If you’re like me you’ve always admired those gorgeous little working models of complex steam engines. Companies like Stuart offer castings for these lovely beasts so that mere mortals have a shot at owning one. These models are quite expensive to buy new and are also expensive assembled in the aftermarket. Who wouldn’t want one sitting on display nearby?
I was going through the CNCCookbook archives and I came across a great one that had been made by a German modeler using his CNC. He is a contributor on the HMEM boards “JimmyBondi“. His first name is Frank and he is a talented German amateur with what sounds like a day job in engineering/machining as well. He hand wrote all the g-codes to CNC these two gorgeous projects, and he did his own retrofit of CNC to a mid-sized mill and lathe that were used to build these two projects. I just had to share it again it’s so nice:
Something about these things just seems to fit the Christmas spirit.
Here are some other photos from the project:
Truly a staggeringly magnificent piece of work. And, this is Frank’s first engine project!
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Bob are we sure it is a triple expansion ? A triple will have 3 cylinders all of different size. High pressure the smallest bore, intermediate cylinder and the low pressure cylinder with the biggest bore.
This engine is showing 4 cylinders all of the same bore size. Steam supply manifold shows high pressure steam going to all four cylinders.
On a triple exhaust steam from HP cylinder goes to IP cylinder. Exhaust steam from IP cylinder goes to LP cylinder and exhaust steam from LP cylinder goes to the steam condenser.
Dave
The book he refers to, ISBN 978-3-7883-0653-3, is the plans for a two-cylinder, double-acting steam engine with “Marshall Control” (I don’t know a thing about steam engines, so that may be too literal). So, not a triple expansion.
The title is Dampf 32, which makes me think there are at least 31 other projects.
He’s not using castings because they were too expensive, so he simulated the look of castings. Amazing!