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Darren:
That's a nice looking engine your friend Bob has there. I'm guessing it's not full size, but not small either?

Looks like you have a cylinder head on the table. Are you lucky enough to have parts to copy?

chuck foster:
thanks for the kind words guys :clap: it helps a project move in the right direction.

bernd you are 100% right about the steady rest, but i don't have one for my lathe ...........yet.
after sharpening the boring bar the finish turned out perfect, now all i have to do is lap the bore and it will be finished.

stew, it is indeed a 9" south bend. i have had this lathe for the last 10 years and i have had very few problems with it.

darren, the engine has 8" diameter flywheels and the whole engine stands about 13" to 14" tall. it is a 1/3 scale of a 1903 domestic engine.
yes i have a model to copy, i bought it from a guy about 8 or 9 years ago. he worked on the engine but half way through the build he just gave up on it............so i got it for about $25.00.
i finished building the engine and now i would like a second one (no idea why but i do) :scratch:

so i thought i better show some more pictures of what i have been doing.

after all the lathe work was done i had to machine some cut outs where the cylinder mounts to the base.
i mounted the cylinder upside down on my rotary table and used the boring head and cutter to machine the cutouts.

while it was in the mill i drilled the four mounting holes, these will allow the cylinder to be bolted to the four columns that hold the cylinder to the base.

now that i have finished the cylinder i will show it sitting beside the original that i copied. the cylinder is aprox. 3 1/2" tall with a 1.312 dia. bore.

i also made the valves but i only took a picture of them when they were finished. they are one piece and started out as a lump of 3/4" round bar.
after about half and hour of machining each, they were finished

well that does it for tonight, hope to get more done tomorrow night but i think the wife has other ideas for my time.............. :bang: :bang:

chuck :wave:

Bernd:

--- Quote from: chuck foster on November 24, 2009, 09:41:35 PM ---bernd you are 100% right about the steady rest, but i don't have one for my lathe ...........yet.
after sharpening the boring bar the finish turned out perfect, now all i have to do is lap the bore and it will be finished.

--- End quote ---

Hey, as long as you got it done and it looks good. It just looked a little scary. I also now realize that the size wasn't that big as far as the cylinder was concerned. It just looked big in the chuck, that's all.

--- Quote ---well that does it for tonight, hope to get more done tomorrow night but i think the wife has other ideas for my time.............. :bang: :bang:

chuck :wave:

--- End quote ---

I'm leaving this one alone. It is a family forum after all and I hardly know you. :ddb: :lol: :ddb:

Regards,
Bernd

sbwhart:
Hi Chuck

Good job :thumbup:

Have you made the valves from silver steel (drill rod).

Stew

sorveltaja:
Interesting build, Chuck :thumbup:.

I assume, that rebuilding the engine from stock material gives kind of closer view to its original design.

Keep up the good work :clap:.

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