Although made from a kit, this one could easily be reproduced with only a lathe. It doesn't really do much, but is kind of cute to watch. It starts and runs easily on a hot cup of coffee.
Heres a link with a lot of good info. Its 32 megs. so it might take a while to download. But well worth the wait
http://www.manufacturingcenter.com/online_book/chap_2.pdf
Well, after doing battle with the elbow engine for a couple weeks I thought I'd give it, and me a break. Maybe a different perspective will help at a later time. Anyway, so I didn't get bored I threw this little thing together.
<embed width="448" height="361"...
Heres the plans that Rick was kind enough to host for me. Its easy enough for the beginner to get his feet wet and it runs with the enthusiasm of a dog chasing his own tail, and just as much fun to watch. Ralph
The David Engine
Heres a clip of my first try at machining. It aint pretty, but it runs. http://s182.photobucket.com/albums/x203/pookiedad/?action=view¤t=1b8b59c3.flv