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| Inside-Out Steam Engine |
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| DaveH:
Chuck, That does look good. :clap: :clap: :clap: :beer: DaveH |
| cfellows:
Thanks, all, for the kind comments. After a brief hiatus to work on my mill / drill and add DRO's on the x and y axes, I got back to work on my engine today. I finished up the two connecting rods. Here in the first picture you can see the fixture I made to hold each connecting rod for machining. I first milled the edge of one side, then took out the screws, flipped the rod over and did the opposite side. After finishing the edges on both rods, I changed end mills to a 3/16" and milled the groove down the center of each side. Finally, I rounded the outside edge of the small end. Here are the finished rods... And an idea of what they will look like on the engine... The whole process was a good exercise in using DRO's for positioning. Makes for much more precise locating than trying to machine up to scribed lines and marks. I think I only need to make and install the crank arms to be able to test the engine. And of course I'll need to make a base for it sooner or later. Chuck |
| NickG:
This really is looking great, love the proportions of it as well as the theory behind it. I must admit, I've only just got around to looking how it works ... should be powerful and sound interesting as it'll have full bore pressure to the cylinder from TDC! :thumbup: |
| cfellows:
Thanks, Nick. Well, the good news is that I got the engine together enough to try running it... The bad news, it doesn't run... at all. Doesn't even look like it's trying. I suspect there is too much binding and too many air leaks. Chuck |
| saw:
Well isn't not always like this the word is adjustment :smart: |
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