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The Magic Cafe Forum Index » » Ever so sleightly » » What has happened to all the brass? (1 Likes) Printer Friendly Version

tom_stamm
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Recently I was in the market for a chop cup. I noticed that many brass cups where ‘out-of-stock” and it seemed there was more choices in other metals:chrome, black chrome, steel, stainless steel... lots of copper. personally I like brass.

I am curious; Is the world running out of brass? Is it hard to work with? Too expensive? Are we boycotting someone who controls the brass market?
Just Some Guy.

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funsway
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Brass is used in shell casings. With folks stockpiling and packing, not much room in world for magic any more. Smile
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Mad Jake
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Here are some Paul Fox in brass/church bronze....

https://airshipmagic.com/store/home/63-p......lls.html
For quality Paul Fox Cups spun on Danny Dew's Paul Fox tooling visit us at www.airshipmagic.com
Wizard of Oz
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I believe brass is an alloy of copper and tin, or zinc, so unless there is a shortage of those elements the shortage of brass chop cups is likely a result of supply and demand. Maybe brass cups aren't as popular as of late, so there are fewer on the market?
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tom_stamm
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Funsway: Lol that's kinda twisted
Just Some Guy.

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tom_stamm
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Wizard of Oz: I’m not sure that's correct. If brass wasn’t popular wouldn’t there be glut for sale? I thinking brass is popular but too expensize to re-stock. Maybe?
Just Some Guy.

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Mad Jake
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Oz, you nailed it, but there is no shortage. Cups just don't seem to be as popular anymore. Right now in this particular order are costs of metals we use in our shop.

Copper Highest
Brass
Nickel
Aluminum
Stainless Steel

The cost of aluminum is actually higher than Stainless steel right now. Not sure how that works with all the Pepsi cans I recycle each month.

In my opinion I think Brass has lost appeal because not all Brass develop a nice Patina, which a lot of people like on their cups and ones that like a bright brass
don't want to have to polish them constantly as Brass will develop an uneven patina almost on a semi weekly basis.
For quality Paul Fox Cups spun on Danny Dew's Paul Fox tooling visit us at www.airshipmagic.com
tom_stamm
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Thanks Mad Jake. I stand corrected.
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Leo H
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Brass also has a tendency to crack. A number of brass cups that were spun back in the 1970s and 80s haven't fared well.

Today's aluminum soda cans are paper thin. Drop a sealed can on the sidewalk and it will not survive the hit.
Mad Jake
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Brass needs to be annealed. Danny Dew had problems with his Candy Dishes he did in brass. Busby PF cups in brass have been known to crack as well. Dad used Bronze for about all his cups
very few were brass and if they were brass he annealed the heck out of them.
For quality Paul Fox Cups spun on Danny Dew's Paul Fox tooling visit us at www.airshipmagic.com
karnak
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It's interesting that, although copper seems to be the most popular choice overall, when Johnson Products was making their own cups they instead chose to make them out of brass.

(Has Johnson quit making them? They still list the matching chop cup on their website, but they haven't listed their full set of cups and balls for quite a long time now. Are they now discontinued?)
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Leo H
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Johnson made a small run of copper versions of their cup, and never did it again. The last one I saw go up for sale in the used market was at least ten years ago. Contacting them should answer that question, but if they stopped listing their cups, then production must have ended.
Mad Jake
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I have my father's two sets of cups, one brass and one copper from Johnson. There are different grades of machinable copper, a popular one for every day use is C110. C110 is the least expensive, a 4x4x12 if 135.00.
The problem is you can't make cups from them on a CNC, well you can but when milling C110 the shavings start to taffy like which gums up the end mill.

The biggest waste of CNC in regards to cups, is the waste. That's why they are so expensive, because you're paying for a solid block of metal, not a disc of say copper or brass. The manufacturing cost difference is
astronomical.

The next CNC method is CNC spinning. It's the same as hand spinning with the exception that a CAM program is used to CNC spin the metal down the block with just a few passes. There is a draw back to CNC spinning
when you hire out to a shop. The metal is not annealed like it should be that you find spinners that spin by hand. The first set of Stainless Steel Paul Fox cups I spun, I had to anneal every 1/4", I eventually got fed
up and just keep 2 torches on the piece as I was spinning. The CNC process will eventually start showing stress cracks in them over time.

Johnson has said they will be doing cups again soon. They are probraly in the middle of outside contracts.

Johnson also runs batches. Say they are running coin stacks, they mill thousands of sets of them and then move on to the next project, ie coin shells. This then frees them up to take outside contracts where the real money
is.

Just some backroom information I would share with you.
For quality Paul Fox Cups spun on Danny Dew's Paul Fox tooling visit us at www.airshipmagic.com
tom_stamm
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Thanks Jake. I find your message very educational.
Just Some Guy.

"For Seven Tons of the King's Tea,
Six Fine Ladies to Fight a Great Jackass -- me."
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