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<p>[QUOTE=&quot;Conder101, post: 2358738, member: 66&quot;]The mint use to use single die vertical strike presses that could do 60 to 80 strikes per minute.&nbsp; They later modified or got new presses that allowed duel or quad die setups allowing hem to strike 120 to 320 coins per minute (Notice that is still 60 to 80 strikes per minute).&nbsp; Currently they use single die horizontal strike presses that run at 750 coins per minute.&nbsp; That is 13 coins per second.</p><p><br /></p><p>This brings us to the second problem.&nbsp; It has reached the point no matter how high you increase the pressure (even if the dies could survive it) you can&#039;t increase the relief.&nbsp; It takes TIME for metal to cold flow.&nbsp; At 13 coins per second there just isn&#039;t enough time for the metal to cold flow into deeper relief.</p><p><br /></p><p><br /></p><p>The classic US coins were designed by people who not only understood die sinking, but were also sculptors.&nbsp; Most of the people in the current mints engraving program have their training in computer graphics or graphic arts, two dimensional design.</p><p><br /></p><p><br /></p><p>Actually the hubs are now done that way.&nbsp; The designs are done on a computer screen and the hubs are directly milled by the computer.&nbsp; And it shows.</p><p><br /></p><p><br /></p><p>The commemorative program ended because the government, and the collecting public, was fed up with all the corruption and scandals taking place in the commemorative programs.</p><p><br /></p><p><br /></p><p>Due to the high production levels need for all the coin they all run at the high speeds.&nbsp; If the cents were eliminated it would free up production capacity and all of those presses could then be used for other denominations and speeds could be reduced</p><p><br /></p><p>Now for commemoratives there is no excuse for the low relief because those presses are not under the same high demand requirements.&nbsp; They could have high relief, but they are being designed by those two dimensional trained artists.[/QUOTE]</p><p><br /></p>

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