Bobbins, Oh My...
The pistons were
made from cast iron and the rods from stainless steel. I mounted the
rods to the pistons, turned them in the lathe (on centers) and fit them
in the cylinders.
The piston valves
were also made from cast iron. The stems were made of stainless steal.
The rings for the pistons and bobbins have not been made at this stage.