Author Topic: Steam engine (Tiny vertical w/reverse)  (Read 26132 times)

Offline gbritnell

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Steam engine (Tiny vertical w/reverse)
« on: August 22, 2012, 01:26:41 AM »
Gentlemen,
I posted the drawings for this engine in the drawings section.
I am building one for a fellow so I thought I would start a build thread on it as the original wasn't documented because it was pre-digital.
This is the start of the base and sub-base made as one piece. It is being made from 12L14 mild steel.
gbritnell
Talent unshared is talent wasted.

Offline Don1966

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #1 on: August 22, 2012, 01:34:12 AM »
George I will be tagging alone with you. All of your builds are superb. I look forward to you documentation and photos.

Don

Offline gbritnell

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #2 on: August 22, 2012, 01:35:32 AM »
The machining is straight forward, just small. I figured while making one I might as well make two. The blocks of steel were cut to 1.00x.562x.500. The bottom was relieved leaving an .08 wall all around. I roughed it with a .187 end mill then finished it with a .125 end mill. While I'm making the parts I am also making a drawing that will have stop points, step points etc. for the build. As I develop them I will post them for the group.
After the bottom was relieved the block was turned over and the bearing pockets and side profiles were cut.
gbritnell
Talent unshared is talent wasted.

Offline gbritnell

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #3 on: August 22, 2012, 01:37:59 AM »
These photos show the finish profiling of the base.
Talent unshared is talent wasted.

Offline gbritnell

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #4 on: August 22, 2012, 01:43:09 AM »
The last 3 photos for today show the center drilling (#00) and drilling (.029) for the 1.0x.25mm threads. Although the video in this thread shows the comparative size relative to a tire valve cap I am showing the 2 bases relative to a penny. The corner radii will need to be filed on and the bases polished up with some fine emery paper.
gbritnell
Talent unshared is talent wasted.

Offline Dan Rowe

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #5 on: August 22, 2012, 02:19:25 AM »
I am also making a drawing that will have stop points, step points etc. for the build. As I develop them I will post them for the group.

George, thanks for showing this build and the stop drawing will be very helpful to see the sequence better.

Dan
ShaylocoDan

Offline smfr

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #6 on: August 22, 2012, 06:41:28 AM »
Pulling up a chair for this one! It's like a minute version of my Stuart :D

Simon

Offline sbwhart

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #7 on: August 22, 2012, 06:55:09 AM »
I like it very much  :whoohoo:

I find making small parts very satisfying, so will be watching with great interest.

Stew
A little bit of clearance never got in the way

Offline vcutajar

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #8 on: August 22, 2012, 01:46:39 PM »
George

Will be following this one also.

Vince

Offline steamer

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #9 on: August 22, 2012, 01:48:10 PM »
This is a great build George....Like it a lot!

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline tvoght

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #10 on: August 22, 2012, 02:56:03 PM »
George,
I am looking forward very much to this build. I really have a hankering to try one too, but I have a backlog of hankerings. And a real job...

--Tim

Offline ironman123

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #11 on: August 22, 2012, 03:39:05 PM »
OK George, I got my magnify glass and I will be watching to.

Ray
Ray
Central Texas

Offline ref1ection

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #12 on: August 22, 2012, 08:03:03 PM »
Also following along to see this one take shape.

Ray
Indecision... the key to flexibility!

Offline Alan Haisley

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #13 on: August 23, 2012, 02:46:04 AM »
 :Love:  small engine builds.


Alan
Near Raleigh, NC, USA

Offline cfellows

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Re: Steam engine (Tiny vertical w/reverse)
« Reply #14 on: August 23, 2012, 05:33:00 AM »
Interesting build, George.  I love these tiny little reciprocating steam engines.  Thanks for taking the time to share with us.

Chuck
So many projects, so little time...