Easy Smoke Effect

Neat.  I'll give it a try.

Over time, the vaporized smoke fluid trapped inside the shell could mess up the electronics.

I was thinking the same thing.

I had a board that was totally soaked in smoke fluid, and I had to give it an alcohol bath to restore operation.  I think the excess smoke inside may be an issue.

I'd recommend some tubes down to direct the smoke out the sides, rather than having it released inside.

The Board soaked with fluid would be a over fill issue.

The smoke vapor will not turn back into a solid again, no problem unless the fan blows out the fluid droppets thru the cut gasket.

Just my two cents

I am running a 30-1276-1 Camelback with this modification, and I will report back after I get a few miles on it. When the locomotive stops, the smoke from below is dramatic.

Why do you think the smoke vapor will not turn "into a solid (liquid) again"?  My track seems to get dirtier after I run smoke.  I suspect the smoke is settling on the track in it's liquid form.  I have no data to back up that assertion, just intuition.

Earl

The vaporized oil will go back to liquid state after it cools.  The size of the droplets will depend on how dense the vapor was.  Vapor blown out the stack will have a greater area to disperse and will result in smaller droplets.  It may form a film on the engine/car tops and /or possibly the rail heads.  Vapor trapped inside the casting/shell will form larger drops and produce more than a film of oil.  If you are going to try to do this, some tubing to direct it down and out of the casting seems like a good idea.

I'm with the last couple of posts, I've seen the effects of just plain smoke.  The material is not burning, so I can think of no reason it won't condense back into the liquid form when it cools.

If you want to be precise, if you can see it, it's not a vapor, but just very small droplets of liquid suspended in air. It's the same situation as steam. You don't see water vapor - you see a cloud of tiny droplets of water formed as the invisible vapor condenses."

That's why real steam locos are most impressive in cooler weather where this condensation occurs more completely around the stack area.

These droplets of oil will definitely be deposited as a film and coat the interior of the shell, as Chuck says.

Jim