I acquired a set of prints for the St Helens steam engine. The prints are made for a set of castings, but I scaled it down about 15% because it was very big.
The original engine was a compound steam engine with Low Pressure Cylinder 60" diameter, 6' stroke, and High Pressure Cylinder 32" diameter, 6' stroke.
I kept it simple and just made two low pressure cylinders 1" diameter. It looks like it was made to pump 1,500,000 gallons a day.
I am not finished with it, but I had to hurry to get it running for the Black Hills in a couple weeks, so I took a few shortcuts. I still need to finish painting and somehow make the columns pretty, and the cap screws have to go! (It would be nice to make a pattern and castings for the columns) But for now, I got it running! Excited to show someone.

(Also, there is a clunk sound I have to figure out!)
I don't really understand the St. Helens Water Works, and the Kirkby Pumping Station. Maybe one of you guys can explain it to me better. I am including some reading material about the history of this engine in a second page.
https://rumble.com/v6yv3ac-st.-helens-steam-engine.html?e9s=src_v1_mfp