Steam engine (Tiny vertical twin this time)

[gbritnell]

Good evening all,
With the 3 tiny singles finished I had a request for a twin using the same cylinder/column pieces so with a couple of drawings made I started on another set of parts. Most of the parts were covered in the tiny vertical thread so I'm just going to post some pictures of this engine. I still have to figure out how I'm going to build the piping so that it can be disassembled if necessary. I have tested both cylinders individually and they run just fine so it ought to tick over nice and slow with the piping on it.
gbritnell

[Don1966]

Awesome George I like it, a twin mini. I will be waiting for your drawings. I don't guess it will have reversing on it. Are you going to do a photo series on the crank?

Don

[ScroungerLee]

That's looking nice.  It's either quite small or you found tires with gigantic valve stems!

Lee

[cfellows]

So, George, all I have to do is request a particular type of engine and, Voila, you'll make me one?  Let me get my list together!!!   

Don't know whether to use the word "really cute" or "beautiful".  I guess both words would equally apply.  Lovely work!

Chuck

[steamer]

Lovely George!    Gonna put a Stephenson link on it?

Dave

[gbritnell]

I have been in contact with a gentlemen, Gil Garceau, in conjunction with my builds. When I told him I was building this twin he asked the same question, "are you going to make a reversing version?" I told him I had seen pictures of a double of this type with reverse but had never actually seen the 'kit' to make it. He sent me a photo of the parts breakdown. They almost look like they were investment cast brass pieces.
I will have to get the old drawing board out and come up with a working set of drawings.
gbritnell

[NickG]

Horizontal Version next, mini table engine, mini beam - we could keep George in work for a while here 

It's incredible, I downloaded the drawings and was looking at them the other day - it was then that I realised how much work would be involved and actually how small the parts are - beyond my capabilities without a doubt! It'd take a very talented machinist to get one looking anything like George's in my opinion.

Nick

[steamer]

Check out Simon's build of the #4....very similar

Dave

[steamboatmodel]

I would love to see one that size with reversing gear in a RC model steam Launch. Maybe one of the Midwest Eliot Bay Launches.
Regards,
Gerald.

[tvoght]

The April 1947 Popular Science started a series on an engine resembling the Stuart #4. It includes reverse gear.
The article series is available here (and in other places):

http://www.john-tom.com/MyPlans/Steam%20Engines/VerticalValveDesignSteamEngineAll.pdf

--Tim

[Robert Hornby]

Remarkable George, beautiful engine, it looks extremely similar to the one I am building. What size is the piston? it looks around 10mm.
Robert

[Mosey]

Good evening all,
With the 3 tiny singles finished I had a request for a twin using the same cylinder/column pieces so with a couple of drawings made I started on another set of parts. Most of the parts were covered in the tiny vertical thread so I'm just going to post some pictures of this engine. I still have to figure out how I'm going to build the piping so that it can be disassembled if necessary. I have tested both cylinders individually and they run just fine so it ought to tick over nice and slow with the piping on it.
gbritnell

George, With your indulgence, what became of the final finish to the radial after the problem? I may have been with Rip Van Winkle for a while and missed it.