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<p>[QUOTE=&quot;cpm9ball, post: 3719260, member: 24633&quot;]I guess it boils down to a matter of understanding the difference in terminology. With Mr. Cuvelier&#039;s first image of machine doubling, he explains....</p><p><br /></p><p>&quot;The push doubling shows a marginal doubling that is flat, uneven and cuts into the device.&quot;</p><p><br /></p><p>That is the &quot;flat and shelflike&quot; appearance to the far left which is shown between the white arrows. It is not the curvature of the tape (?) which represents the remainder of the device after the die has cut into it.</p><p><br /></p><p>In Mr. Cuvelier&#039;s second image, we are shown an actual portrayal of the full curvature of true hub doubling.</p><p><br /></p><p>I should emphasize that Mr. Cuvelier&#039;s images are not what I am questioning. They are accurate, but whoever it was that drew the first diagram posted in this thread is wrong.</p><p><br /></p><p>Chris[/QUOTE]</p><p><br /></p>

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