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<p>[QUOTE=&quot;Publius2, post: 8311913, member: 105571&quot;]I&#039;ve never done what you&#039;re proposing.&nbsp; I don&#039;t see using traditional machine tools for the upsetting function.&nbsp; It would be extremely awkward to make them try to do something they weren&#039;t meant to do.&nbsp; But, do you own any machine tools like a metal lathe, horizontal or vertical mill, shaper?&nbsp; If you do, then I presume you understand the concept of &quot;making tools from tools&quot;.&nbsp; The upsetting tool is a pretty easy and simple machine to make especially if you aren&#039;t looking to provide edge ornamentation.&nbsp; The artistic engraving would be beyond me.</p><p><br /></p><p>The basic upsetting tool is two not-quite parallel bars, one of which is fixed and the other movable horizontally in relation to the fixed bar.&nbsp; If I was making one, I would mill a groove in both bars that was the thickness of the intended upset rim.&nbsp; It would be tapered end-to-end.&nbsp; Movement is effected by a hand-cranked gear engaged with a rack on the movable bar.&nbsp; Adequate baseplate, anchoring and fixed guides for the movable bar are obvious needs.&nbsp; Length of movement must be designed for more than the circumference of the intended blank.&nbsp; A little force analysis to determine sizes, reactions, gear ratios, etc. and Bob&#039;s your uncle.[/QUOTE]</p><p><br /></p>

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