Iím not sure who posted this link, http://www.minibulldesign.com/, but I had a go at building their stoves last night. Great fun and so easy and whatís more they work. Why are Trangia burners so expensive?
As yet I havenít managed to get one to continue to burn with a pan sealing the top, like minibullís do, but then I donít think a Trangia will do that. I did make a little pot stand out of a bean can that the burner sits in and boiled a Trangia kettle full of water in about 5 min.
Have a go, itís brilliant.
PS you donít need the external tape that they use as the cans seem to shrink a little when they get hot and seal themselves.