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 Replies: 28 / Views: 3,582 |
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Pillar of the Community
United States
2651 Posts |
I just checked and unfortunately(maybe fortunately?) the alignment is correct. I have never found any coin with alignment that wasn't within mint tolerance.
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Bedrock of the Community
United States
62064 Posts |
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Pillar of the Community
United States
1476 Posts |
So ? What DOES cause 'Feed Finger' damage? Incorrect psi adjustment on the feeder? Stacked coins trying to go through at the same time? Plating issues? Coop, you posed a question of the day. Please, whats the answer?  |
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Pillar of the Community
United States
2651 Posts |
And how many cents is my one cent FFD coin worth? I wish it was copper!
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Bedrock of the Community
United States
62064 Posts |
Good someone does want to know. The cause of Feeder Finger Damage is a strike on of the fingers. Here are a couple images:   When the fingers are struck they get bent and the scraping of the dies begin until the problems is fixed. |
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Valued Member
 United States
462 Posts |
I bet a feed finger like those in the collecting community would be worth... a pretty penny!
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Bedrock of the Community
United States
62064 Posts |
I got these images off ebay. I wanted to show what caused the problem. The machine probably strikes the finger and they hear it and stop the machine. So probably a few probably gets through before the fix the issue. |
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Pillar of the Community
United States
2651 Posts |
So the Feeder pushes and holds the coin between the dies? How would that cause scrapes on the planchet. I thought I had a good grasp on the minting process but maybe I'm missing something. I guess I'm asking what part of the feeder damages the planchet?
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Bedrock of the Community
United States
62064 Posts |
The feeder inserts and rejects the planchet/coin. When the feeder finger gets damaged, then it scratches the field of the die. Thus the die scrapes are on the fields and run behind the devices as they are sunk into the die. So a polishing of the fields would remove the die scrapes.
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Pillar of the Community
United States
1476 Posts |
Great information!
Makes me want to take a machine apart to see what makes it all happen.
I have been lucky enough to go to the Philly and Denver Mint but your stuck so far away behind glass that you cant tell much of anything.
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Bedrock of the Community
United States
62064 Posts |
here is an image of the setup for San Francisco mint Gold dollars.  |
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Pillar of the Community
United States
1476 Posts |
That is sweet. So With the edge lettering, are the OBV,REV struck THEN the edge lettering? Sorry, I don't want to hi-jack the thread.  |
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Bedrock of the Community
United States
62064 Posts |
This is the setup for the proof dies. I was thinking also it was a two step process, but the Proofs maybe different. Good question.
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Pillar of the Community
United States
2651 Posts |
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Bedrock of the Community
United States
62064 Posts |
I didn't want to hijack the thread, but I had some information that I hadn't shared yet on the subject. Still have a lot more also. I like to use it at the right time.
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Posted 04/05/2014 09:23 am
