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Big Marine Steam Engine
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Topic: Big Marine Steam Engine (Read 107065 times)
doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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
Anyhow you like pictures
I will post some more later
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sbwhart
Global Moderator
Hero Member
Posts: 3530
Country:
Smile, Be Happy, Have Fun and Rock Until you Drop
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
Logged
A little bit of clearance never got in the road
Location:- Crewe Cheshire
Stilldrillin
Global Moderator
Hero Member
Posts: 4972
Country:
Staveley, Derbyshire. England.
Re: Big Marine Steam Engine
«
Reply #2 on:
June 10, 2011, 02:17:28 AM »
Looking good John.
The spattered specs show just how much effort you've put in, so far........
David D
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David.
Still drilling holes... Sometimes, in the right place!
Still modifying bits of metal... Occasionally, making an improvement!
PekkaNF
Hero Member
Posts: 2523
Country:
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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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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
Valve chest patern
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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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
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
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
Rob pressed the job together for me 10 ton was mentioned.
Just to make sure i welded it as well
Back between centers for a final clean up
Welding allowed me to put fillets on the webs
To say i am pleased with the finished job would be a understatement
Even took some video of it going around
Pattern for the base next (i hate wood work)
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arnoldb
Hero Member
Posts: 515
Country:
Windhoek, Namibia
Re: Big Marine Steam Engine
«
Reply #6 on:
June 12, 2011, 01:55:53 PM »
Good going John
- this is a nice BIG 'un
I love your drive dog
Regards, Arnold
Logged
sbwhart
Global Moderator
Hero Member
Posts: 3530
Country:
Smile, Be Happy, Have Fun and Rock Until you Drop
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.
Stew
Logged
A little bit of clearance never got in the road
Location:- Crewe Cheshire
Bernd
Madmodder Committee
Hero Member
Posts: 3688
Country:
1915 C Cab
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.
Great work John.
Bernd
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Route of the Black Diamonds
Brass_Machine
Administrator
Hero Member
Posts: 5534
Country:
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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Science is fun.
We're all mad here. I'm mad. You're mad.
doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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.
The dog in the picture came with a toy tool set i had as a child
John
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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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
Thought about using O rings
hopefully this engine will see steam so proper piston rings it is
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
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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
Re: Big Marine Steam Engine
«
Reply #12 on:
June 22, 2011, 05:43:26 PM »
Engine base casting
MDF pattern
Mould looking good
Happy with that
Logged
http://www.youtube.com/user/doubleboost
Troutsqueezer
Jr. Member
Posts: 93
Country:
Re: Big Marine Steam Engine
«
Reply #13 on:
June 22, 2011, 06:48:32 PM »
I enjoy seeing your setups. Thanks for the pics.
Logged
-Dennis-
Once you see the bandwagon, it's too late.
doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
Re: Big Marine Steam Engine
«
Reply #14 on:
June 30, 2011, 05:59:12 PM »
Made some small patterns for the main bearing caps
Click the pictures
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saw
Hero Member
Posts: 1003
Country:
lucky amateur
Re: Big Marine Steam Engine
«
Reply #15 on:
July 01, 2011, 05:04:14 AM »
This is a pice of art, good work
Logged
_________________________
Greetings / Benni
http://myprojecty.wordpress.com/category/steam-engine/
DaveH
Hero Member
Posts: 1413
Country:
Kempton Park, South Africa
Re: Big Marine Steam Engine
«
Reply #16 on:
July 01, 2011, 08:25:25 AM »
Really good stuff
Excellent
DaveH
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(Ex Leicester, Thurmaston, Ashby De La Zouch.)
loco
Jr. Member
Posts: 12
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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metalmad
Jr. Member
Posts: 62
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
PETE
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A little bit every day, sometimes the same little bit!
PekkaNF
Hero Member
Posts: 2523
Country:
Re: Big Marine Steam Engine
«
Reply #19 on:
July 02, 2011, 09:04:06 AM »
Wee wuu
What metal is that engine base and works? Looks really nice.
Pekka
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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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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http://www.youtube.com/user/doubleboost
krv3000
Hero Member
Posts: 2188
Country:
Re: Big Marine Steam Engine
«
Reply #21 on:
July 02, 2011, 08:21:12 PM »
oooo brill work
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cfellows
In Memoriam
Sr. Member
Posts: 303
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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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
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
Flat bar cast up
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
Very happy with the fit Jjust nipping but still free enough to turn)
Con rod will be next
John
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PatJ
Guest
Re: Big Marine Steam Engine
«
Reply #24 on:
July 20, 2011, 09:44:27 PM »
Nice work John.
Pat J
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Big Marine Steam Engine