Hi SupaTeach' date=' Basic, hot wire in oil, not a lot of smoke. Danger level moderate,choice of oil, temperature of wire etc. I`d leave it to the pros, look up Tomahawk system for small boats and trains up to OO guage. Dont use "baby oil". Various chemical and pyrotechnic systems give better smoke. Depending on costs the one to explore is "theatrical" ( & disco ) smoke systems. There is scope for someone to miniaturise, and market,this type. It is safe, breathable, non toxic etc. The world is waiting for YOUR breakthrough . I`ll be your first customer as I`m fed up paying 4 quid for 90 seconds of smoke on my boat (drain pellets, four funnels). Best of luck.:thumbs:[/quote']Duncan I think that you will find that Tomahawk are no longer trading, plus their systems seem to be all for 12 volt. and I am not sure how well they will work with 6 volts
:respect4:
George