Are there plans out there for this engine. That’s is awesomeWithin the next month, I am planning to build a version of the hoglet, as shown in the picture. The plans call for a 4" bronze flywheel. I am very fortunate to have a large local supplier of metal drops and cut-offs. However, they didn't have any bronze. Without thinking I bought copper. questions: are copper and brass similar in weight? Will I need to worry about corrosion of the aluminum at the copper joint?
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