my first machining project

Yep, runs great.
What the pictures may not show is that the crank centerline is above the centerline of the cylinder which causes the incoming air to "leak" around the piston during most of the revolution because the piston is tilted in the cylinder.
And it will only run one direction, if I spin it the other way it will bounce back and take off in IT'S "right" direction.
It runs surprising slow with only the slightest air pressure, but sadly it will not run on a fishtank airpump.

Joe
 
Oh yea, the piston is more of a disc, it is actually sticking out of the bottom of the cylinder in the second picture.you can essentially see all of the side view profile in that pic
 
Ah,now I get it, it's tilted way more than I thought. You know, your next project should be a flame sucker, just slightly more complicated, with a lot of bang for the effort. Powers itself with a very pleasing pop, pop,pop. I'll post a pic of mine if you like.
 
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