Steam engine taking shape

I worked more on the rods and cranks tonight, and I now have a picture to show of the parts laid out.

The steel-colored parts from left to right are the piston cylinder, the piston itself with rod and crank lever, and the valve with its two heads, rod, and crank lever. I also put the crank itself along the top the way it will be arranged in the final product.

To do yet:

• Cut out a cylinder for the valve
• Cut out new thicker risers for the crank
• Glue the crank parts and remove the sections of the 4mm rod that shouldn’t be there
• Drill steam ports in the cylinders and run some kind of pipes or hoses between them