Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Great progress there Dennis, well done!

...and yup, curved spokes 

In hindsight you could have aimed for the square reservoir model to avoid that...but then the base/reservoir most likely would have been more troublesome?
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I think the squareish reservoir  would not be to much problem
I would start with round brass tube and a steel former then silver solder a base inside .