Author Topic: Lane and Bodley 400hp Corliss  (Read 60876 times)

Offline steam guy willy

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Re: Lane and Bodley 400hp Corliss
« Reply #105 on: October 28, 2017, 07:59:55 PM »
coming along nicely...and i can almost hear the clicking !!!

Online crueby

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Re: Lane and Bodley 400hp Corliss
« Reply #106 on: October 28, 2017, 08:07:45 PM »
The crab claws are looking great, wonderful details!

Offline vcutajar

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Re: Lane and Bodley 400hp Corliss
« Reply #107 on: October 28, 2017, 09:17:08 PM »
Great detailed parts Simon.  Love it.

Vince

Offline jeff l

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Re: Lane and Bodley 400hp Corliss
« Reply #108 on: October 29, 2017, 12:33:30 AM »
Simon , Great looking crab claws , how did you machine the rectangle in them ?Jeff

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #109 on: October 29, 2017, 09:04:52 AM »
Thanks guys!

Jeff - I milled the square with the smallest cutter I could and then squared up the corners with a needle file.

Simon.
Ars longa, vita brevis.

Offline scc

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Re: Lane and Bodley 400hp Corliss
« Reply #110 on: October 29, 2017, 09:46:03 AM »
Great work going on here!      The precision on this and many other member's threads almost scare me off attempting something "small" when my two 4inch scale lumps are complete.           Terry

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #111 on: October 29, 2017, 06:10:58 PM »
Terry, precision?  Pah - take a look at this crazy contrivance!  Not actually planning on doing much machining in this setup - just want to skim the end boss to establish the centre.

Simon.
Ars longa, vita brevis.

Offline Dennis

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Re: Lane and Bodley 400hp Corliss
« Reply #112 on: November 04, 2017, 07:59:37 PM »
Hi Simon,

I'm impressed with the crab claws.  They look wonderful. 

And, that's an interesting approach to starting the frame.  It is a challenge to develop some reference planes on the casting for machining.  I think I will try that myself.

Dennis

Offline b.lindsey

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Re: Lane and Bodley 400hp Corliss
« Reply #113 on: November 04, 2017, 11:48:07 PM »
I am getting caught up again on your build Simon and I must say it is really impressive. The crab claws are just amazing!!  I will try to stay more up to date.

Bill

Offline Ramon Wilson

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Re: Lane and Bodley 400hp Corliss
« Reply #114 on: November 05, 2017, 08:25:26 AM »

That's some lovely workmanship Simon, that trip gear is looking superb  :ThumbsUp: :ThumbsUp:

I'll get your cutter in the post today - been a bit sidetracked  ;)

Keep up that great work

Regards - Tug
"I ain't here for the long time but I am here for a good time"
(a very apt phrase - thanks to a well meaning MEM friend)

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #115 on: November 05, 2017, 06:16:11 PM »
Ok so the setup in my last post was never going to be rigid enough so quickly canned that and went for plan B which I've spent the weekend preparing for,

Step 1 was to mount the casting on the mill and use a face mill to rough machine the end faces - tedious but effective, then step 2 was to make a threaded boss and a 'nut' to fit inside the casting.  Then I made a plate with a tightly toleranced hole, slit for a clamp bolt.

What I'm working towards is shown in the last two pictures - mounting the frame on the dividing head with the opposite end supported by the tailstock - should allow me to accurately position the casting in the first place and then machine all the details in one setup - that's the plan at the moment anyway!

Still need to tap the end of the frame to take some bolts to fasten the plate to and obviously setup everything square before I start.

Simon.
Ars longa, vita brevis.

Offline Dennis

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Re: Lane and Bodley 400hp Corliss
« Reply #116 on: November 07, 2017, 10:09:26 PM »
Good looking work Simon,

You have ended up in the same place we did building the prototype for this model.  It is a lot of work but will produce a good solid set up to machine your frame. 

When I made the patterns for the Green Automatic Cutoff engine, the frame is very similar so I included the attachments you have made on the casting.  I believe the added lumps make the machining a lot easier but the frame still requires a lot of careful setup.

Dennis

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #117 on: November 14, 2017, 06:53:46 PM »
Thanks Dennis!  Been slowly but steadily machining the frame features - the flat faces are mostly done and I've rough machined the cross-head tunnel ready for the grooves that locate the wear plates.

Simon.
Ars longa, vita brevis.

Online sco

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Re: Lane and Bodley 400hp Corliss
« Reply #118 on: November 19, 2017, 07:05:08 PM »
And the wear plate grooves are done - took a lot of heart searching on what style of cutter to use - initially was set on using a woodruff cutter but after some stern advice ended up using a Tee slot cutter which worked really nicely.  Also drilled and tapped the holes to mount the governor assembly.

Simon.
Ars longa, vita brevis.

Online Kim

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Re: Lane and Bodley 400hp Corliss
« Reply #119 on: November 19, 2017, 10:16:14 PM »
...initially was set on using a woodruff cutter but after some stern advice ended up using a Tee slot cutter which worked really nicely...

So, I have a silly question. What's the difference between the T-slot cutter and the Woodruff cutter that made the big difference. They seem rather similar to me, which probably means I'm missing the finer points of both.

Thanks,
Kim

 

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