Making a TWIN RC Wankel Rotary Engine The Crankshaft ( Eccentric Shaft)
Ever since I made the video with the starter modification on my O. S Wankel engine, I wanted to make a multiple rotor assembly. Last year, I found a second one, new on ebay and I didn t lose the chance to buy it. I know many of you will ask me why not a 3 or a 4 rotor engine It would be absolutely crazy and beautiful, but the cost is really high (almost a grand each) and the complexity is much higher for my skills. We ll start with the 2 rotor and if it works we can dream. Making this crankshaft was quite the task, because due to it s thickness, when the diameter started decreasing on machining, it kept bending slighlty. I was constantly checking with the dial indicator, and the best I could do was to finish the part with 0. 02 runout. I could have used a steady rest, but I don t have one at the moment. Also one of my concerns is that I won t heat treat it as it would bent to the point that it d be unusable. Heat treating is not an option for me unless there is some secret I don t know. Banggood Black Friday
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