Quick sketchup

quick sketchup for an engine I've been dreaming to build. I normally don't tend to do hand drawings of my planned engines, but right now I have no other way to do it.

 

Not sure if this works, but it shows hoe I intend to make the tender curve-friendly :)

the middle wheel will move sideways and connected to the outer wheels, they will be turned

 

anyone able to guess the engine? :)

Done