Author Topic: Lane and Bodley 400hp Corliss  (Read 42282 times)

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #15 on: May 15, 2017, 09:45:36 PM »
Why does the bore need a sleeve?

Difficult to see in the pictures but the block was cast with a core that creates steam passages in the top and bottom of the block - the sleeve is needed to seal these passages off so that the only route for the steam is via the valves into the ends of the sleeve.

Simon.
Ars longa, vita brevis.

Offline vcutajar

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Re: Lane and Bodley 400hp Corliss
« Reply #16 on: May 16, 2017, 07:20:26 AM »
Is that a threading insert you are using in the boring bar?

Vince

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #17 on: May 16, 2017, 10:18:17 AM »
Is that a threading insert you are using in the boring bar?

Vince

Bggr - I hoped nobody would notice that!  That is the biggest bar I have and because the insert is full form it has a reasonable radius at the tip so with a fine feed the finish is pretty good - certainly good enough to receive the sleeve anyway.  Am thinking about a between centres boring bar for the sleeve bore though.

Simon.
Ars longa, vita brevis.

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #18 on: May 16, 2017, 10:21:03 AM »
Conversation with wife:

Wife:  Are those your new castings?
Me: Yep
Wife:  Look a bit rough round the edges
Me: That's called flash and is left over from the casting process
Wife: Still look too rough to be any use
Me:  Well the final part is hidden inside
Wife:  What you mean you crack it open like a walnut?
Me:  :ROFL:
Ars longa, vita brevis.

Offline Jasonb

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Re: Lane and Bodley 400hp Corliss
« Reply #19 on: May 16, 2017, 10:38:04 AM »
 :hammerbash: :hammerbash: :hammerbash: :hammerbash:

Offline jschoenly

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Re: Lane and Bodley 400hp Corliss
« Reply #20 on: May 18, 2017, 06:59:12 PM »
Is that fly cutter like a tangential tool?  Looks interesting!
Jared
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--- Model Engineering and Home Shop Hobbies in all Forms! ---

Offline crueby

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Re: Lane and Bodley 400hp Corliss
« Reply #21 on: May 18, 2017, 11:20:16 PM »
Conversation with wife:

Wife:  Are those your new castings?
Me: Yep
Wife:  Look a bit rough round the edges
Me: That's called flash and is left over from the casting process
Wife: Still look too rough to be any use
Me:  Well the final part is hidden inside
Wife:  What you mean you crack it open like a walnut?
Me:  :ROFL:


 :lolb:

Also, was at the Owls Head Transportation Museum, where the jave a compound corliss, they ran it on air for me, very nice! First time I have seen one run in person.
« Last Edit: May 18, 2017, 11:23:32 PM by crueby »

Offline paul gough

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Re: Lane and Bodley 400hp Corliss
« Reply #22 on: May 19, 2017, 01:31:44 AM »
That was a sizeable lump projecting from the 4 jaw, you went nice and slow I take it? How goes the new motor on the lathe, any further issues?? Regards, Paul Gough.

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #23 on: May 19, 2017, 07:29:57 AM »
Is that fly cutter like a tangential tool?  Looks interesting!

Jarad a tangential tool was what I had in mind when I drew it up, there are a few more pictures in Don's flycutter thread here: http://www.modelenginemaker.com/index.php/topic,5268.15.html

Simon.
Ars longa, vita brevis.

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #24 on: May 19, 2017, 07:31:10 AM »
That was a sizeable lump projecting from the 4 jaw, you went nice and slow I take it? How goes the new motor on the lathe, any further issues?? Regards, Paul Gough.

Slow and steady until the bore cleaned up, then higher speed for the final cuts.  No motor issues at present!

Simon.
Ars longa, vita brevis.

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #25 on: May 19, 2017, 09:31:04 PM »
Bored and reamed the valve holes and difficult to see, but the holes all break evenly into the internal steam passages so the central cast core must have been pretty accurately located.

Also tapped 20 7 BA holes - only another 52 to go in this part alone!

Simon.
Ars longa, vita brevis.

Offline Jim Nic

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Re: Lane and Bodley 400hp Corliss
« Reply #26 on: May 19, 2017, 10:00:04 PM »
I'm no expert on castings but those steam passages look  to me to have turned out well.  Here's hoping the rest of the model is as well cast.
Jim
The person who never made a mistake never made anything.

Offline jeff l

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Re: Lane and Bodley 400hp Corliss
« Reply #27 on: May 20, 2017, 02:56:23 AM »
Dennis did a great job on the patterns and the core boxes for the same .

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #28 on: May 20, 2017, 06:25:56 PM »
There was a bit of porosity in one area of the casting that will be the exhaust port but amazingly all the thread holes landed between the porosity!  After tapping 72 7BA holes couldn't resist a mock up of the cylinder block on it's feet up against the engine frame.

Simon.
Ars longa, vita brevis.

Offline Dave Otto

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Re: Lane and Bodley 400hp Corliss
« Reply #29 on: May 21, 2017, 01:04:14 AM »
Looks nice Simon!

I'm enjoying seeing you progress on the Corliss.



Dave