The miniature traction engine boiler design is to heat partly from underneath and with through tubes from the firebox. This means I can make a simple copper boiler and fix this into a steel firebox. I wanted to share with you the thought process, design process and finally all of the engineering of the actual boiler. For more general information on boiler terminology and design you might like to visit a page dedicated to this subject.
What is the right angle for the boiler to sit relative to the road surface?
One of the first things I needed to learn was how to make the boiler endplates. Forming the endplates over a shape took some time to master, but ended up a rewarding skill to learn.
The materials used in boiler construction are important, brass fittings need to be avoided. This has been particularly important in thinking about how I mount the cylinder to the top of the boiler, my original intention was to use a brass bracket. However, with steam flowing through this and full working pressure it wasn’t such a great idea.
The miniature traction engine boiler internals.