When your steam engine build requires multiple microscopes ... We eagerly await the equally tiny boiler for a live steam test.

This all started with a steam engine machined from a stainless steel bolt and a brass cylinder. It was tested using compressed air before building the boiler. But what’s a steam engine without a ...

Also for $29.99 is the Exploring Kid Steam Engine Kit. This mostly plastic kit, when assembled, includes a boiler and tube leading to a piston. Due to the open flame and numerous small parts ...