Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Thanks, Tony, for all your kind words and for sending me the links. The book is beneficial and I hope I can find something.
quick update I have just spoken with my teacher and he told me I have to design at least one but it would be better if I could build two engines. The first one has to be the most simple steam engine ever and if I have extra time till the deadline (April) I can use my gained experience and make one a bit more beautiful. Ill try to find something in Elmers drawing, but what would you think is the most simple type of engine design that I can use as inspiration, and what is the most simple valve system?
i wish everyone a happy new year
regards
rin