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Author Topic: Big Marine Steam Engine  (Read 132093 times)

Offline doubleboost

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Big Marine Steam Engine
« on: June 09, 2011, 05:24:19 PM »
You may remember the video i put up about casting a large steam engine cylinder.
Steady progress has been made machining it up.
Originaly i was going th build a mill engine but was talked around in to building a marine unit  :lol: :lol: :lol:
Anyhow you like pictures
http://i261.photobucket.com/albums/ii63/john970s0/P5010066.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5010080.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5010068.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5020100.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5020111.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5030012.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5080005.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5180013.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5180016-1.jpgBig Marine Steam Engine

I will post some more later
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Offline sbwhart

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Re: Big Marine Steam Engine
« Reply #1 on: June 10, 2011, 01:23:14 AM »
Going well John

Where did the blood come from ?

Stew
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A little bit of clearance never got in the road
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Offline Stilldrillin

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Re: Big Marine Steam Engine
« Reply #2 on: June 10, 2011, 02:17:28 AM »
Looking good John.  :thumbup:

The spattered specs show just how much effort you've put in, so far........  :D

David D
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Offline PekkaNF

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Re: Big Marine Steam Engine
« Reply #3 on: June 10, 2011, 03:16:13 AM »
That is pretty big.

Engine builders allways leave little on himself on every engine he builds: usually it is blood.

Pekka
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #4 on: June 10, 2011, 06:13:56 PM »
Its not blood its red paint (mind you i have bled for this engine)
More pictures
http://i261.photobucket.com/albums/ii63/john970s0/P5070001.jpgBig Marine Steam Engine
Valve chest patern
http://i261.photobucket.com/albums/ii63/john970s0/P5080006.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5210022.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5280043.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5280053.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5280033.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P5280057.jpgBig Marine Steam Engine


http://i261.photobucket.com/albums/ii63/john970s0/P5300011.jpgBig Marine Steam Engine
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #5 on: June 12, 2011, 01:13:03 PM »
Time for a crank shaft
I was going to build a disc type (nice and easy) then Rob Wilson recond a built up crank would be easy  :) :) :) :) :)
The engine will have a 3.4 inch stroke so the crank will be a nice meaty job

The 2 webs were welded together then machined in to submission
http://i261.photobucket.com/albums/ii63/john970s0/P6040035-1.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P6040041.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P6040036.jpgBig Marine Steam Engine

A bit of en8 bar wea turned up for the big end 7/8 diamiter with 3/4 shoulders 3 thou interfierence fit in the webs
http://i261.photobucket.com/albums/ii63/john970s0/P6040051.jpgBig Marine Steam Engine


25 mm stainless bar for the mains this was turned between centers (my first attempt at this )_
Turned down to be a nice fit in the webs then a 3 thou press fit


http://i261.photobucket.com/albums/ii63/john970s0/P6070012.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P6070013.jpgBig Marine Steam Engine

Rob pressed the job together for me 10 ton was mentioned.

Just to make sure i welded it as well

http://i261.photobucket.com/albums/ii63/john970s0/P6070017.jpgBig Marine Steam Engine

Back between centers for a final clean up

http://i261.photobucket.com/albums/ii63/john970s0/P6080031.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P6080024.jpgBig Marine Steam Engine
Welding allowed me to put fillets on the webs

http://i261.photobucket.com/albums/ii63/john970s0/P6080029.jpgBig Marine Steam Engine

To say i am pleased with the finished job would be a understatement

http://i261.photobucket.com/albums/ii63/john970s0/P6090006-1.jpgBig Marine Steam Engine

http://i261.photobucket.com/albums/ii63/john970s0/P6090003.jpgBig Marine Steam Engine

Even took some video of it going around

http://i261.photobucket.com/albums/ii63/john970s0/P6090005.jpgBig Marine Steam Engine

Pattern for the base next (i hate wood work) :( :(
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Offline arnoldb

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Re: Big Marine Steam Engine
« Reply #6 on: June 12, 2011, 01:55:53 PM »
Good going John  :thumbup: - this is a nice BIG 'un  :D

I love your drive dog  :)

Regards, Arnold
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Offline sbwhart

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Re: Big Marine Steam Engine
« Reply #7 on: June 12, 2011, 02:15:20 PM »
Those glass drive dogs are top notch, where did you get them from John.
 
:D

Stew
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A little bit of clearance never got in the road
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Offline Bernd

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Re: Big Marine Steam Engine
« Reply #8 on: June 12, 2011, 02:22:08 PM »
That's going to be some monster of an engine.  :bugeye:

Great work John.  :thumbup:

Bernd
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Offline Brass_Machine

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Re: Big Marine Steam Engine
« Reply #9 on: June 12, 2011, 02:46:27 PM »
Gonna be a big one. Are you going to power anything with it?

Eric
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #10 on: June 12, 2011, 03:28:15 PM »
I think i should make some drive dogs as i am now addicted to turning between centers. :D :D :) :)
The dog in the picture came with a toy tool set i had as a child :doh: :doh: :doh:
John
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #11 on: June 16, 2011, 09:33:24 PM »
While thinking about a base for the engine (woodern pattern) :( :( :( :( :(
Deceded to make the piston  :dremel: :dremel:
Thought about using O rings  :bugeye: :bugeye: :bugeye: hopefully this engine will see steam so proper piston rings it is  :) :) :)
http://i261.photobucket.com/albums/ii63/john970s0/P6110011-2.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6110014.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6110012.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6110013.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6110017.jpgBig Marine Steam Engine
I would normally have pictures of the tempering process but the wife (wor lass) has taken my camera on holiday with her  :( :( :( :( :(.
At least i have a weak in the shop  :) :) :D :D
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #12 on: June 22, 2011, 05:43:26 PM »
Engine base casting
http://i261.photobucket.com/albums/ii63/john970s0/P6200003.jpgBig Marine Steam Engine
MDF pattern
http://i261.photobucket.com/albums/ii63/john970s0/P6200008.jpgBig Marine Steam Engine
Mould looking good
http://i261.photobucket.com/albums/ii63/john970s0/P6200021.jpgBig Marine Steam Engine
Happy with that
http://i261.photobucket.com/albums/ii63/john970s0/P6210005.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6210007.jpgBig Marine Steam Engine
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Offline Troutsqueezer

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Re: Big Marine Steam Engine
« Reply #13 on: June 22, 2011, 06:48:32 PM »
I enjoy seeing your setups. Thanks for the pics.  :thumbup:
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #14 on: June 30, 2011, 05:59:12 PM »
Made some small patterns for the main bearing caps
http://i261.photobucket.com/albums/ii63/john970s0/P6220018.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6220014.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6240011.jpgBig Marine Steam Engine

Click the pictures

http://i261.photobucket.com/albums/ii63/john970s0/P6250013.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6250022.jpgBig Marine Steam Engine
http://i261.photobucket.com/albums/ii63/john970s0/P6260037.jpgBig Marine Steam Engine
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Offline saw

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Re: Big Marine Steam Engine
« Reply #15 on: July 01, 2011, 05:04:14 AM »
This is a pice of art, good work  :clap: :clap: :thumbup:
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Offline DaveH

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Re: Big Marine Steam Engine
« Reply #16 on: July 01, 2011, 08:25:25 AM »
Really good stuff :clap: :clap: :clap:

Excellent :thumbup: :thumbup: :thumbup:

 :beer:
DaveH
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Offline loco

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Re: Big Marine Steam Engine
« Reply #17 on: July 01, 2011, 08:28:15 AM »
So thats where my glasses went - the rose tinted ones
Pete
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Offline metalmad

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Re: Big Marine Steam Engine
« Reply #18 on: July 02, 2011, 07:07:37 AM »
Hi John
Looking great mate
being able to cast your engine blocks  :drool: :drool: :drool:
PETE
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Offline PekkaNF

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Re: Big Marine Steam Engine
« Reply #19 on: July 02, 2011, 09:04:06 AM »
Wee wuu :headbang:

What metal is that engine base and works? Looks really nice.

Pekka
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #20 on: July 02, 2011, 06:09:50 PM »
The base is aluminium
The cylinder is bearing grade (alloybronze)
John
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Offline krv3000

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Re: Big Marine Steam Engine
« Reply #21 on: July 02, 2011, 08:21:12 PM »
oooo brill work
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Offline cfellows

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Re: Big Marine Steam Engine
« Reply #22 on: July 02, 2011, 11:06:16 PM »
Nice work, John.  I'm looking forward to watching the progress on this one.

Chuck
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Offline doubleboost

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Re: Big Marine Steam Engine
« Reply #23 on: July 20, 2011, 05:45:15 PM »
Hi
Got a little bit more done
I needed a lump of bronze flat bar 1 inch thick by 3 inches square for the big end
It is nice to have a furnace
http://i261.photobucket.com/albums/ii63/john970s0/P7200008.jpgBig Marine Steam Engine
Flat bar cast up
http://i261.photobucket.com/albums/ii63/john970s0/P7190040.jpgBig Marine Steam Engine
Machined to size cut in half then bored to fit the crank pin (i turned a dummy pin to dead size and one .001 smaller)
To use as test pieces
http://i261.photobucket.com/albums/ii63/john970s0/P7200012.jpgBig Marine Steam Engine
Very happy with the fit Jjust nipping but still free enough to turn)
http://i261.photobucket.com/albums/ii63/john970s0/P7200015.jpgBig Marine Steam Engine
Con rod will be next
John
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PatJ

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Re: Big Marine Steam Engine
« Reply #24 on: July 20, 2011, 09:44:27 PM »
Nice work John.

Pat J
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