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I have been toying with the idea of making a radial engine for some time. The Forest Edwards 5 cylinder radial engine looks great as there have been a number of people who have successfully made the engine. The plans are free too, which also helps. However, they are only available in Imperial measurements at this time. So, using Easymill I have converted the first part I chose to make , the master rod. The attached files show the Easymill machining file and the associated DXF file. I drew the master rod using Easymill, but used another package to dimension it and check that all was correct. There are slight differences between the original imperial version and the metric verswion but only in non critical areas.