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This is the first steam engine I've ever built. Its a single action wobbler engine, turned from solid brass on a small lathe. I wasn't working from plans, more just winged it with the materials I had. It stands about 4" high. Runs well on about 15psi of air, but at 80psi it turns into a very heavy bristlebot and shakes itself across the table. Construction images are on my blog at: http://dbynoe.blogspot.com/2011/12/st...