The Hub coin cleaning YT video: Updated with Part 2

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figgis
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On the basis that a picture tells a thousand wossnames, a moving picture ought to work wonders :lol:



Hope it's of use :thumbsup:
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Saffron
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Thanks Figgis, I found it very good as I had not seen the pencil rubber method used and its results.

I normally use silver foil and bicarbonate of soda, but last night I just used the silver foil (I am sure the tin of bicarbonate of soda will turn up one day when I do not need it!).

For a very obvious reason I look forward to your next video about annealing. I was going to use boiling water but you say it does not work!.

Evan
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I also enjoyed the video....

Re Annealing, I have annealed brass cartridge cases in the past, and would agree boiling water is no where hot enough to have an effect. Most of the coin annealing videos I have seen use a torch, and there can be a very slim margin between a good anneal, and too much heat and disaster so I ll be interested to see how Figgis does his...
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figgis
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Saffron wrote: Sun Oct 25, 2020 1:30 pm Thanks Figgis, I found it very good as I had not seen the pencil rubber method used and its results.

I normally use silver foil and bicarbonate of soda, but last night I just used the silver foil (I am sure the tin of bicarbonate of soda will turn up one day when I do not need it!).

For a very obvious reason I look forward to your next video about annealing. I was going to use boiling water but you say it does not work!.

Evan
Glad you enjoyed it, Evan :thumbsup:

As for doing one on annealing, I will do this just as soon as I manage to find a suitable candidate. I've been lucky to turn up a few hammereds lately but they've all been disappointingly straight (relatively speaking) :lol:
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figgis
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Pete E wrote: Sun Oct 25, 2020 1:37 pm I also enjoyed the video....

Re Annealing, I have annealed brass cartridge cases in the past, and would agree boiling water is no where hot enough to have an effect. Most of the coin annealing videos I have seen use a torch, and there can be a very slim margin between a good anneal, and too much heat and disaster so I ll be interested to see how Figgis does his...
Thanks, Pete - glad you got something from it :thumbsup:

I'm far from being an expert on the annealing process but yes, it can be a very fine line. I recall a YT video put out by a well-known channel where he sat down and explained how he was going to straighten a Lizzie silver. Trouble was, he used one of them powerful plumbers' torches and the coin melted within seconds :o Fair play to him, though - he uploaded the video anyway :thumbsup:
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figgis wrote: Sun Oct 25, 2020 1:43 pm

I'm far from being an expert on the annealing process but yes, it can be a very fine line. I recall a YT video put out by a well-known channel where he sat down and explained how he was going to straighten a Lizzie silver. Trouble was, he used one of them powerful plumbers' torches and the coin melted within seconds :o Fair play to him, though - he uploaded the video anyway :thumbsup:
I think i've seen that video as well..

I think there is definitely a case for using a small butane torch, maybe like those the cooks use in the kitchen, or turning a full size one down to a minimum.

The other problem I see is that the coins we are working on are small and have little mass, meaning they can get too hot very easily..

I have wondered if it would be better to place then on a larger, heavier piece of metal and heat them up almost indirectly ??? Sort of a reverse heat sink if you will...I ve not tried it yet, but I think I will if I ever need to anneal again...
Dave The Slave
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Don`t normally watch you tube but gave it a go, as you did it to help everyone.
Have tried a rubber before.
Have tried Baking Soda in foil but not actually rubbing it in.
Will bear these tips in mind.
Cheers, John, :thumbsup: :thumbsup:
Dave.
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figgis
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Pete E wrote: Sun Oct 25, 2020 2:21 pm I think i've seen that video as well..
He did manage to flatten it, I suppose :lol:

Yes, the hammered coin is a delicate flower and you need to approach it with caution. Direct heat is fine if it's managed correctly. A cook's blowtorch is gentle enough and your best friend is dim lighting so you can see the colour of the coin and stop before it gets too hot :thumbsup:
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figgis
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Dave The Slave wrote: Sun Oct 25, 2020 2:46 pm Don`t normally watch you tube but gave it a go, as you did it to help everyone.
Have tried a rubber before.
Have tried Baking Soda in foil but not actually rubbing it in.
Will bear these tips in mind.
Cheers, John, :thumbsup: :thumbsup:
Dave.
Thanks for that, Dave :blow kiss: Oops, wrong emoticon :oops:

Ah, the hell with it - have another couple :blow kiss: :blow kiss: :lol:
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Susie F
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Aha!......so that's what you were up to in the night!.....thank God for that! Thought dementia had set in😆 .....interesting video :thumbsup:
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figgis
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Susie F wrote: Sun Oct 25, 2020 6:08 pm Aha!......so that's what you were up to in the night!
Makes a change from what I normally get up to, I spose.
Susie F wrote: Sun Oct 25, 2020 6:08 pm Thought dementia had set in😆
What makes you think it hasn't?
Susie F wrote: Sun Oct 25, 2020 6:08 pm interesting video :thumbsup:
Thank you, my dear. Which one are we talking about? This one or the "special" one you made me do last week? :Thinking:
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Susie F
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:shh: .....you made me promise not to tell :oops: ........too many gins, my dear :shh:
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figgis
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Susie F wrote: Sun Oct 25, 2020 6:24 pm too many gins, my dear
Two things (well, two more things) are puzzling me right now...

1, How, having lived with me for so long, you can possibly conceive that such a state of affairs can exist, and
2. Why are we having this conversation on here when you're sat two foot away on the sofa?
Pete E
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Just one suggestion for anybody considering trying to anneal a silver coin is to use a standard 2000w hot air gun rather than a blow torch..These hot air guns are rated to between 550c and 600c which is hot enough to anneal, but well below the melting point of silver which is around 880c depending on its purity.

You still have to be careful as the surface of the coin can still get an orange peel effect at temps as low as 650c depending on the alloy concerned, but for our purposes it should still be a lot safer than a blow torch...
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figgis
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Thanks for that, Pete. An annealing vid will be made when an appropriate candidate tuns up and I'll include tips and tricks when making it :thumbsup:
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