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Coke Bottle Steam Engine
sbwhart:
Nice one Bernd
:thumbup:
I've got the slide valves to mill on my Loco so I'm watching with interest.
When you come to the steam ports I alway have a couple of trial runs with scrap material, just to check the method out, then if you've got it wrong what the hell its only scrap you scapped off. :headbang:
Have
Fun
:wave:
Stew
kellswaterri:
Excellent work Bernd...I too have the long bed Sherline lathe and although I have not used it on gun metal yet your
pictures show that clearly it is very capable...I love your use of the Face plate as a fly cutting tool... keep up the good work.
All the best for now,
John.
Bernd:
--- Quote from: Circlip on December 28, 2008, 04:40:22 AM ---It's not the chuck pulling out of the taper that's the problem Bernd, it's the CUTTER tramming out of the chuck, But OK, carry on, It just gets a BIT messy when it happens. It's never done it on me cos I don't go there, but I've SEEN it happen and once you've seen it, it makes you think. In the same vein, you only have to see a grinding wheel burst ONCE. :thumbup:
Regards Ian.
--- End quote ---
That cutter is only 3/16" in dia. I've snapped off a few before. So not big deal. Now your going to tell me that it comes out like a bullet. Yes I know that too. Seen 'em and done that. Would i do that with a 1/4" end mill, hell no. It's now getting to big and that will realy hurt if you get hit.
I've seen and heard grinding wheels of 12" and more in dia. let loose. I've also heard a gear cutter of 24" in dia. with hardened HSS blades, approx. 2 dozen, in a cutter let loose. Sounds like a machine gun. All you do is duck and hope you don't get hit.
I've spent over 30 years in a machine shop and I've seen some large pieces, cutters, grinding wheels and such let loose. So you don't need to preach to the choir. :)
Bernd
Bernd:
--- Quote from: sbwhart on December 28, 2008, 04:43:04 AM ---Nice one Bernd
:thumbup:
I've got the slide valves to mill on my Loco so I'm watching with interest.
When you come to the steam ports I alway have a couple of trial runs with scrap material, just to check the method out, then if you've got it wrong what the hell its only scrap you scapped off. :headbang:
Have
Fun
:wave:
Stew
--- End quote ---
Boy now I'm getting a bit nervous with all you guys watching over my shoulder. :D
But keep watching I may be able to show you something, I hope. :lol:
Bernd
Bernd:
--- Quote from: kellswaterri on December 28, 2008, 06:03:32 AM ---Excellent work Bernd...I too have the long bed Sherline lathe and although I have not used it on gun metal yet your
pictures show that clearly it is very capable...I love your use of the Face plate as a fly cutting tool... keep up the good work.
All the best for now,
John.
--- End quote ---
John,
I don't see why you wouldn't be able to do that. You just have to take small cuts. I probably didn't take any more off the .010" (.25mm) at a time.
I can't take credit for the fly cutter. That idea came from Rudy Kouhoupt. He had a section in Home Shop Machinist called the Micro Machinist. He also has a several books out published by Village Press. I have several of them with his projects in them. Nice books if you own a small machine such as this. Very capable too.
Bernd
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