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Author Topic: Turning cast iron wheels.  (Read 991 times)

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  • Tony Bird
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Turning cast iron wheels.
« on: July 30, 2019, 10:27:53 am »
Hi,

Along with the Hornby tinplate wagons I bought(see another thread) came eight part machined cast iron wheel castings.  At least they were drilled and machined on their backs and might have been used in this state though there is no evidence of this.

The wheels as received.
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First they were painted.
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Then their backs were cleaned using wet and dry paper.
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The axle holes were drilled through.
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They were then mounted in a lathe chuck and their fronts machined.
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A spigot with a drive pin was made to allow the tread and flange to me machined.
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A spigot with a driving pin was made to allow the tread and flange to be machined.
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The finished wheels.
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I have no immediate use for these wheels but I expect they will come in useful in the near future.

Regards Tony.
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Re: Turning cast iron wheels.
« Reply #1 on: July 30, 2019, 10:42:25 am »
Hi ,

Sorry I have made a complete mess of this post.  I must admit not being able to see the pictures just their codes when editing isn't the easiest system I have used. Still I hope the general idea comes across.

Regards Tony.
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Re: Turning cast iron wheels.
« Reply #2 on: July 30, 2019, 12:59:10 pm »
Reads well :)
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Re: Turning cast iron wheels.
« Reply #3 on: July 30, 2019, 01:12:06 pm »
No problems understanding your operations and following the post what so ever!

Those wheels cleaned up nicely, so I suspect you are likely to find use for them sooner than you think.
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Re: Turning cast iron wheels.
« Reply #4 on: July 30, 2019, 02:10:49 pm »
they look very nice Tony
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Re: Turning cast iron wheels.
« Reply #5 on: July 30, 2019, 02:34:54 pm »
Tony, the wheels look great.!
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Re: Turning cast iron wheels.
« Reply #6 on: July 30, 2019, 07:32:20 pm »
Enjoyed looking at how you did the wheels Tony.

How do you find the tangential tool? Recommend one?
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Jim

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Re: Turning cast iron wheels.
« Reply #7 on: July 30, 2019, 07:37:55 pm »
What a difference, they don't like the same parts.
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Re: Turning cast iron wheels.
« Reply #8 on: July 31, 2019, 03:05:43 am »
Hi Jim,

How do you find the tangential tool? Recommend one?

About 25 years ago I think they were called Burke Engineering who designed and made this tool sent a video of it working to model engineering clubs in the UK.  Working in the horological trade I was very used to tangential tools but didn't know they were called that; I knew them as a graver that we used for turning by hand. I thought it was a brilliant application of an old tool.  It has been my tool of choice ever since for general turning.

Take care.

Tony.
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Re: Turning cast iron wheels.
« Reply #9 on: July 31, 2019, 08:53:11 pm »
The same tangential tool holder is still made in Australia by Eccentric Engineering.  It's sold as the Diamond Tool Holder.

https://www.eccentricengineering.com.au/index.php?option=com_content&view=article&id=32&Itemid=297

If you are on Instagram his channel is great.  Over the last year the owner posted much of the manufacturing process of this tool holder which is mainly done on manual machines.  Tons of fascinating jigs and setups.
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Re: Turning cast iron wheels.
« Reply #10 on: July 31, 2019, 09:27:06 pm »
Quote from: Tony Bird on July 31, 2019, 03:05:43 am
Hi Jim,

How do you find the tangential tool? Recommend one?

About 25 years ago I think they were called Burke Engineering who designed and made this tool sent a video of it working to model engineering clubs in the UK.  Working in the horological trade I was very used to tangential tools but didn't know they were called that; I knew them as a graver that we used for turning by hand. I thought it was a brilliant application of an old tool.  It has been my tool of choice ever since for general turning.

Take care.

Tony.

Appreciated Tony, I have pondered buying one for ages.
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Re: Turning cast iron wheels.
« Reply #11 on: July 31, 2019, 11:59:57 pm »
Jim, perhaps the very best thing about these tools is the rather universal aspect of them, being able to take cuts in both X & Y axis with equal ease using the same tool at the same setting. The other wonderful thing about these tools is that there is only one surface of your cutter that needs to be dressed, as all the relief angles are taken care of by the rake angle of the bit as held. Yes, there will still be need for using conventional cutting bits for specialty operations, but at least 90% of normal stock removal can be done with this set-up, and generally without even changing anything at the tool post.

I'm rather new to this myself, but find that I'm using it more and more all the time, and it saves a lot of time so doing!
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Re: Turning cast iron wheels.
« Reply #12 on: August 01, 2019, 03:09:15 am »
Hi Jim,

You can use round as well as square bits, they used used to make one for small lathes but I think discontinued, and there is a right hand version as well.

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Take care.

Tony.
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Re: Turning cast iron wheels.
« Reply #13 on: August 01, 2019, 09:19:54 am »
 8) What a difference!  :o
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Nick

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Re: Turning cast iron wheels.
« Reply #14 on: August 01, 2019, 11:49:13 am »
Great work Tony!
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