Duplex Factory Steam Engine

[enginemaker1]

I've been building this engine for almost two years now. The work has been slow, mostly done in the winter. Sorry I didn't start the post sooner. Will give updates as I continue.

Tom

 

[ozzie46]

Very very nice.

Ron

 

[gbritnell]

Excellent build so far. You'll have to explain to us how you did the fluting on the cylinder heads and steam chest covers.
gbritnell

 

[Jeff02]

Man, you giving me some GOOD ideas.

Great looking build, thanks for sharing!

 

[BAH101]

Very nice Thm:. I can see the bling fairy getting pretty frustrated with you , but it will be well worth it

 

[enginemaker1]

This is how I did the steam chest and cylinder head.

I first make the cylinder head blanks.

I then setup mt dividing head on my bridgeport and set for 12 divisions.
I used a 60 degree carbide threading cutter in a fly cutter holder and set the tool on center of the head.
Set my depth and cut along the face till I got close to the center and set a stop.

I did the same for the steam chest but I just used a large round stock as you can see in the pics.

To finish I cut my shoulder and drilled my holes then cutoff.

Tom

 

[GailInNM]

Very nice, Tom.
Those heads and covers really enhance the already good looks of your build. :bow:
Thank you for sharing your technique with us. I suspect that it will be copied many times.
Gail in NM

 

[deere_x475guy]

Great looking engine and thanks for sharing.

 

[zeeprogrammer]

Beautiful work.
I'm glad someone asked about the heads and covers.

 

[SBWHART]

Cracking bit of work Tom top class

Very cleaver way of fluting it looks very good.

Look forward to following the rest of the build

Stew

 

[black85vette]

Very nice work. Great details and bling. What is the size of this engine? :bow:

 

[itowbig]

cool one day ill make pretty things out of metal

 

[SAM in LA]

Pretty fancy machining.

The fluting looks wonderful.

This will be a unique engine when completed.

I'm looking forward to seeing more of your build log.

Thanks for sharing.

SAM

 

[Philjoe5]

Outstanding work. This is a unique engine with many distinctive features. :bow:
Thanks for sharing this amazing build.

I have a question about the extension on the steam chest opposite the valve rod side. I have seen this on some engines before. Is it decorative or does it actually serve as a guide for the valve rod?

Cheers,
Phil

 

[4156df]

Tom,
Thanks for sharing your technique. I've been wondering how you did the heads since you first posted the picture.
Dennis

 

[enginemaker1]

Thanks to all for the kind words.

Phil, That actually supports the steam valve rod, But it dose look good don't it.

black85vette, It's about 18 inches long. the flywheels are 6-1/2 inches in diameter x 1-1/4 inches wide.

Tom

 

[kendo]

Hi Tom
Absolutely brilliant, now that's some bling going on there. Looking
forward to the rest of the build, gotta add this one to my favourites

Ken

 

[steamer]

That looks like it might be a Hendy.....Is it?

Dave

 

[enginemaker1]

Yes it is Dave. Can't look up year, 20's 30's, has no serial number.
14" x 5' complete with face plate, 3,4, and 6 jaw chucks, collets, steady rest, and taper attachment.

Tom

 

[steamer]

Cool!

Ran a 16" one once at the museum....nice lathe.

Dave