		New idea: if the goal is smoke, not a homemade smoke generator… you cold drill a hole in the metal frame and mount a smoke generator vertially. (Type with cables to decoder. Then extend outlet with a silicontube to top of loco. Regards Thor
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einotuominen		#15 Posted : 20 February 2024 12:00:58(UTC) Retweet
Joined: 19/09/2022(UTC) Posts: 382 Location: Kaarina		Originally Posted by: Tie New idea: if the goal is smoke, not a homemade smoke generator… you cold drill a hole in the metal frame and mount a smoke generator vertially. (Type with cables to decoder. Then extend outlet with a silicontube to top of loco. Regards Thor This will work on some cases yes. It depend on the loco and the location of the smoke exhaust. On some points there maybe a flywheel too close etc. But will work on some locos yes. -Eino
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Tie		#16 Posted : 20 February 2024 13:01:21(UTC) Retweet
Joined: 28/09/2019(UTC) Posts: 110 Location: Rogaland, Haugesund		I just compared with my br218. Think it would work. Cold also 3d print the outlet to get twin exhaust. Regards Thor
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